From sigtran-bounces@ietf.org Fri Sep 01 11:33:55 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GJB0k-0003oN-0c; Fri, 01 Sep 2006 11:32:50 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GJB0i-0003oI-Pb for sigtran@ietf.org; Fri, 01 Sep 2006 11:32:48 -0400 Received: from hicks.ciena.com ([63.118.34.22]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GJB0g-0004bS-HB for sigtran@ietf.org; Fri, 01 Sep 2006 11:32:48 -0400 Received: from lin1-118-39-27.ciena.com (HELO mdmxm02.ciena.com) ([63.118.39.27]) by hicks.ciena.com with ESMTP; 01 Sep 2006 11:43:25 -0400 X-IronPort-AV: i="4.08,201,1154923200"; d="scan'208,217"; a="62617797:sNHT40288828" X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Fri, 1 Sep 2006 11:23:20 -0400 Message-ID: <0901D1988E815341A0103206A834DA07F9BAAB@mdmxm02.ciena.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: WG Last Call on IUA update Thread-Index: AcbN2o6T7fsBsWV3RsWb48GjtOLRnw== From: "Ong, Lyndon" To: X-Spam-Score: 0.0 (/) X-Scan-Signature: b280b4db656c3ca28dd62e5e0b03daa8 Subject: [Sigtran] WG Last Call on IUA update X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1606150267==" Errors-To: sigtran-bounces@ietf.org This is a multi-part message in MIME format. --===============1606150267== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C6CDDA.8F98393D" This is a multi-part message in MIME format. ------_=_NextPart_001_01C6CDDA.8F98393D Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Folks, =20 I've been neglecting this, but some time ago we agreed to go forward with the IUA TLV update in http://ietf.org/internet-drafts/draft-ietf-sigtran-rfc4233update-00.txt =20 Let's do a WG Last Call on this. Given the shortness of the draft, I think just a week would be sufficient for Last Call, however if people want we could make it the usual two weeks. =20 If there are no objections, let's have Last Call starting today (Sept. 1st) and going to next Friday (Sept. 8th). =20 Cheers, =20 L. Ong ------_=_NextPart_001_01C6CDDA.8F98393D Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Hi=20 Folks,
 
I've = been neglecting=20 this, but some time ago we agreed to go forward with the IUA
TLV = update in http://ietf.org/internet-drafts/draft-ietf-sigtran-rfc4233update-= 00.txt
 
Let's = do a WG Last=20 Call on this.  Given the shortness of the draft, I think=20 just
a week = would be=20 sufficient for Last Call, however if people want we could make=20 it
the = usual two=20 weeks.
 
If = there are no=20 objections, let's have Last Call starting today (Sept. 1st) and=20 going
to = next Friday=20 (Sept. 8th).
 
Cheers,
 
L.=20 Ong
------_=_NextPart_001_01C6CDDA.8F98393D-- --===============1606150267== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============1606150267==-- From sigtran-bounces@ietf.org Wed Sep 06 01:23:42 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GKpsU-0002Vb-9g; Wed, 06 Sep 2006 01:23:10 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GKpsT-0002VW-9V for sigtran@ietf.org; Wed, 06 Sep 2006 01:23:09 -0400 Received: from web54009.mail.yahoo.com ([206.190.36.233]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GKpsR-0000Ub-PI for sigtran@ietf.org; Wed, 06 Sep 2006 01:23:09 -0400 Received: (qmail 10000 invoked by uid 60001); 6 Sep 2006 05:23:07 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=uPswh+aF//3RzxxVk1QZGdAWJwrfsizTGUDGatDat2Q8qOKKy6CxnciFw1blLs3lfOgqYbpo+O9rti8cqqruK2NVZekjqjp0d60rSZ4FP5FGYI6CC/Uk8U1pLdASMzXUjXP9Fcw5Rsap8BRe7drfknWdqQtmV8t6YZiOlP7IvqU= ; Message-ID: <20060906052307.9998.qmail@web54009.mail.yahoo.com> Received: from [220.227.132.114] by web54009.mail.yahoo.com via HTTP; Tue, 05 Sep 2006 22:23:07 PDT Date: Tue, 5 Sep 2006 22:23:07 -0700 (PDT) From: Saraswati Bose To: Brian Bidulock , sigtran MIME-Version: 1.0 X-Spam-Score: 0.0 (/) X-Scan-Signature: 21c69d3cfc2dd19218717dbe1d974352 Cc: Subject: [Sigtran] SCTP: Multihoming Configuration X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0138388918==" Errors-To: sigtran-bounces@ietf.org --===============0138388918== Content-Type: multipart/alternative; boundary="0-1129588597-1157520187=:99682" Content-Transfer-Encoding: 8bit --0-1129588597-1157520187=:99682 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi Brian, please suggest in the below. Endpoint A (ASP) Endpoint B (SG) ASSO-1 IPs== IP1,IP2 IP== IP1' Port==P1 Port== P1' ASSO-2 IPs== IP1 IP== IP2 Port==P1 Port== P2 In ASP side Is the above a valid configuration? If yes then wht about the fact tht the same transport address of one multi homed endpoint (IP1+P1) must be used by any other SCTP endpoint? If no then how to support 1 ASP 2 SG scenario since we need 2 unique ASSOCIATION establishment for the scenarion? Regards, Saraswati --------------------------------- Get your own web address for just $1.99/1st yr. We'll help. Yahoo! Small Business. --0-1129588597-1157520187=:99682 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit
Hi Brian,
please suggest in the below.
 
Endpoint A (ASP)                                     Endpoint B (SG)
                                     ASSO-1
IPs== IP1,IP2                                           IP== IP1'
Port==P1                                                 Port== P1'
 
                                     ASSO-2
IPs== IP1                                                 IP== IP2
Port==P1                                                 Port== P2
 
In ASP side Is the above a valid configuration?
If yes then wht about the fact tht the same transport address of one multi homed endpoint (IP1+P1) must be used by any other SCTP endpoint?
 
If no then how to support 1 ASP 2 SG scenario since we need 2 unique ASSOCIATION establishment for the scenarion?
 
Regards,
Saraswati
 
 


Get your own web address for just $1.99/1st yr. We'll help. Yahoo! Small Business. --0-1129588597-1157520187=:99682-- --===============0138388918== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0138388918==-- From sigtran-bounces@ietf.org Wed Sep 06 05:55:48 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GKu7y-0003Ev-Jn; Wed, 06 Sep 2006 05:55:26 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GKu7x-0003Eq-T8 for sigtran@ietf.org; Wed, 06 Sep 2006 05:55:25 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GKu7w-000569-GM for sigtran@ietf.org; Wed, 06 Sep 2006 05:55:25 -0400 Received: from ns.pigworks.openss7.net (IDENT:2VotlbN7k5Is6hfGSD3mWxq/rFSomWMX@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k869tMD04014; Wed, 6 Sep 2006 03:55:22 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k869tKQ06335; Wed, 6 Sep 2006 03:55:20 -0600 Date: Wed, 6 Sep 2006 03:55:20 -0600 From: "Brian F. G. Bidulock" To: Saraswati Bose Message-ID: <20060906035520.A6186@openss7.org> Mail-Followup-To: Saraswati Bose , sigtran References: <20060906052307.9998.qmail@web54009.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060906052307.9998.qmail@web54009.mail.yahoo.com>; from saraswatibose@yahoo.com on Tue, Sep 05, 2006 at 10:23:07PM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 7d33c50f3756db14428398e2bdedd581 Cc: sigtran Subject: [Sigtran] Re: SCTP: Multihoming Configuration X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Saraswati, Saraswati Bose wrote: (Tue, 05 Sep 2006 22:23:07) > > In ASP side Is the above a valid configuration? Yes, it is valid but not common. > If yes then wht about the fact tht the same transport address of one > multi homed endpoint (IP1+P1) must be used by any other SCTP endpoint? The only rule is that there can only be one associated between a pair of transport addresses (address list and port number). The rule is not violoated here because in the second instance IP1,P1 connects to IP2,P2. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 07 03:11:43 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLE2X-0006yF-4g; Thu, 07 Sep 2006 03:11:09 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLE2W-0006y6-2d for sigtran@ietf.org; Thu, 07 Sep 2006 03:11:08 -0400 Received: from levi.nethawkgroup.com ([194.100.156.5]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GLE2T-00089C-Fj for sigtran@ietf.org; Thu, 07 Sep 2006 03:11:08 -0400 Received: from (194.100.156.10) by levi.nethawkgroup.com via smtp id 0dfc_f19c40f8_3e40_11db_8c04_003048245d96; Thu, 07 Sep 2006 10:17:39 +0300 Received: from [10.21.21.54] by jopo.nethawk.fi with HTTP; Thu, 7 Sep 2006 09:58:11 +0300 Date: Thu, 7 Sep 2006 12:28:11 +0530 Message-ID: <44351CC8000041BD@jopo.nethawk.fi> In-Reply-To: From: "Ambika Pr. Tripathy" To: sigtran@ietf.org, sigtran@ietf.org MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-4" Content-Transfer-Encoding: quoted-printable X-Spam-Score: 0.0 (/) X-Scan-Signature: 03169bfe4792634a390035a01a6c6d2f Cc: bidulock@openss7.org Subject: [Sigtran] RE: Sigtran Digest, Vol 29, Issue 2 X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi All, My impression on below setting is, ASP and one SG reside in the same device since one ASP end association contains IP2 as an alternative path which is used for the second association as the destination address. If i am not wrong, the association configuration at ASP end must matc= h, since the same association will communicate to SG 2. Br Ambika P. Tripathy >-- Original Message -- >From: sigtran-request@ietf.org >Subject: Sigtran Digest, Vol 29, Issue 2 >To: sigtran@ietf.org >Reply-To: sigtran@ietf.org >Date: Wed, 06 Sep 2006 12:00:22 -0400 > > >Send Sigtran mailing list submissions to > sigtran@ietf.org > >To subscribe or unsubscribe via the World Wide Web, visit > https://www1.ietf.org/mailman/listinfo/sigtran >or, via email, send a message with subject or body 'help' to > sigtran-request@ietf.org > >You can reach the person managing the list at > sigtran-owner@ietf.org > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of Sigtran digest..." > > >Today's Topics: > > 1. SCTP: Multihoming Configuration (Saraswati Bose) > 2. Re: SCTP: Multihoming Configuration (Brian F. G. Bidulock) > > >---------------------------------------------------------------------- > >Message: 1 >Date: Tue, 5 Sep 2006 22:23:07 -0700 (PDT) >From: Saraswati Bose >Subject: [Sigtran] SCTP: Multihoming Configuration >To: Brian Bidulock , sigtran >Message-ID: <20060906052307.9998.qmail@web54009.mail.yahoo.com> >Content-Type: text/plain; charset=3D"iso-8859-1" > >Hi Brian, > please suggest in the below. > > Endpoint A (ASP) Endpoint B (SG) > ASSO-1 > IPs=3D=3D IP1,IP2 IP=3D=3D I= P1' > Port=3D=3DP1 Port=3D=3D= P1' > > ASSO-2 > IPs=3D=3D IP1 IP=3D=3D= IP2 > Port=3D=3DP1 Port=3D=3D= P2 > > In ASP side Is the above a valid configuration? > If yes then wht about the fact tht the same transport address of one multi >homed endpoint (IP1+P1) must be used by any other SCTP endpoint? > > If no then how to support 1 ASP 2 SG scenario since we need 2 unique ASSOCIATION >establishment for the scenarion? > > Regards, > Saraswati > > > > >--------------------------------- >Get your own web address for just $1.99/1st yr. We'll help. Yahoo! Small= >Business. >-------------- next part -------------- >An HTML attachment was scrubbed... >URL: http://www1.ietf.org/pipermail/sigtran/attachments/20060905/478167e= e/attachment.html > >------------------------------ > >Message: 2 >Date: Wed, 6 Sep 2006 03:55:20 -0600 >From: "Brian F. G. Bidulock" >Subject: [Sigtran] Re: SCTP: Multihoming Configuration >To: Saraswati Bose >Cc: sigtran >Message-ID: <20060906035520.A6186@openss7.org> >Content-Type: text/plain; charset=3Dus-ascii > >Saraswati, > >Saraswati Bose wrote: (Tue, 05 Sep 2006 22= :23:07) >> >> In ASP side Is the above a valid configuration? > >Yes, it is valid but not common. > >> If yes then wht about the fact tht the same transport address of one >> multi homed endpoint (IP1+P1) must be used by any other SCTP endpoi= nt? > >The only rule is that there can only be one associated between a pair of= >transport addresses (address list and port number). The rule is not vio= loated >here because in the second instance IP1,P1 connects to IP2,P2. > >--brian > >-- >Brian F. G. Bidulock >bidulock@openss7.org >http://www.openss7.org/ > > > >------------------------------ > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > > >End of Sigtran Digest, Vol 29, Issue 2 >************************************** Ambika Prasad Tripathy NetHawk Networks India Pvt. Ltd. Charampa, Bhadrak, Orissa India-756101 mob: +91-94373 07049 mail: ambika.tripathy@nethawkgroup.com tripaam@nethawk.fi web: www.nethawk.fi _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 07 10:03:15 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKT0-0001AV-Ko; Thu, 07 Sep 2006 10:02:54 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKSz-00015g-57 for sigtran@ietf.org; Thu, 07 Sep 2006 10:02:53 -0400 Received: from mx01.kapsch.net ([148.198.2.16]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLKSx-0008Kw-IK for sigtran@ietf.org; Thu, 07 Sep 2006 10:02:53 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Thu, 7 Sep 2006 16:02:43 +0200 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Which ASP shall answer in Traffic Mode = Multicast? Thread-Index: AcbShkpK+UeqPfBnSEa1QKTFBAejyw== From: "Sedlak Michael" To: X-OriginalArrivalTime: 07 Sep 2006 14:02:46.0678 (UTC) FILETIME=[4BDBBB60:01C6D286] X-Spam-Score: 0.4 (/) X-Scan-Signature: 6e922792024732fb1bb6f346e63517e4 Subject: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0126700745==" Errors-To: sigtran-bounces@ietf.org This is a multi-part message in MIME format. --===============0126700745== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C6D286.4A057949" This is a multi-part message in MIME format. ------_=_NextPart_001_01C6D286.4A057949 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Hello, After studying the rfc, I could not find an answer on how to proceed after a multicast-message was sent to several ASP. consider a case where 3 ASP are active in an AS, traffic mode type =3D multicast. When an SGP sends a message to all 3 ASP, how do the ASP know which one shall transport the message to the upper layer? And further on, which upper layer shall answer the message? What could be a real-life scenario where multicast is needed? thanks, Michael Sedlak Solution Architect | All-IP Data Core KapschCarrierCom The information contained in this e-mail message is privileged and confidential and is for the exclusive use of the addressee. The person who receives this message and who is not the addressee, one of his employees or an agent entitled to hand it over to the addressee, is informed that he may not use, disclose or reproduce the contents thereof. ------_=_NextPart_001_01C6D286.4A057949 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Which ASP shall answer in Traffic Mode =3D Multicast?

Hello,

After studying the = rfc, I could not find an answer on how to proceed after a = multicast-message was sent to several ASP.

consider a case = where 3 ASP are active in an AS, traffic mode type =3D = multicast.
When an SGP sends = a message to all 3 ASP, how do the ASP know which one shall transport = the message to the upper layer? And further on, which upper layer shall = answer the message?

What could be a = real-life scenario where multicast is needed?


thanks,
Michael = Sedlak

Solution Architect = | All-IP Data Core
KapschCarrierCom

The information contained in this e-mail message is privileged and
confidential and is for the exclusive use of the addressee. The person
who receives this message and who is not the addressee, one of his
employees or an agent entitled to hand it over to the addressee, is
informed that he may not use, disclose or reproduce the contents thereof.

------_=_NextPart_001_01C6D286.4A057949-- --===============0126700745== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0126700745==-- From sigtran-bounces@ietf.org Thu Sep 07 10:10:05 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKZM-0002pV-1U; Thu, 07 Sep 2006 10:09:28 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKZK-0002pQ-CW for sigtran@ietf.org; Thu, 07 Sep 2006 10:09:26 -0400 Received: from wr-out-0506.google.com ([64.233.184.239]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLKZJ-0001M2-6N for sigtran@ietf.org; Thu, 07 Sep 2006 10:09:26 -0400 Received: by wr-out-0506.google.com with SMTP id i32so42513wra for ; Thu, 07 Sep 2006 07:09:24 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=IzVsBXLm0zL0I/M3QBaEGIyHZNDsG8NvU20LTI3EC9DE00tFzPOO923ZydVaJBkaCERFzs6hojVT+o71heduA1xbQAjl5vDo/WMJsNj5J8yRhTR+AOpIYeEQFpMkrtpqKR4FlvPAjtzW7U2lq3Ip26gbDoXNJQwbnZ9jpsaFXtA= Received: by 10.90.100.6 with SMTP id x6mr198438agb; Thu, 07 Sep 2006 07:09:24 -0700 (PDT) Received: by 10.90.105.10 with HTTP; Thu, 7 Sep 2006 07:09:23 -0700 (PDT) Message-ID: Date: Thu, 7 Sep 2006 15:09:23 +0100 From: "Lee Dryburgh" To: "Sedlak Michael" Subject: Re: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: X-Spam-Score: 0.0 (/) X-Scan-Signature: b19722fc8d3865b147c75ae2495625f2 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org I was told from a very good source, assume that multicast (broadcast) did not exist in the specs! I was told that it is never used! So I'd be interested if other SigTran folks had something else to say on the topic. Regards Lee On 07/09/06, Sedlak Michael wrote: > > > > Hello, > > After studying the rfc, I could not find an answer on how to proceed after a > multicast-message was sent to several ASP. > > consider a case where 3 ASP are active in an AS, traffic mode type = > multicast. > When an SGP sends a message to all 3 ASP, how do the ASP know which one > shall transport the message to the upper layer? And further on, which upper > layer shall answer the message? > > What could be a real-life scenario where multicast is needed? > > > thanks, > Michael Sedlak > > Solution Architect | All-IP Data Core > KapschCarrierCom _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 07 10:16:44 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKg7-0005xu-Sn; Thu, 07 Sep 2006 10:16:27 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKg7-0005xp-5q for sigtran@ietf.org; Thu, 07 Sep 2006 10:16:27 -0400 Received: from phl-28-b-170.phl.dsl.cerfnet.com ([63.242.157.170]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLKg4-0002oj-Kq for sigtran@ietf.org; Thu, 07 Sep 2006 10:16:27 -0400 Received: from bn001320 (bn001320 [192.168.1.61]) by phl-28-b-170.phl.dsl.cerfnet.com (8.12.8/8.12.8) with SMTP id k87EGGjd020983 for ; Thu, 7 Sep 2006 10:16:17 -0400 From: "Barry Nagelberg" To: Subject: RE: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? Date: Thu, 7 Sep 2006 10:18:46 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300 Importance: Normal X-Spam-Score: 1.5 (+) X-Scan-Signature: f4c2cf0bccc868e4cc88dace71fb3f44 X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Lee, If your source is correct, then this is a sad comment on the RFC. Nevertheless, if it's in the RFC, then I would say ignore it at your peril. Someone may use it, and then anyone who doesn't will be non-compliant and non-interoperable. Barry Nagelberg Adax, Inc. -----Original Message----- From: Lee Dryburgh [mailto:dryburghl@gmail.com] Sent: Thursday, September 07, 2006 10:09 AM To: Sedlak Michael Cc: sigtran@ietf.org Subject: Re: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? I was told from a very good source, assume that multicast (broadcast) did not exist in the specs! I was told that it is never used! So I'd be interested if other SigTran folks had something else to say on the topic. Regards Lee On 07/09/06, Sedlak Michael wrote: > > > > Hello, > > After studying the rfc, I could not find an answer on how to proceed after a > multicast-message was sent to several ASP. > > consider a case where 3 ASP are active in an AS, traffic mode type = > multicast. > When an SGP sends a message to all 3 ASP, how do the ASP know which one > shall transport the message to the upper layer? And further on, which upper > layer shall answer the message? > > What could be a real-life scenario where multicast is needed? > > > thanks, > Michael Sedlak > > Solution Architect | All-IP Data Core > KapschCarrierCom _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 07 10:18:48 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKiO-0006uN-LC; Thu, 07 Sep 2006 10:18:48 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKiN-0006ss-Ft for sigtran@ietf.org; Thu, 07 Sep 2006 10:18:47 -0400 Received: from us-wkf-fwmain.comverse.com ([63.64.185.250] helo=us-wkf-interscan1.comverse.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLKiL-0003NU-4r for sigtran@ietf.org; Thu, 07 Sep 2006 10:18:47 -0400 Received: from us-nj-mail1.comverse.com (localhost.localdomain [127.0.0.1]) by us-wkf-interscan1.comverse.com (8.13.1/8.13.1) with ESMTP id k87EIZjC022916; Thu, 7 Sep 2006 10:18:38 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: RE: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? Date: Thu, 7 Sep 2006 10:18:35 -0400 Message-ID: <849535E338E99741B7F7413F73253EDB04A8E2BF@us-nj-mail1.comverse.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? thread-index: AcbShkpK+UeqPfBnSEa1QKTFBAejywAAb7/g From: "Haresign Lincoln" To: "Sedlak Michael" , X-Spam-Score: 0.1 (/) X-Scan-Signature: 03169bfe4792634a390035a01a6c6d2f Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1323161376==" Errors-To: sigtran-bounces@ietf.org This is a multi-part message in MIME format. --===============1323161376== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C6D288.81A181A7" This is a multi-part message in MIME format. ------_=_NextPart_001_01C6D288.81A181A7 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable One possible use for multicast would be if you are trying to build some redundancy mechanism in. For example: =20 A message gets sent to all ASPs within an AS. By some agreed mechanism within the AS, the ASPs would know who is responsible for responding to that message. However, if a particular ASP died in the middle of a call, all the state was being maintained by the other ASPs, so another ASP could take over the call. =20 This is probably over engineered, and we are not doing it, but it would be one scenario that you might use this capability. =20 Regards, Lincoln ________________________________ From: Sedlak Michael [mailto:michael.sedlak@kapsch.net]=20 Sent: Thursday, September 07, 2006 10:03 AM To: sigtran@ietf.org Subject: [Sigtran] Which ASP shall answer in Traffic Mode =3D Multicast? Hello,=20 After studying the rfc, I could not find an answer on how to proceed after a multicast-message was sent to several ASP.=20 consider a case where 3 ASP are active in an AS, traffic mode type =3D multicast.=20 When an SGP sends a message to all 3 ASP, how do the ASP know which one shall transport the message to the upper layer? And further on, which upper layer shall answer the message? What could be a real-life scenario where multicast is needed?=20 thanks,=20 Michael Sedlak=20 Solution Architect | All-IP Data Core=20 KapschCarrierCom=20 The information contained in this e-mail message is privileged and confidential and is for the exclusive use of the addressee. The person who receives this message and who is not the addressee, one of his employees or an agent entitled to hand it over to the addressee, is informed that he may not use, disclose or reproduce the contents thereof. ------_=_NextPart_001_01C6D288.81A181A7 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Which ASP shall answer in Traffic Mode =3D = Multicast?
One=20 possible use for multicast would be if you are trying to build some = redundancy=20 mechanism in.  For example:
 
A=20 message gets sent to all ASPs within an AS.  By some agreed = mechanism=20 within the AS, the ASPs would know who is responsible for responding to = that=20 message.  However, if a particular ASP died in the middle of a = call, all=20 the state was being maintained by the other ASPs, so another ASP could = take over=20 the call.
 
This=20 is probably over engineered, and we are not doing it, but it would be = one=20 scenario that you might use this capability.
 
Regards,
Lincoln


From: Sedlak Michael=20 [mailto:michael.sedlak@kapsch.net]
Sent: Thursday, September = 07, 2006=20 10:03 AM
To: sigtran@ietf.org
Subject: [Sigtran] = Which ASP=20 shall answer in Traffic Mode =3D Multicast?

Hello, =

After studying the = rfc, I could not=20 find an answer on how to proceed after a multicast-message was sent to = several=20 ASP.

consider a case where = 3 ASP are=20 active in an AS, traffic mode type =3D multicast. =
When an SGP sends a message to = all 3 ASP, how=20 do the ASP know which one shall transport the message to the upper = layer? And=20 further on, which upper layer shall answer the = message?

What could be a = real-life scenario=20 where multicast is needed?


thanks, =
Michael Sedlak =

Solution Architect | = All-IP Data=20 Core
KapschCarrierCom

The information contained in this e-mail message is privileged=20 and
confidential and is for the exclusive use of the addressee. The=20 person
who receives this message and who is not the addressee, one of = his
employees or an agent entitled to hand it over to the addressee,=20 is
informed that he may not use, disclose or reproduce the contents=20 thereof.

------_=_NextPart_001_01C6D288.81A181A7-- --===============1323161376== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============1323161376==-- From sigtran-bounces@ietf.org Thu Sep 07 10:25:18 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKoC-0000BR-Si; Thu, 07 Sep 2006 10:24:48 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKoB-0000BI-Tt for sigtran@ietf.org; Thu, 07 Sep 2006 10:24:47 -0400 Received: from wr-out-0506.google.com ([64.233.184.232]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLKoA-0004Rt-Nj for sigtran@ietf.org; Thu, 07 Sep 2006 10:24:47 -0400 Received: by wr-out-0506.google.com with SMTP id i32so47260wra for ; Thu, 07 Sep 2006 07:24:46 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=Qx+gnAwbzc1wI60hYRP4oLF6hzRFl37eA/La13+R/p0faBhERguHdKgpAdV9DYXTfrxfiBTpdpKxNulbHE8A3A5lm88Ggq5O7sWeZ0OQLrBixdynjQoC8oB3G8Ij1rj79ZewDrAJzBd+zh+GFwJhJqbVZYwSSY6k8oIWTSOAATE= Received: by 10.90.79.6 with SMTP id c6mr209695agb; Thu, 07 Sep 2006 07:24:46 -0700 (PDT) Received: by 10.90.105.10 with HTTP; Thu, 7 Sep 2006 07:24:43 -0700 (PDT) Message-ID: Date: Thu, 7 Sep 2006 15:24:43 +0100 From: "Lee Dryburgh" To: "Haresign Lincoln" Subject: Re: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? In-Reply-To: <849535E338E99741B7F7413F73253EDB04A8E2BF@us-nj-mail1.comverse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <849535E338E99741B7F7413F73253EDB04A8E2BF@us-nj-mail1.comverse.com> X-Spam-Score: 0.0 (/) X-Scan-Signature: 2409bba43e9c8d580670fda8b695204a Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org On 07/09/06, Haresign Lincoln wrote: > > > One possible use for multicast would be if you are trying to build some > redundancy mechanism in. For example: > > A message gets sent to all ASPs within an AS. By some agreed mechanism > within the AS, the ASPs would know who is responsible for responding to that Added complexity comes to mind. But I am sure this has all been thrashed out many times in the past. > message. However, if a particular ASP died in the middle of a call, all the > state was being maintained by the other ASPs, so another ASP could take over > the call. Ditto. > > This is probably over engineered, and we are not doing it, but it would be > one scenario that you might use this capability. > Does any vendor actually provide the ASP broadcast option? Regards Lee _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 07 10:29:10 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKsE-00013T-UU; Thu, 07 Sep 2006 10:28:58 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLKsD-00013O-QR for sigtran@ietf.org; Thu, 07 Sep 2006 10:28:57 -0400 Received: from phl-28-b-170.phl.dsl.cerfnet.com ([63.242.157.170]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLKsC-00059I-9s for sigtran@ietf.org; Thu, 07 Sep 2006 10:28:57 -0400 Received: from bn001320 (bn001320 [192.168.1.61]) by phl-28-b-170.phl.dsl.cerfnet.com (8.12.8/8.12.8) with SMTP id k87ESqjd021048 for ; Thu, 7 Sep 2006 10:28:52 -0400 From: "Barry Nagelberg" To: Subject: RE: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? Date: Thu, 7 Sep 2006 10:31:22 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300 Importance: Normal X-Spam-Score: 1.5 (+) X-Scan-Signature: 769a46790fb42fbb0b0cc700c82f7081 X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Lee, Adax supports it on the SGP. Barry Nagelberg Adax, Inc. -----Original Message----- From: Lee Dryburgh [mailto:dryburghl@gmail.com] Sent: Thursday, September 07, 2006 10:25 AM To: Haresign Lincoln Cc: sigtran@ietf.org Subject: Re: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? On 07/09/06, Haresign Lincoln wrote: > > > One possible use for multicast would be if you are trying to build some > redundancy mechanism in. For example: > > A message gets sent to all ASPs within an AS. By some agreed mechanism > within the AS, the ASPs would know who is responsible for responding to that Added complexity comes to mind. But I am sure this has all been thrashed out many times in the past. > message. However, if a particular ASP died in the middle of a call, all the > state was being maintained by the other ASPs, so another ASP could take over > the call. Ditto. > > This is probably over engineered, and we are not doing it, but it would be > one scenario that you might use this capability. > Does any vendor actually provide the ASP broadcast option? Regards Lee _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 07 10:48:25 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLLAh-0000FL-JE; Thu, 07 Sep 2006 10:48:03 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLLAg-0000CW-PI for sigtran@ietf.org; Thu, 07 Sep 2006 10:48:02 -0400 Received: from wr-out-0506.google.com ([64.233.184.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLL0V-0006MU-29 for sigtran@ietf.org; Thu, 07 Sep 2006 10:37:32 -0400 Received: by wr-out-0506.google.com with SMTP id i32so50695wra for ; Thu, 07 Sep 2006 07:37:30 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=hMsBOD3RazaNuxoSapDsTtiua3iXcHC0EA44E0QDeO+ePa37+EDqoR4y/xT2FcwGra4F3Plp9JvQT7ZDhCHW7syMtV8tOrd+52Jc+Ap6u4PR48uu7cWw4WoIayY1xLSUxzfXGXV8vCYc1w04wMCezwezXrKDvalY1jW1Jv5Q7FY= Received: by 10.90.78.1 with SMTP id a1mr216816agb; Thu, 07 Sep 2006 07:37:30 -0700 (PDT) Received: by 10.90.105.10 with HTTP; Thu, 7 Sep 2006 07:37:30 -0700 (PDT) Message-ID: Date: Thu, 7 Sep 2006 15:37:30 +0100 From: "Lee Dryburgh" To: "Barry Nagelberg" Subject: Re: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: X-Spam-Score: 0.0 (/) X-Scan-Signature: 7a6398bf8aaeabc7a7bb696b6b0a2aad Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org That is were the little effort is. Anybody support it at the real end (AS/MGC)? Regards Lee On 07/09/06, Barry Nagelberg wrote: > Lee, > > Adax supports it on the SGP. > > Barry Nagelberg > Adax, Inc. _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 07 12:53:27 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLN7Q-0001O7-A8; Thu, 07 Sep 2006 12:52:48 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLN7O-0001Ny-O5 for sigtran@ietf.org; Thu, 07 Sep 2006 12:52:46 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLN7N-0002Wt-A3 for sigtran@ietf.org; Thu, 07 Sep 2006 12:52:46 -0400 Received: from ns.pigworks.openss7.net (IDENT:3/dc6H6hz3r1zElWYjcCMnhjP790XG8K@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k87GqiD16832; Thu, 7 Sep 2006 10:52:44 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k87GqhE28140; Thu, 7 Sep 2006 10:52:43 -0600 Date: Thu, 7 Sep 2006 10:52:43 -0600 From: "Brian F. G. Bidulock" To: Sedlak Michael Subject: Re: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? Message-ID: <20060907105243.A27971@openss7.org> Mail-Followup-To: Sedlak Michael , sigtran@ietf.org References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from michael.sedlak@kapsch.net on Thu, Sep 07, 2006 at 04:02:43PM +0200 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: b4a0a5f5992e2a4954405484e7717d8c Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Sedlak, I presume that you are speaking of broadcast traffic mode under, say, M3UA, rather that IP "broadcast" or "multicast". Broadcast is a mechanism that permits all other traffic modes independent of the SG. The ASPs serving an AS decide between themselves which one will handle a given message. In a typical arrangement, each ASP serving the AS would be responsible for active processing of 1 range of SLS (M3UA) and responsible for checkpointing on the remaining ranges of SLS. ASPs heartbeat and checkpoint between each other or rely upon ASP Failure indications from the SGP to detect a failed ASP. When an ASP fails, the active ASP in the AS responsible for acting as backup to the failed ASP takes starts actively processing messages rather than just check pointing for the range of SLS for the failed ASP. Of course, other arrangments are possible. Active-Standby and Loadshare can also be preformed by ASPs in broadcast mode. The reason that you do not see much mention of this in the RFCs is because the RFCs do not dictate how ASPs in a broadcast AS behave because ASP-ASP communication and coordination is out of scope. From the ASP-SG protocol perspective, the SG simply sends the message to each ASP serving the AS and does not dictate who processes it. Hope that helps. --brian Sedlak Michael wrote: (Thu, 07 Sep 2006 16:02:43) > > Hello, > > After studying the rfc, I could not find an answer on how to proceed > after a multicast-message was sent to several ASP. > > consider a case where 3 ASP are active in an AS, traffic mode type = > multicast. > When an SGP sends a message to all 3 ASP, how do the ASP know which > one shall transport the message to the upper layer? And further on, > which upper layer shall answer the message? > > What could be a real-life scenario where multicast is needed? > > thanks, > Michael Sedlak > > Solution Architect | All-IP Data Core > KapschCarrierCom > > The information contained in this e-mail message is privileged and > confidential and is for the exclusive use of the addressee. The person > who receives this message and who is not the addressee, one of his > employees or an agent entitled to hand it over to the addressee, is > informed that he may not use, disclose or reproduce the contents > thereof. > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 07 14:02:47 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLOC8-00047z-5z; Thu, 07 Sep 2006 14:01:44 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLOC6-00046l-KR for sigtran@ietf.org; Thu, 07 Sep 2006 14:01:42 -0400 Received: from mail1.adax.com ([208.201.231.104]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLOC5-0005Vv-5s for sigtran@ietf.org; Thu, 07 Sep 2006 14:01:42 -0400 Received: from adax (adax [12.0.0.88]) by mail1.adax.com (Postfix) with ESMTP id 45ED83E2F; Thu, 7 Sep 2006 11:20:01 -0700 (PDT) Received: by adax (Postfix, from userid 243) id E20FB38002; Thu, 7 Sep 2006 10:59:29 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by adax (Postfix) with ESMTP id E1807C072; Thu, 7 Sep 2006 10:59:29 -0700 (PDT) Date: Thu, 7 Sep 2006 10:59:29 -0700 (PDT) From: Chris Benson X-X-Sender: cbenson@adax To: sigtran@ietf.org Subject: Re: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Spam-Score: 0.0 (/) X-Scan-Signature: 4adaf050708fb13be3316a9eee889caa Cc: Barry Nagelberg X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Lee, I am in another department of Barry's company, and we support broadcast mode at an AS implementation of M3UA. The individual M3UA users (MTP3-users) of each ASP are expected to co-ordinate ownership etc. This AS broadcast mechanism is just a vehicle to all instances of the higher layer at each ASP. You asked whether any vendor supported AS broadcast. Adax does. You are probably more interested in an example usage, and I know of no actual usage of broadcast by our customers, except when they are testing for protocol specification conformance ;-) With thanks, from Chris Benson, Adax, Inc. On Thu, 7 Sep 2006, Lee Dryburgh wrote: > That is were the little effort is. Anybody support it at the real end (AS/MGC)? > > Regards > > Lee > > On 07/09/06, Barry Nagelberg wrote: > > Lee, > > > > Adax supports it on the SGP. > > > > Barry Nagelberg > > Adax, Inc. > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > -- Christopher Benson, Software Engineer, Adax Inc., Berkeley, California, USA. cbenson@adax.com +1 510 548-7047 ext. 189 _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 07 14:11:55 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLOLq-0008Hs-VR; Thu, 07 Sep 2006 14:11:47 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLOLp-0008Hn-LW for sigtran@ietf.org; Thu, 07 Sep 2006 14:11:45 -0400 Received: from qb-out-0506.google.com ([72.14.204.226]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLOLo-0007Oy-FB for sigtran@ietf.org; Thu, 07 Sep 2006 14:11:45 -0400 Received: by qb-out-0506.google.com with SMTP id p36so64qba for ; Thu, 07 Sep 2006 11:11:44 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=ULmCoIOxKZBQgIv4HEgVcH1WwreocOet3M4Bh5oWVsuwhJvsN7vlSOg78BfT8ioVgmEPzFb1ifMHinki/1xkBPEtNfPJBCUbuxt/Q3iY07iSVSN75tqKshmZuEFbt4CdQWnKGTiC0VYBlX0849OJzDQryQYa2bxXTDiU1+AUOmI= Received: by 10.90.100.6 with SMTP id x6mr404548agb; Thu, 07 Sep 2006 11:11:43 -0700 (PDT) Received: by 10.90.105.10 with HTTP; Thu, 7 Sep 2006 11:11:43 -0700 (PDT) Message-ID: Date: Thu, 7 Sep 2006 19:11:43 +0100 From: "Lee Dryburgh" To: "Chris Benson" Subject: Re: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: X-Spam-Score: 0.0 (/) X-Scan-Signature: 9466e0365fc95844abaf7c3f15a05c7d Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Chris, Thanks for the interesting info. As you've pre-guessed I'd be interested to know if anyone knows of a customer using it? Regards Lee On 07/09/06, Chris Benson wrote: > Lee, > > I am in another department of Barry's company, and we support > broadcast mode at an AS implementation of M3UA. The individual > M3UA users (MTP3-users) of each ASP are expected to co-ordinate > ownership etc. This AS broadcast mechanism is just a vehicle to > all instances of the higher layer at each ASP. > > You asked whether any vendor supported AS broadcast. Adax does. > You are probably more interested in an example usage, and I > know of no actual usage of broadcast by our customers, except > when they are testing for protocol specification conformance ;-) > > With thanks, from Chris Benson, > Adax, Inc. > > _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 08 01:24:16 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLYqD-0003Lb-0G; Fri, 08 Sep 2006 01:23:49 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLYqC-0003LT-32 for sigtran@ietf.org; Fri, 08 Sep 2006 01:23:48 -0400 Received: from py-out-1112.google.com ([64.233.166.183]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLYq9-0007qU-IQ for sigtran@ietf.org; Fri, 08 Sep 2006 01:23:48 -0400 Received: by py-out-1112.google.com with SMTP id e30so493865pya for ; Thu, 07 Sep 2006 22:23:45 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=ZI6H2e88bShN8PEz+a2tGBsiADeDTNqPnZHZoEh2VUgBJAyocuZKKUVRo6qCr0wSSTOxVzEX9CX7PEBKodyxjcMn859QaSHqfmjq/4CR9VhKzbu0nxkUGqGv7OpY7qY5kciMaC9NA3XxL99C38yjxBbbVEq3GcExdCPz14oqBT8= Received: by 10.35.76.10 with SMTP id d10mr2110010pyl; Thu, 07 Sep 2006 22:23:45 -0700 (PDT) Received: by 10.35.75.10 with HTTP; Thu, 7 Sep 2006 22:23:44 -0700 (PDT) Message-ID: Date: Fri, 8 Sep 2006 10:53:44 +0530 From: "Saurabh Jain" To: bidulock@openss7.org, "Sedlak Michael" , sigtran@ietf.org Subject: Re: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? In-Reply-To: <20060907105243.A27971@openss7.org> MIME-Version: 1.0 References: <20060907105243.A27971@openss7.org> X-Spam-Score: 0.2 (/) X-Scan-Signature: 848ed35f2a4fc0638fa89629cb640f48 Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0063719597==" Errors-To: sigtran-bounces@ietf.org --===============0063719597== Content-Type: multipart/alternative; boundary="----=_Part_41253_8757059.1157693024959" ------=_Part_41253_8757059.1157693024959 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi, I have query for Broadcast mode in SUA. For M3UA, Broadcast mode : the role of SG would be to Broadcast messages to all ASPs. the role at ASPs would be to accept the message. Now thru inter-ASP communication, one of the ASPs may process it and rest would drop it, or all ASPs may process it. However, will Broadcast mode also be applicable for SUA Class 2 Messages? Potential issues: - This would mean that for a single SCCP Connect request from User, SUA would have to maintain multiple connections, one with each Peer ASP. - What happens if 1 out of multiple Peer ASPs does not send a COAK, (we will not be able to send further messages to this ASP for this connection) - What happens if a new ASP becomes active, (and some Class 2 connections had already been established with earlier ASPs), we will not be able to send data for earlier connections towards this new ASP. RFC 3868, only explains Broadcast Mode in general (in section 4.3.4.3. ASP Active Procedures) *"The algorithm at the SGP for broadcasting traffic within an AS to all the active ASPs is a simple broadcast algorithm, where every message is sent to each of the active ASPs."* If we allow Broadcast Mode for Class 2 Messages then there would be a slight conflict with the above section. rgds Saurabh On 9/7/06, Brian F. G. Bidulock wrote: > > Sedlak, > > I presume that you are speaking of broadcast traffic mode under, say, > M3UA, rather that IP "broadcast" or "multicast". Broadcast is a > mechanism that permits all other traffic modes independent of the SG. > The ASPs serving an AS decide between themselves which one will handle > a given message. In a typical arrangement, each ASP serving the AS > would be responsible for active processing of 1 range of SLS (M3UA) > and responsible for checkpointing on the remaining ranges of SLS. ASPs > heartbeat and checkpoint between each other or rely upon ASP Failure > indications from the SGP to detect a failed ASP. When an ASP fails, > the active ASP in the AS responsible for acting as backup to the failed > ASP takes starts actively processing messages rather than just check > pointing for the range of SLS for the failed ASP. > > Of course, other arrangments are possible. Active-Standby and Loadshare > can also be preformed by ASPs in broadcast mode. > > The reason that you do not see much mention of this in the RFCs is because > the RFCs do not dictate how ASPs in a broadcast AS behave because ASP-ASP > communication and coordination is out of scope. From the ASP-SG protocol > perspective, the SG simply sends the message to each ASP serving the AS > and > does not dictate who processes it. > > Hope that helps. > > --brian > > Sedlak Michael wrote: (Thu, 07 Sep 2006 16:02:43) > > > > Hello, > > > > After studying the rfc, I could not find an answer on how to > proceed > > after a multicast-message was sent to several ASP. > > > > consider a case where 3 ASP are active in an AS, traffic mode type > = > > multicast. > > When an SGP sends a message to all 3 ASP, how do the ASP know > which > > one shall transport the message to the upper layer? And further > on, > > which upper layer shall answer the message? > > > > What could be a real-life scenario where multicast is needed? > > > > thanks, > > Michael Sedlak > > > > Solution Architect | All-IP Data Core > > KapschCarrierCom > > > > The information contained in this e-mail message is privileged and > > confidential and is for the exclusive use of the addressee. The > person > > who receives this message and who is not the addressee, one of his > > employees or an agent entitled to hand it over to the addressee, is > > informed that he may not use, disclose or reproduce the > contents > > thereof. > > > _______________________________________________ > > Sigtran mailing list > > Sigtran@ietf.org > > https://www1.ietf.org/mailman/listinfo/sigtran > > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > ------=_Part_41253_8757059.1157693024959 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline
Hi,
 
I have query for Broadcast mode in SUA.
 
For M3UA, Broadcast mode : the role of SG would be to Broadcast messages to all ASPs. 
                                            the role at ASPs would be to accept the message.
                                                      Now thru inter-ASP communication, one of the ASPs may process it and rest would drop it,
                                                      or all ASPs may process it.
 
However, will Broadcast mode also be applicable for SUA Class 2 Messages?
Potential issues:
  • This would mean that for a single SCCP Connect request from User, SUA would have to maintain multiple connections, one with each Peer ASP.
  • What happens if 1 out of multiple Peer ASPs does not send a COAK,  (we will not be able to send further messages to this ASP for this connection)
  • What happens if a new ASP becomes active, (and some Class 2 connections had already been established with earlier ASPs), we will not be able to send data for earlier connections towards this new ASP.
RFC 3868, only explains Broadcast Mode in general (in section 4.3.4.3.  ASP Active Procedures)
"The algorithm at the SGP for  broadcasting traffic within an AS to all the active ASPs is a simple broadcast algorithm, where every message is sent to each of the  active ASPs."
 
If we allow Broadcast Mode for Class 2 Messages then there would be a slight conflict with the above section.
 
rgds
Saurabh

 
On 9/7/06, Brian F. G. Bidulock <bidulock@openss7.org> wrote:
Sedlak,

I presume that you are speaking of broadcast traffic mode under, say,
M3UA, rather that IP "broadcast" or "multicast".  Broadcast is a
mechanism that permits all other traffic modes independent of the SG.
The ASPs serving an AS decide between themselves which one will handle
a given message.  In a typical arrangement, each ASP serving the AS
would be responsible for active processing of 1 range of SLS (M3UA)
and responsible for checkpointing on the remaining ranges of SLS.  ASPs
heartbeat and checkpoint between each other or rely upon ASP Failure
indications from the SGP to detect a failed ASP.  When an ASP fails,
the active ASP in the AS responsible for acting as backup to the failed
ASP takes starts actively processing messages rather than just check
pointing for the range of SLS for the failed ASP.

Of course, other arrangments are possible.  Active-Standby and Loadshare
can also be preformed by ASPs in broadcast mode.

The reason that you do not see much mention of this in the RFCs is because
the RFCs do not dictate how ASPs in a broadcast AS behave because ASP-ASP
communication and coordination is out of scope.  From the ASP-SG protocol
perspective, the SG simply sends the message to each ASP serving the AS and
does not dictate who processes it.

Hope that helps.

--brian

Sedlak Michael wrote:                      (Thu, 07 Sep 2006 16:02:43)
>
>    Hello,
>
>    After  studying  the rfc, I could not find an answer on how to proceed
>    after a multicast-message was sent to several ASP.
>
>    consider  a  case where 3 ASP are active in an AS, traffic mode type =
>    multicast.
>    When  an  SGP  sends a message to all 3 ASP, how do the ASP know which
>    one  shall  transport  the message to the upper layer? And further on,
>    which upper layer shall answer the message?
>
>    What could be a real-life scenario where multicast is needed?
>
>    thanks,
>    Michael Sedlak
>
>    Solution Architect | All-IP Data Core
>    KapschCarrierCom
>
>    The information contained in this e-mail message is privileged and
>    confidential and is for the exclusive use of the addressee. The person
>    who receives this message and who is not the addressee, one of his
>    employees or an agent entitled to hand it over to the addressee, is
>    informed  that  he  may  not  use,  disclose or reproduce the contents
>    thereof.

> _______________________________________________
> Sigtran mailing list
> Sigtran@ietf.org
> https://www1.ietf.org/mailman/listinfo/sigtran


--
Brian F. G. Bidulock
bidulock@openss7.org
http://www.openss7.org/

_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran

------=_Part_41253_8757059.1157693024959-- --===============0063719597== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0063719597==-- From sigtran-bounces@ietf.org Fri Sep 08 03:07:24 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLaRB-0003Ub-TE; Fri, 08 Sep 2006 03:06:05 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLaRA-0003UW-GN for sigtran@ietf.org; Fri, 08 Sep 2006 03:06:04 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLaR9-0006Nv-3P for sigtran@ietf.org; Fri, 08 Sep 2006 03:06:04 -0400 Received: from ns.pigworks.openss7.net (IDENT:9cjxZOUwIUhUWqLSJSK3U46qPtbql0eq@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k88761D06131; Fri, 8 Sep 2006 01:06:01 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k88761e08088; Fri, 8 Sep 2006 01:06:01 -0600 Date: Fri, 8 Sep 2006 01:06:01 -0600 From: "Brian F. G. Bidulock" To: Saurabh Jain Subject: Re: [Sigtran] Which ASP shall answer in Traffic Mode = Multicast? Message-ID: <20060908010601.A7531@openss7.org> Mail-Followup-To: Saurabh Jain , Sedlak Michael , sigtran@ietf.org References: <20060907105243.A27971@openss7.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from saur99jain@gmail.com on Fri, Sep 08, 2006 at 10:53:44AM +0530 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: e5ba305d0e64821bf3d8bc5d3bb07228 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Saurabh, Saurabh Jain wrote: (Fri, 08 Sep 2006 10:53:44) > > Potential issues: > > * This would mean that for a single SCCP Connect request from User, > SUA would have to maintain multiple connections, one with each > Peer ASP. No, just one connection with the AS. > * What happens if 1 out of multiple Peer ASPs does not send a COAK, > (we will not be able to send further messages to this ASP for this > connection) Why not? All messages can still be sent to all active ASPs in the AS. > * What happens if a new ASP becomes active, (and some Class 2 > connections had already been established with earlier ASPs), we > will not be able to send data for earlier connections towards this > new ASP. Again, why not? --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 08 15:43:43 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLmFL-0004oY-Sq; Fri, 08 Sep 2006 15:42:39 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLmFK-0004jn-B3 for sigtran@ietf.org; Fri, 08 Sep 2006 15:42:38 -0400 Received: from web50607.mail.yahoo.com ([206.190.38.94]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GLm8I-0004Gi-Sa for sigtran@ietf.org; Fri, 08 Sep 2006 15:35:28 -0400 Received: (qmail 52418 invoked by uid 60001); 8 Sep 2006 19:35:02 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=l2GwM3/p3FzPUNujWFefTW7GPVi6orgFFlJwp8ycwpQ/UAgnqJvUsdM38MgPMEn7f7qHm/3eTqfiWLGddsa0ynGkROl3OK03UpCWbfipUBlxLtNJYhzerGfDd6iouDzycJ25YWwFeff1Jd7RqiANABWwKCV25+tvFFDe16IgsZE= ; Message-ID: <20060908193502.52416.qmail@web50607.mail.yahoo.com> Received: from [62.217.232.72] by web50607.mail.yahoo.com via HTTP; Fri, 08 Sep 2006 12:35:00 PDT Date: Fri, 8 Sep 2006 12:35:00 -0700 (PDT) From: IULIAN LASCU To: sigtran@ietf.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: 39bd8f8cbb76cae18b7e23f7cf6b2b9f Subject: [Sigtran] M2UA terminology X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi all, I'm working to define a network having some M2UA SG implementations and one who resides on the MGC side and I need some help to clarify the structure of the network - so here's my question, maybe already answered. Which will be the correct interpretation for the Application Server term (rfc3331) at MCG, considering the following situations [MGC]---[SG]------------[SEP] \ / \--[STP]-/ AS <=> signaling links set (direct signaling route to SEP) or AS <=> all the signaling routes towards SEP or [MGC]------[SG1]----[STP1]---SS7 network behind STP1 \-----[SG2]----[STP2]---SS7 network behind STP2 AS = MGC and in this case a SG could be used only for a specific part of the network described at MGC and following this logic the SEP and STP from the first case should be reached by separate SGs. Thanks Iulian __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 08 22:49:59 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLstg-0001Z2-9e; Fri, 08 Sep 2006 22:48:44 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GLste-0001Y4-NJ for sigtran@ietf.org; Fri, 08 Sep 2006 22:48:42 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GLsgf-0003hm-Pn for sigtran@ietf.org; Fri, 08 Sep 2006 22:35:19 -0400 Received: from ns.pigworks.openss7.net (IDENT:BWg416efF2E+92HHHKizJWrmqGT5FQxa@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k892ZGD02551; Fri, 8 Sep 2006 20:35:16 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k892ZGc21380; Fri, 8 Sep 2006 20:35:16 -0600 Date: Fri, 8 Sep 2006 20:35:16 -0600 From: "Brian F. G. Bidulock" To: IULIAN LASCU Subject: Re: [Sigtran] M2UA terminology Message-ID: <20060908203516.A21270@openss7.org> Mail-Followup-To: IULIAN LASCU , sigtran@ietf.org References: <20060908193502.52416.qmail@web50607.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060908193502.52416.qmail@web50607.mail.yahoo.com>; from iulian_lascu@yahoo.com on Fri, Sep 08, 2006 at 12:35:00PM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: fb6060cb60c0cea16e3f7219e40a0a81 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org IULIAN, The SS7 network side of an M2UA SG is simply SS7 signalling links. How the signalling links are interpreted at the MGC depepends on how there are configured for use by the MTP stack there. M2UA simply provides, if you will, "remote" access to the SS7 signalling link termination at the SG. So, from the SS7 network perpective, your first diagram is no different than, say: [SEP]------------[SEP] \ / \--[STP]-/ The SEP just happens to be functionally decomposed into MGC and SG. Hope that helps. --brian IULIAN LASCU wrote: (Fri, 08 Sep 2006 12:35:00) > Hi all, > > I'm working to define a network having some M2UA SG > implementations and one who resides on the MGC side > and I need some help to clarify the structure of the > network - so here's my question, maybe already > answered. > > Which will be the correct interpretation for the > Application Server term (rfc3331) at MCG, considering > the following situations > > [MGC]---[SG]------------[SEP] > \ / > \--[STP]-/ > > AS <=> signaling links set (direct signaling route to > SEP) > or > AS <=> all the signaling routes towards SEP > or > [MGC]------[SG1]----[STP1]---SS7 network behind STP1 > \-----[SG2]----[STP2]---SS7 network behind STP2 > AS = MGC and in this case a SG could be used only for > a specific part of the network described at MGC and > following this logic the SEP and STP from the first > case should be reached by separate SGs. > > Thanks > Iulian > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Sat Sep 09 15:17:59 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GM8Jp-0006ph-Gk; Sat, 09 Sep 2006 15:16:45 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GM8Jo-0006pZ-AF for sigtran@ietf.org; Sat, 09 Sep 2006 15:16:44 -0400 Received: from web50615.mail.yahoo.com ([206.190.39.115]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GM8Ji-0008Gh-Iw for sigtran@ietf.org; Sat, 09 Sep 2006 15:16:44 -0400 Received: (qmail 46150 invoked by uid 60001); 9 Sep 2006 19:16:38 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=icuwf191kcCcvEnnPy3CnFP+GRqgc+z4FMM/zpDfX2BMr4w6O21O23+8Av6uSunOJeKqsVEYV/3ZH2s/D+vRfToIbPCKu6N2Zi9ghOjR3kwZWuDvO3OI1AsdjkXeWK17mReX5mJv9X30n0QmlI577s68Z69SMG/NRV/u3/c/5RM= ; Message-ID: <20060909191638.46148.qmail@web50615.mail.yahoo.com> Received: from [62.217.232.76] by web50615.mail.yahoo.com via HTTP; Sat, 09 Sep 2006 12:16:38 PDT Date: Sat, 9 Sep 2006 12:16:38 -0700 (PDT) From: IULIAN LASCU Subject: Re: [Sigtran] M2UA terminology To: bidulock@openss7.org In-Reply-To: <20060908203516.A21270@openss7.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: 3a4bc66230659131057bb68ed51598f8 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Brian, I see from your answer that the AS isn't related with any MTP3 entity as a signaling link, signaling link set or with the signaling routes towars a certain PS. It could be, but it's only a particular case. In "real terms" the AS would be the part of MGC MTP3 which a SG could see by the means of its configuration. A limit at the SG for the number of InterfaceIds per AS at a value of 16 (in my case, value which missconduct me to make the analogy AS-signaling link set) signifies only that a SG of this type could treat only that amount of signalings links(16) for the MGC. thanks Iulian --- "Brian F. G. Bidulock" wrote: > IULIAN, > > The SS7 network side of an M2UA SG is simply SS7 > signalling links. How the signalling links are > interpreted at the MGC depepends on how there are > configured for use by the MTP stack there. > > M2UA simply provides, if you will, "remote" access > to > the SS7 signalling link termination at the SG. > > So, from the SS7 network perpective, your first > diagram > is no different than, say: > > [SEP]------------[SEP] > \ / > \--[STP]-/ > > The SEP just happens to be functionally decomposed > into > MGC and SG. > > Hope that helps. > > --brian > > > IULIAN LASCU wrote: (Fri, 08 Sep 2006 > 12:35:00) > > Hi all, > > > > I'm working to define a network having some M2UA > SG > > implementations and one who resides on the MGC > side > > and I need some help to clarify the structure of > the > > network - so here's my question, maybe already > > answered. > > > > Which will be the correct interpretation for the > > Application Server term (rfc3331) at MCG, > considering > > the following situations > > > > [MGC]---[SG]------------[SEP] > > \ / > > \--[STP]-/ > > > > AS <=> signaling links set (direct signaling route > to > > SEP) > > or > > AS <=> all the signaling routes towards SEP > > or > > [MGC]------[SG1]----[STP1]---SS7 network behind > STP1 > > \-----[SG2]----[STP2]---SS7 network behind > STP2 > > AS = MGC and in this case a SG could be used only > for > > a specific part of the network described at MGC > and > > following this logic the SEP and STP from the > first > > case should be reached by separate SGs. > > > > Thanks > > Iulian > > > > > > > > __________________________________________________ > > Do You Yahoo!? > > Tired of spam? Yahoo! Mail has the best spam > protection around > > http://mail.yahoo.com > > > > _______________________________________________ > > Sigtran mailing list > > Sigtran@ietf.org > > https://www1.ietf.org/mailman/listinfo/sigtran > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Mon Sep 11 19:10:42 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GMuuL-00005a-FY; Mon, 11 Sep 2006 19:09:41 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GMuuI-0008VU-W1 for sigtran@ietf.org; Mon, 11 Sep 2006 19:09:38 -0400 Received: from hicks.ciena.com ([63.118.34.22]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GMuhs-0000GY-7W for sigtran@ietf.org; Mon, 11 Sep 2006 18:56:49 -0400 Received: from mdmail4.ciena.com (HELO mdmxm02.ciena.com) ([63.118.39.27]) by hicks.ciena.com with ESMTP; 11 Sep 2006 19:10:17 -0400 X-IronPort-AV: i="4.09,147,1157342400"; d="scan'208,217"; a="63286048:sNHT43246168" X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: RE: [Sigtran] WG Last Call on IUA update concludes Date: Mon, 11 Sep 2006 18:56:28 -0400 Message-ID: <0901D1988E815341A0103206A834DA070101A1AB@mdmxm02.ciena.com> In-Reply-To: <0901D1988E815341A0103206A834DA07F9BAAB@mdmxm02.ciena.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] WG Last Call on IUA update concludes Thread-Index: AcbN2o6T7fsBsWV3RsWb48GjtOLRnwIGtNEw From: "Ong, Lyndon" To: "Ong, Lyndon" , X-Spam-Score: 0.0 (/) X-Scan-Signature: dbb8771284c7a36189745aa720dc20ab Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1084685613==" Errors-To: sigtran-bounces@ietf.org This is a multi-part message in MIME format. --===============1084685613== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C6D5F5.84D7C5B3" This is a multi-part message in MIME format. ------_=_NextPart_001_01C6D5F5.84D7C5B3 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Folks, =20 As there were no comments on the IUA update, it is approved by the WG and will be forwarded to our A-Ds for review. =20 Best regards, =20 L. Ong ________________________________ From: Ong, Lyndon [mailto:Lyong@Ciena.com]=20 Sent: Friday, September 01, 2006 8:23 AM To: sigtran@ietf.org Subject: [Sigtran] WG Last Call on IUA update Hi Folks, =20 I've been neglecting this, but some time ago we agreed to go forward with the IUA TLV update in http://ietf.org/internet-drafts/draft-ietf-sigtran-rfc4233update-00.txt =20 Let's do a WG Last Call on this. Given the shortness of the draft, I think just a week would be sufficient for Last Call, however if people want we could make it the usual two weeks. =20 If there are no objections, let's have Last Call starting today (Sept. 1st) and going to next Friday (Sept. 8th). =20 Cheers, =20 L. Ong ------_=_NextPart_001_01C6D5F5.84D7C5B3 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Hi Folks,
 
As there were no comments on the IUA update, = it is=20 approved
by the WG and will be forwarded to our A-Ds = for=20 review.
 
Best regards,
 
L. Ong


From: Ong, Lyndon = [mailto:Lyong@Ciena.com]=20
Sent: Friday, September 01, 2006 8:23 AM
To:=20 sigtran@ietf.org
Subject: [Sigtran] WG Last Call on IUA=20 update

Hi=20 Folks,
 
I've = been neglecting=20 this, but some time ago we agreed to go forward with the IUA
TLV = update in http://ietf.org/internet-drafts/draft-ietf-sigtran-rfc4233update-= 00.txt
 
Let's = do a WG Last=20 Call on this.  Given the shortness of the draft, I think=20 just
a week = would be=20 sufficient for Last Call, however if people want we could make=20 it
the = usual two=20 weeks.
 
If = there are no=20 objections, let's have Last Call starting today (Sept. 1st) and=20 going
to = next Friday=20 (Sept. 8th).
 
Cheers,
 
L.=20 Ong
------_=_NextPart_001_01C6D5F5.84D7C5B3-- --===============1084685613== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============1084685613==-- From sigtran-bounces@ietf.org Thu Sep 14 07:23:24 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GNpIq-0005cW-Lv; Thu, 14 Sep 2006 07:22:44 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GNpIp-0005cO-BG for sigtran@ietf.org; Thu, 14 Sep 2006 07:22:43 -0400 Received: from web54004.mail.yahoo.com ([206.190.36.228]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GNpIn-0005xP-RL for sigtran@ietf.org; Thu, 14 Sep 2006 07:22:43 -0400 Received: (qmail 26709 invoked by uid 60001); 14 Sep 2006 11:22:41 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=kllSJOb9xH5o1mm5r9P/1S88n3ZYUU8VLmM5uPV7cLgUjfA/DF3/B/mtGwJzSmQLby9IPKf2MdVKmOrMUFIzvsTQcT5cKiayisDM5tLbWCoO84CiAHwxHcmLv9q5MkkOvvf4/c9WnecrPs8SxyKM/r9FHKI1nyWCt3tU3w+FOZY= ; Message-ID: <20060914112241.26707.qmail@web54004.mail.yahoo.com> Received: from [220.227.132.114] by web54004.mail.yahoo.com via HTTP; Thu, 14 Sep 2006 04:22:41 PDT Date: Thu, 14 Sep 2006 04:22:41 -0700 (PDT) From: Saraswati Bose To: Brian Bidulock , sigtran MIME-Version: 1.0 X-Spam-Score: 0.0 (/) X-Scan-Signature: 9466e0365fc95844abaf7c3f15a05c7d Cc: Subject: [Sigtran] SCTP data message handling X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0134783054==" Errors-To: sigtran-bounces@ietf.org --===============0134783054== Content-Type: multipart/alternative; boundary="0-111982530-1158232961=:23221" Content-Transfer-Encoding: 8bit --0-111982530-1158232961=:23221 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi Brian, please suggest in the below SCTP-A SCTP-B ARWND==4000 No fragmentation/bundling to be done ASSOCIATION ESTABLISHED.. <-----------User Data of size 5000 bytes ?? Should endpoint B simply reject the data or send it to peer and peer shound reject the data? Regards, Saraswati --------------------------------- Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail. --0-111982530-1158232961=:23221 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit
Hi Brian,
please suggest in the below
SCTP-A                                         SCTP-B
ARWND==4000                                      No fragmentation/bundling to be done
 
            ASSOCIATION ESTABLISHED..
 
                                                             <-----------User Data of size  5000 bytes
?? Should endpoint B simply reject the data or send it to peer and peer shound reject the data?
 
Regards,
Saraswati


Do you Yahoo!?
Everyone is raving about the all-new Yahoo! Mail. --0-111982530-1158232961=:23221-- --===============0134783054== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0134783054==-- From sigtran-bounces@ietf.org Thu Sep 14 07:42:47 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GNpc2-0003GW-Mi; Thu, 14 Sep 2006 07:42:34 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GNpc0-0003Dl-JZ for sigtran@ietf.org; Thu, 14 Sep 2006 07:42:33 -0400 Received: from wx-out-0506.google.com ([66.249.82.233]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GNpQU-0000qp-6q for sigtran@ietf.org; Thu, 14 Sep 2006 07:30:39 -0400 Received: by wx-out-0506.google.com with SMTP id t4so3089415wxc for ; Thu, 14 Sep 2006 04:30:38 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=thxXN/kFtnQu9bjwAJetpEG9B1ahRKZrSm+JvONnkM8QkCL24cApsnhybewpeBGMQ41xulKHROcYqUDTDHYkCkx14UheJ0MnAMJRCbo0Zy9ZUyOkRc0lUJSAGgYwfmc0hVc6hxNOZ4ajy1uT3/TH/JzW1c+NeHv6Lmw3xEseN5A= Received: by 10.70.108.18 with SMTP id g18mr12394679wxc; Thu, 14 Sep 2006 04:30:37 -0700 (PDT) Received: by 10.70.130.2 with HTTP; Thu, 14 Sep 2006 04:30:37 -0700 (PDT) Message-ID: <64b4f63d0609140430q7b0ff733va7bbaef265fbdfc0@mail.gmail.com> Date: Thu, 14 Sep 2006 17:00:37 +0530 From: "Ashish Soregaonkar" To: "Saraswati Bose" Subject: Re: [Sigtran] SCTP data message handling In-Reply-To: <20060914112241.26707.qmail@web54004.mail.yahoo.com> MIME-Version: 1.0 References: <20060914112241.26707.qmail@web54004.mail.yahoo.com> X-Spam-Score: 0.1 (/) X-Scan-Signature: d0bdc596f8dd1c226c458f0b4df27a88 Cc: sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0321883289==" Errors-To: sigtran-bounces@ietf.org --===============0321883289== Content-Type: multipart/alternative; boundary="----=_Part_260602_22670695.1158233437677" ------=_Part_260602_22670695.1158233437677 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline >From RFC2960 Section 6.1 A) At any given time, the data sender MUST NOT transmit new data to any destination transport address if its peer's rwnd indicates that the peer has no buffer space (i.e. rwnd is 0, see Section 6.2.1). However, regardless of the value of rwnd (including if it is 0), the data sender can always have one DATA chunk in flight to the receiver if allowed by cwnd (see rule B below). This rule allows the sender to probe for a change in rwnd that the sender missed due to the SACK having been lost in transit from the data receiver to the data sender. HTH, Ashish On 9/14/06, Saraswati Bose wrote: > > Hi Brian, > please suggest in the below > SCTP-A SCTP-B > ARWND==4000 No fragmentation/bundling > to be done > > ASSOCIATION ESTABLISHED.. > > > <-----------User Data of size 5000 bytes > ?? Should endpoint B simply reject the data or send it to peer and peer > shound reject the data? > > Regards, > Saraswati > > ------------------------------ > Do you Yahoo!? > Everyone is raving about the all-new Yahoo! Mail. > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > ------=_Part_260602_22670695.1158233437677 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline >From RFC2960 Section 6.1


 A) At any given time, the data sender MUST NOT transmit new data to
      any destination transport address if its peer's rwnd indicates
      that the peer has no buffer space (i.e . rwnd is 0, see Section
      6.2.1).  However, regardless of the value of rwnd (including if it
      is 0), the data sender can always have one DATA chunk in flight to
      the receiver if allowed by cwnd (see rule B below).  This rule
      allows the sender to probe for a change in rwnd that the sender
      missed due to the SACK having been lost in transit from the data
      receiver to the data sender.

HTH,
Ashish


On 9/14/06, Saraswati Bose <saraswatibose@yahoo.com> wrote:
Hi Brian,
please suggest in the below
SCTP-A                                         SCTP-B
ARWND==4000                                      No fragmentation/bundling to be done
 
            ASSOCIATION ESTABLISHED..
 
                                                             <-----------User Data of size  5000 bytes
?? Should endpoint B simply reject the data or send it to peer and peer shound reject the data?
 
Regards,
Saraswati


Do you Yahoo!?
Everyone is raving about the all-new Yahoo! Mail.


_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran



------=_Part_260602_22670695.1158233437677-- --===============0321883289== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0321883289==-- From sigtran-bounces@ietf.org Thu Sep 14 08:07:45 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GNq01-0003YI-7D; Thu, 14 Sep 2006 08:07:21 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GNpzz-0003YD-S0 for sigtran@ietf.org; Thu, 14 Sep 2006 08:07:19 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GNpzy-00057x-FZ for sigtran@ietf.org; Thu, 14 Sep 2006 08:07:19 -0400 Received: from ns.pigworks.openss7.net (IDENT:3bTQbctPImpC1MEnkcg4w64RM9vXkxcH@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8EC7HD00429; Thu, 14 Sep 2006 06:07:17 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8EC7HM26985; Thu, 14 Sep 2006 06:07:17 -0600 Date: Thu, 14 Sep 2006 06:07:17 -0600 From: "Brian F. G. Bidulock" To: Saraswati Bose Message-ID: <20060914060716.B26595@openss7.org> Mail-Followup-To: Saraswati Bose , sigtran References: <20060914112241.26707.qmail@web54004.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060914112241.26707.qmail@web54004.mail.yahoo.com>; from saraswatibose@yahoo.com on Thu, Sep 14, 2006 at 04:22:41AM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 7d33c50f3756db14428398e2bdedd581 Cc: sigtran Subject: [Sigtran] Re: SCTP data message handling X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Saraswati, Saraswati Bose wrote: (Thu, 14 Sep 2006 04:22:41) > > SCTP-A SCTP-B > > ARWND==4000 If the MTU greater than 5000, SWS Avoidance dictates that SCTP-A either advertize 1 MTU or zero. SCTP-B after SWS Avoidance should either treat this as 1 MTU or zero also. Nevertheless, the other reponse is correct: you can always have one MTU in flight. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 14 08:48:56 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GNqdq-0001Zq-KJ; Thu, 14 Sep 2006 08:48:30 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GNqdp-0001Wu-41 for sigtran@ietf.org; Thu, 14 Sep 2006 08:48:29 -0400 Received: from web54002.mail.yahoo.com ([206.190.36.226]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GNqdm-0003g4-OW for sigtran@ietf.org; Thu, 14 Sep 2006 08:48:29 -0400 Received: (qmail 94767 invoked by uid 60001); 14 Sep 2006 12:48:26 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=TOppkYZxj2k+nObY7caBPxwHGsc3XdjNYS22C8ROxy9AFHdd26pRGkP4y6rJslx9DiL7prWpu4tGbctgVh0BPKGSyCyQkmfIoDgISUnfuMsHK/0QIhwGmgYhqXdTWqiqu2iK5TzVeab0l0uKDXe9h5H7MtVS4PIAwTSRHZVDuXc= ; Message-ID: <20060914124826.94764.qmail@web54002.mail.yahoo.com> Received: from [220.227.132.114] by web54002.mail.yahoo.com via HTTP; Thu, 14 Sep 2006 05:48:26 PDT Date: Thu, 14 Sep 2006 05:48:26 -0700 (PDT) From: Saraswati Bose To: sigtran MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="0-1185629059-1158238106=:90506" Content-Transfer-Encoding: 8bit X-Spam-Score: 0.1 (/) X-Scan-Signature: 3002fc2e661cd7f114cb6bae92fe88f1 Subject: [Sigtran] Fwd: Re: SCTP data message handling X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org --0-1185629059-1158238106=:90506 Content-Type: multipart/alternative; boundary="0-714129697-1158238106=:90506" --0-714129697-1158238106=:90506 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Note: forwarded message attached. --------------------------------- Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1¢/min. --0-714129697-1158238106=:90506 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit

Note: forwarded message attached.


Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1¢/min. --0-714129697-1158238106=:90506-- --0-1185629059-1158238106=:90506 Content-Type: message/rfc822 Content-Transfer-Encoding: 8bit Received: from [220.227.132.114] by web54004.mail.yahoo.com via HTTP; Thu, 14 Sep 2006 05:45:46 PDT Date: Thu, 14 Sep 2006 05:45:46 -0700 (PDT) From: Saraswati Bose Subject: Re: SCTP data message handling To: bidulock@openss7.org In-Reply-To: <20060914060716.B26595@openss7.org> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1026827149-1158237946=:50320" Content-Transfer-Encoding: 8bit Content-Length: 971 --0-1026827149-1158237946=:50320 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi Brian, It seems I am not understood properly. I wanted to know in case SCTP endpoint A receives ulp data of size greater than the ARWND value of its peer (say Endpoint B) and and suppose that fragmentation/bundling is not supported by endpoint A, should A reject the data or not? If not then should endpoint B reject the data? Regards, Saraswati "Brian F. G. Bidulock" wrote: Saraswati, Saraswati Bose wrote: (Thu, 14 Sep 2006 04:22:41) > > SCTP-A SCTP-B > > ARWND==4000 If the MTU greater than 5000, SWS Avoidance dictates that SCTP-A either advertize 1 MTU or zero. SCTP-B after SWS Avoidance should either treat this as 1 MTU or zero also. Nevertheless, the other reponse is correct: you can always have one MTU in flight. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ --------------------------------- Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail. --0-1026827149-1158237946=:50320 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit
Hi Brian,
It seems I am not understood properly.
I wanted to know in case SCTP endpoint A receives ulp data of size greater than the ARWND value of its peer (say Endpoint B) and and suppose that fragmentation/bundling is not supported by endpoint A, should A reject the data or not?
 
If not then should endpoint B reject the data?
 
Regards,
Saraswati
"Brian F. G. Bidulock" <bidulock@openss7.org> wrote:
Saraswati,

Saraswati Bose wrote: (Thu, 14 Sep 2006 04:22:41)
>
> SCTP-A SCTP-B
>
> ARWND==4000

If the MTU greater than 5000, SWS Avoidance dictates that SCTP-A either
advertize 1 MTU or zero. SCTP-B after SWS Avoidance should either treat
this as 1 MTU or zero also.

Nevertheless, the other reponse is correct: you can always have one MTU
in flight.

--brian

--
Brian F. G. Bidulock
bidulock@openss7.org
http://www.openss7.org/


Do you Yahoo!?
Everyone is raving about the
all-new Yahoo! Mail. --0-1026827149-1158237946=:50320-- --0-1185629059-1158238106=:90506 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --0-1185629059-1158238106=:90506-- From sigtran-bounces@ietf.org Fri Sep 15 01:21:43 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO68N-0002ET-Bh; Fri, 15 Sep 2006 01:21:03 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO68L-0002EO-PD for sigtran@ietf.org; Fri, 15 Sep 2006 01:21:01 -0400 Received: from web56701.mail.re3.yahoo.com ([66.196.97.60]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GO68K-0002YY-Al for sigtran@ietf.org; Fri, 15 Sep 2006 01:21:01 -0400 Received: (qmail 15053 invoked by uid 60001); 15 Sep 2006 05:20:52 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=TlJfCe8cq3cPaaAC2F8hgpm7RX8ltqpRJ20U5kPU5PqgCEW6fNgPcf3IXX6kefJiAh2qrG+7b8GhbhyGTDyhKoQRQ3SY9In79xITcMVEr8qCeceXQl7Qly6Rj2+nhtni3Bd+t+jgFF7CK4WfeCiNwqSUvsChzePytmX8x8TypGA= ; Message-ID: <20060915052052.15051.qmail@web56701.mail.re3.yahoo.com> Received: from [220.227.132.114] by web56701.mail.re3.yahoo.com via HTTP; Thu, 14 Sep 2006 22:20:52 PDT Date: Thu, 14 Sep 2006 22:20:52 -0700 (PDT) From: Padmalochan Moharana To: sigtran@ietf.org, bidulock@openss7.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: 856eb5f76e7a34990d1d457d8e8e5b7f Cc: Subject: [Sigtran] ASP Active for pending RC X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi Brian, please suggest for the following doubts. 1 - In SUA should ASP encode ASP Active for pending RCs if no responce is being received for them. 2 - Should the state of the ASP change to ACTIVE if it not received ASP ACTIVE ACK for all the RC encoded in the ASP ACTIVE message. Regards, Padman, __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 15 02:12:17 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO6vh-0006CL-7R; Fri, 15 Sep 2006 02:12:01 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO6vf-0006Bj-Qu for sigtran@ietf.org; Fri, 15 Sep 2006 02:11:59 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GO6ve-00023A-Dq for sigtran@ietf.org; Fri, 15 Sep 2006 02:11:59 -0400 Received: from ns.pigworks.openss7.net (IDENT:pPBB/X1Ys0BiXUz9twfWi9JWFOyWGAz7@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8F6BtD25564; Fri, 15 Sep 2006 00:11:55 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8F6Bsa11304; Fri, 15 Sep 2006 00:11:54 -0600 Date: Fri, 15 Sep 2006 00:11:54 -0600 From: "Brian F. G. Bidulock" To: Padmalochan Moharana Message-ID: <20060915001154.A11188@openss7.org> Mail-Followup-To: Padmalochan Moharana , sigtran@ietf.org References: <20060915052052.15051.qmail@web56701.mail.re3.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060915052052.15051.qmail@web56701.mail.re3.yahoo.com>; from moharana_p@yahoo.com on Thu, Sep 14, 2006 at 10:20:52PM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: e5ba305d0e64821bf3d8bc5d3bb07228 Cc: sigtran@ietf.org Subject: [Sigtran] Re: ASP Active for pending RC X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Padmalochan, Padmalochan Moharana wrote: (Thu, 14 Sep 2006 22:20:52) > Hi Brian, > > please suggest for the following doubts. > > 1 - In SUA should ASP encode ASP Active for pending > RCs if no responce is being received for them. I am not sure what you mean by "pending RCs". > > 2 - Should the state of the ASP change to ACTIVE if it > not received ASP ACTIVE ACK for all the RC encoded in > the ASP ACTIVE message. The state can change to AS-ACTIVE for the AS for which ASP ACTIVE ACK was received for the associated RCs. The state of AS for which no ASP ACTIVE ACK has been received for the corresponding RCs, can remanin in a state awaiting receipt of an ASP ACTIVE ACK. If a timeout occurs, the ASP can resend ASP ACTIVE with the RC for which no responding ASP ACITVE ACK has yet been received. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 15 02:17:49 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO718-0008Pb-KU; Fri, 15 Sep 2006 02:17:38 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO717-0008PW-M6 for sigtran@ietf.org; Fri, 15 Sep 2006 02:17:37 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GO715-0003Te-Nc for sigtran@ietf.org; Fri, 15 Sep 2006 02:17:37 -0400 Received: from ns.pigworks.openss7.net (IDENT:Eb91Ur69vnfQJGSTVLmSbWuz2qOZTHwG@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8F6HZD25667; Fri, 15 Sep 2006 00:17:35 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8F6HYL11382; Fri, 15 Sep 2006 00:17:34 -0600 Date: Fri, 15 Sep 2006 00:17:34 -0600 From: "Brian F. G. Bidulock" To: Padmalochan Moharana , sigtran@ietf.org Subject: Re: [Sigtran] Re: ASP Active for pending RC Message-ID: <20060915001734.A11322@openss7.org> Mail-Followup-To: Padmalochan Moharana , sigtran@ietf.org References: <20060915052052.15051.qmail@web56701.mail.re3.yahoo.com> <20060915001154.A11188@openss7.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060915001154.A11188@openss7.org>; from bidulock@openss7.org on Fri, Sep 15, 2006 at 12:11:54AM -0600 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 9ed51c9d1356100bce94f1ae4ec616a9 Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Padmalochan, Brian F. G. Bidulock wrote: (Fri, 15 Sep 2006 00:11:54) > Padmalochan, > > Padmalochan Moharana wrote: (Thu, 14 Sep 2006 22:20:52) > > Hi Brian, > > > > please suggest for the following doubts. > > > > 1 - In SUA should ASP encode ASP Active for pending > > RCs if no responce is being received for them. > > I am not sure what you mean by "pending RCs". > > > > > 2 - Should the state of the ASP change to ACTIVE if it > > not received ASP ACTIVE ACK for all the RC encoded in > > the ASP ACTIVE message. > > The state can change to AS-ACTIVE for the AS for which > ASP ACTIVE ACK was received for the associated RCs. The > state of AS for which no ASP ACTIVE ACK has been received > for the corresponding RCs, can remanin in a state awaiting > receipt of an ASP ACTIVE ACK. If a timeout occurs, the > ASP can resend ASP ACTIVE with the RC for which no responding > ASP ACITVE ACK has yet been received. > Let me put that another way: Sending multiple RCs in an ASP ACTIVE (Ack) or ASP INACTIVE (Ack) is really just a convenience for compacting multiple messages into one. No relationship between the RCs contained in the message is formed by placing them together. From a state machine view, one message containing five different RC values is treated the same as though 5 messages of the same type were received each with only one RC value in it. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 15 02:26:25 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO799-0002uN-2m; Fri, 15 Sep 2006 02:25:55 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO797-0002rm-2y for sigtran@ietf.org; Fri, 15 Sep 2006 02:25:53 -0400 Received: from web56707.mail.re3.yahoo.com ([66.196.97.66]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GO795-0005RT-RI for sigtran@ietf.org; Fri, 15 Sep 2006 02:25:53 -0400 Received: (qmail 32361 invoked by uid 60001); 15 Sep 2006 06:25:51 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=r2YXWnwfbypWKXZ7GJySlcs2Ielm/W70k/iqhEBCfuvHRfQ4oiNp2V3nviYm3rN7trfWnMHbWkhnQaJFUECFClVymWQfPsD5+VQI5dxfjYy6mpquFe3ebtjlmVJUcxpGGnBYrvpABpU7B5HQa6ZB34K3Ch5KCwfdlfpHdUuUn88= ; Message-ID: <20060915062551.32359.qmail@web56707.mail.re3.yahoo.com> Received: from [220.227.132.114] by web56707.mail.re3.yahoo.com via HTTP; Thu, 14 Sep 2006 23:25:51 PDT Date: Thu, 14 Sep 2006 23:25:51 -0700 (PDT) From: Padmalochan Moharana Subject: Re: [Sigtran] Re: ASP Active for pending RC To: bidulock@openss7.org, sigtran In-Reply-To: <20060915001734.A11322@openss7.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: cd26b070c2577ac175cd3a6d878c6248 Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi brian, suppose the ASP active contains 5 RCs. But SG responce Active ack with 3 RC .Also not receive error for the rest of the 2 RC then should ASP encode ASP Active for the rest of the 2 RC. --- "Brian F. G. Bidulock" wrote: > Padmalochan, > > Brian F. G. Bidulock wrote: (Fri, 15 Sep > 2006 00:11:54) > > Padmalochan, > > > > Padmalochan Moharana wrote: (Thu, 14 Sep > 2006 22:20:52) > > > Hi Brian, > > > > > > please suggest for the following doubts. > > > > > > 1 - In SUA should ASP encode ASP Active for > pending > > > RCs if no responce is being received for them. > > > > I am not sure what you mean by "pending RCs". > > > > > > > > 2 - Should the state of the ASP change to ACTIVE > if it > > > not received ASP ACTIVE ACK for all the RC > encoded in > > > the ASP ACTIVE message. > > > > The state can change to AS-ACTIVE for the AS for > which > > ASP ACTIVE ACK was received for the associated > RCs. The > > state of AS for which no ASP ACTIVE ACK has been > received > > for the corresponding RCs, can remanin in a state > awaiting > > receipt of an ASP ACTIVE ACK. If a timeout > occurs, the > > ASP can resend ASP ACTIVE with the RC for which no > responding > > ASP ACITVE ACK has yet been received. > > > > Let me put that another way: Sending multiple RCs > in an ASP ACTIVE > (Ack) or ASP INACTIVE (Ack) is really just a > convenience for compacting > multiple messages into one. No relationship between > the RCs contained > in the message is formed by placing them together. > From a state machine > view, one message containing five different RC > values is treated the > same as though 5 messages of the same type were > received each with only > one RC value in it. > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 15 02:38:56 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO7LW-00085j-PL; Fri, 15 Sep 2006 02:38:42 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO7LV-000858-B5 for sigtran@ietf.org; Fri, 15 Sep 2006 02:38:41 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GO7LT-0001Kn-U2 for sigtran@ietf.org; Fri, 15 Sep 2006 02:38:41 -0400 Received: from ns.pigworks.openss7.net (IDENT:x0UWaJINEvMQ1xhC9/sbNc1T+y7k/OnJ@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8F6cdD26184; Fri, 15 Sep 2006 00:38:39 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8F6cdt11604; Fri, 15 Sep 2006 00:38:39 -0600 Date: Fri, 15 Sep 2006 00:38:38 -0600 From: "Brian F. G. Bidulock" To: Padmalochan Moharana Subject: Re: [Sigtran] Re: ASP Active for pending RC Message-ID: <20060915003838.B11322@openss7.org> Mail-Followup-To: Padmalochan Moharana , sigtran References: <20060915001734.A11322@openss7.org> <20060915062551.32359.qmail@web56707.mail.re3.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060915062551.32359.qmail@web56707.mail.re3.yahoo.com>; from moharana_p@yahoo.com on Thu, Sep 14, 2006 at 11:25:51PM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 0bc60ec82efc80c84b8d02f4b0e4de22 Cc: sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Padmalochan, Padmalochan Moharana wrote: (Thu, 14 Sep 2006 23:25:51) > Hi brian, > > suppose the ASP active contains 5 RCs. But SG responce > Active ack with 3 RC .Also not receive error for the > rest of the 2 RC then should ASP encode ASP Active for > the rest of the 2 RC. > Well, think about it. I said they were independent. When the ASP sends ASP Active containing 5 RCs it is no different than sending 5 ASP Active messages each containing one of the RCs. So, if the ASP sends 5 ASP Active messages to the SG and only receives 3 ASP Active Ack messages, for three of the 5 sent message, what does the ASP do with the other two? Well, it can wait for a time and then resend the messages (in which case it could send both RC in the same retry message), or, it could wait indefinitely. Whether multiple RCs are in a message or not has nothing to do with it. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 15 02:41:20 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO7O4-0001Dl-NH; Fri, 15 Sep 2006 02:41:20 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO7O3-0001Cg-Q4 for sigtran@ietf.org; Fri, 15 Sep 2006 02:41:19 -0400 Received: from hostreea1.alcatel.com ([143.209.238.161] helo=audl951.usa.alcatel.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GO7O3-00022w-AK for sigtran@ietf.org; Fri, 15 Sep 2006 02:41:19 -0400 Received: from ssd.usa.alcatel.com (spdmail-qfe1.ssd.usa.alcatel.com [172.22.222.60]) by audl951.usa.alcatel.com (ALCANET) with ESMTP id k8F6fH4v002325; Fri, 15 Sep 2006 01:41:18 -0500 Received: from axes-mach01.usa.alcatel.com (axes-mach01.usa.alcatel.com [10.255.0.20]) by ssd.usa.alcatel.com (8.12.8/8.12.8) with ESMTP id k8F6eMgq013027; Fri, 15 Sep 2006 01:40:23 -0500 (CDT) Received: from [10.255.1.164] (ax-sp-pc112.usa.alcatel.com [10.255.1.164]) by axes-mach01.usa.alcatel.com (8.12.10+Sun/8.12.2) with ESMTP id k8F6jij0005627; Fri, 15 Sep 2006 12:15:45 +0530 (IST) Message-ID: <450A4967.7060409@axes-mach01.usa.alcatel.com> Date: Fri, 15 Sep 2006 12:04:15 +0530 From: Bhanu Prakash User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Padmalochan Moharana Subject: Re: [Sigtran] Re: ASP Active for pending RC References: <20060915062551.32359.qmail@web56707.mail.re3.yahoo.com> In-Reply-To: <20060915062551.32359.qmail@web56707.mail.re3.yahoo.com> X-Scanned-By: MIMEDefang 2.51 on 143.209.238.34 X-Spam-Score: 0.1 (/) X-Scan-Signature: 2b3349545af520ba354ccdc9e1a03fc1 Cc: bidulock@openss7.org, sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0785637586==" Errors-To: sigtran-bounces@ietf.org This is a multi-part message in MIME format. --===============0785637586== Content-Type: multipart/alternative; boundary="------------030509010306080507010507" This is a multi-part message in MIME format. --------------030509010306080507010507 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit <>Padmalochan, The ASP state will not change to ACTIVE untill the ASP ACTIVE ACK has been received for the corresponding RCs. Regards, Bhanu. Padmalochan Moharana wrote: >Hi brian, > >suppose the ASP active contains 5 RCs. But SG responce >Active ack with 3 RC .Also not receive error for the >rest of the 2 RC then should ASP encode ASP Active for >the rest of the 2 RC. > > > >--- "Brian F. G. Bidulock" >wrote: > > > >>Padmalochan, >> >>Brian F. G. Bidulock wrote: (Fri, 15 Sep >>2006 00:11:54) >> >> >>>Padmalochan, >>> >>>Padmalochan Moharana wrote: (Thu, 14 Sep >>> >>> >>2006 22:20:52) >> >> >>>>Hi Brian, >>>> >>>>please suggest for the following doubts. >>>> >>>>1 - In SUA should ASP encode ASP Active for >>>> >>>> >>pending >> >> >>>>RCs if no responce is being received for them. >>>> >>>> >>>I am not sure what you mean by "pending RCs". >>> >>> >>> >>>>2 - Should the state of the ASP change to ACTIVE >>>> >>>> >>if it >> >> >>>>not received ASP ACTIVE ACK for all the RC >>>> >>>> >>encoded in >> >> >>>>the ASP ACTIVE message. >>>> >>>> >>>The state can change to AS-ACTIVE for the AS for >>> >>> >>which >> >> >>>ASP ACTIVE ACK was received for the associated >>> >>> >>RCs. The >> >> >>>state of AS for which no ASP ACTIVE ACK has been >>> >>> >>received >> >> >>>for the corresponding RCs, can remanin in a state >>> >>> >>awaiting >> >> >>>receipt of an ASP ACTIVE ACK. If a timeout >>> >>> >>occurs, the >> >> >>>ASP can resend ASP ACTIVE with the RC for which no >>> >>> >>responding >> >> >>>ASP ACITVE ACK has yet been received. >>> >>> >>> >>Let me put that another way: Sending multiple RCs >>in an ASP ACTIVE >>(Ack) or ASP INACTIVE (Ack) is really just a >>convenience for compacting >>multiple messages into one. No relationship between >>the RCs contained >>in the message is formed by placing them together. >>From a state machine >>view, one message containing five different RC >>values is treated the >>same as though 5 messages of the same type were >>received each with only >>one RC value in it. >> >>--brian >> >>-- >>Brian F. G. Bidulock >>bidulock@openss7.org >>http://www.openss7.org/ >> >> >> > > >__________________________________________________ >Do You Yahoo!? >Tired of spam? Yahoo! Mail has the best spam protection around >http://mail.yahoo.com > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > > > > --------------030509010306080507010507 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit <>Padmalochan,

The ASP state will not change to ACTIVE untill the ASP ACTIVE ACK
has been received for the corresponding RCs.

Regards,
Bhanu.

Padmalochan Moharana wrote:

Hi brian,

suppose the ASP active contains 5 RCs. But SG responce
Active ack with 3 RC .Also not receive error for the
rest of the 2 RC then should ASP encode ASP Active for
the rest of the 2 RC.



--- "Brian F. G. Bidulock" <bidulock@openss7.org>
wrote:

  
Padmalochan,

Brian F. G. Bidulock wrote:            (Fri, 15 Sep
2006 00:11:54)
    
Padmalochan,

Padmalochan Moharana wrote:          (Thu, 14 Sep
      
2006 22:20:52)
    
Hi Brian,

please suggest for the following doubts.

1 - In SUA should ASP encode ASP Active for
        
pending
    
RCs if no responce is being received for them.
        
I am not sure what you mean by "pending RCs".

      
2 - Should the state of the ASP change to ACTIVE
        
if it
    
not received ASP ACTIVE ACK  for all the RC
        
encoded in
    
the ASP ACTIVE message.
        
The state can change to AS-ACTIVE for the AS for
      
which
    
ASP ACTIVE ACK was received for the associated
      
RCs.  The
    
state of AS for which no ASP ACTIVE ACK has been
      
received
    
for the corresponding RCs, can remanin in a state
      
awaiting
    
receipt of an ASP ACTIVE ACK.  If a timeout
      
occurs, the
    
ASP can resend ASP ACTIVE with the RC for which no
      
responding
    
ASP ACITVE ACK has yet been received.

      
Let me put that another way:  Sending multiple RCs
in an ASP ACTIVE
(Ack) or ASP INACTIVE (Ack) is really just a
convenience for compacting
multiple messages into one.  No relationship between
the RCs contained
in the message is formed by placing them together. 
>From a state machine
view, one message containing five different RC
values is treated the
same as though 5 messages of the same type were
received each with only
one RC value in it.

--brian

-- 
Brian F. G. Bidulock
bidulock@openss7.org
http://www.openss7.org/

    


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 

_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran


  

--------------030509010306080507010507-- --===============0785637586== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0785637586==-- From sigtran-bounces@ietf.org Fri Sep 15 02:55:34 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO7bd-0005bc-4v; Fri, 15 Sep 2006 02:55:21 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GO7bc-0005bX-11 for sigtran@ietf.org; Fri, 15 Sep 2006 02:55:20 -0400 Received: from web37407.mail.mud.yahoo.com ([209.191.91.139]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GO7ba-0004QE-7C for sigtran@ietf.org; Fri, 15 Sep 2006 02:55:19 -0400 Received: (qmail 14794 invoked by uid 60001); 15 Sep 2006 06:55:17 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=t40KoEHPekQ1yL6gfLUy5CpiGLNQAEsgdb4gSPuj38NaUFIkthksd5GCYP6j2LPI2O4wZSqsVUa5xJRCSzY3IL/T+Ln27473jxYuBc+DIGuopxy68ZpWlPKpFjdMWmGjjFTbtA3N/Fk9IyFJdzYvkKGhVJc2kvFkB6Gpohv2aCo= ; Message-ID: <20060915065517.14792.qmail@web37407.mail.mud.yahoo.com> Received: from [203.145.132.252] by web37407.mail.mud.yahoo.com via HTTP; Thu, 14 Sep 2006 23:55:17 PDT Date: Thu, 14 Sep 2006 23:55:17 -0700 (PDT) From: ash kat Subject: Re: [Sigtran] Fwd: Re: SCTP data message handling To: Saraswati Bose , sigtran In-Reply-To: <20060914124826.94764.qmail@web54002.mail.yahoo.com> MIME-Version: 1.0 X-Spam-Score: 1.2 (+) X-Scan-Signature: 31247fb3be228bb596db9127becad0bc Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0341263884==" Errors-To: sigtran-bounces@ietf.org --===============0341263884== Content-Type: multipart/alternative; boundary="0-2005595641-1158303317=:11944" Content-Transfer-Encoding: 8bit --0-2005595641-1158303317=:11944 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi Saraswati IMO If Side B has to send User data greater then a_rwnd of peer then 1. The SCTP should discard the data only in one case when it is not able to fragment the data to less than PMTU size configured. [ i.e fragmentation is not allowed ] 2. Otherwise it should send the data to peer, but peer will drop the DATA as no buffers are available to receive that DATA, However the peer SCTP will send the SACK containing TSN of the last data chunk successfully received and also the updated receiver window. SCTP will keep on retransmitting that DATA chunk until it receives SACK for "that" DATA chunk. If PMTU size is configured to 1500 [ for ethernet] then your case lies in the first scenario, hence the SCTP should discard the data and give proper error to the user. --Ashwani kathuria FSS India Saraswati Bose wrote: Note: forwarded message attached. --------------------------------- Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1¢/min.Date: Thu, 14 Sep 2006 05:45:46 -0700 (PDT) From: Saraswati Bose Subject: Re: SCTP data message handling To: bidulock@openss7.org Hi Brian, It seems I am not understood properly. I wanted to know in case SCTP endpoint A receives ulp data of size greater than the ARWND value of its peer (say Endpoint B) and and suppose that fragmentation/bundling is not supported by endpoint A, should A reject the data or not? If not then should endpoint B reject the data? Regards, Saraswati "Brian F. G. Bidulock" wrote: Saraswati, Saraswati Bose wrote: (Thu, 14 Sep 2006 04:22:41) > > SCTP-A SCTP-B > > ARWND==4000 If the MTU greater than 5000, SWS Avoidance dictates that SCTP-A either advertize 1 MTU or zero. SCTP-B after SWS Avoidance should either treat this as 1 MTU or zero also. Nevertheless, the other reponse is correct: you can always have one MTU in flight. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ --------------------------------- Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail._______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --------------------------------- Want to be your own boss? Learn how on Yahoo! Small Business. --0-2005595641-1158303317=:11944 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit
Hi Saraswati
IMO If Side B has to send User data greater then a_rwnd of peer then
 
1. The SCTP should discard the data only in one case when it is not able to fragment the data to less than PMTU size configured. [ i.e fragmentation is not allowed ]
 
2. Otherwise it should send the data to peer, but peer will drop the DATA as no buffers are available to receive that DATA, However the peer SCTP will send the SACK containing TSN of the last data chunk successfully received and also the updated receiver window.
SCTP will keep on retransmitting that DATA chunk until it receives SACK for "that" DATA chunk.
 
If PMTU size is configured to 1500 [ for ethernet] then your case lies in the first scenario, hence the SCTP should discard the data and give proper error to the user.
 
--Ashwani kathuria
  FSS India

Saraswati Bose <saraswatibose@yahoo.com> wrote:


Note: forwarded message attached.

Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1¢/min.Date: Thu, 14 Sep 2006 05:45:46 -0700 (PDT)
From: Saraswati Bose <saraswatibose@yahoo.com>
Subject: Re: SCTP data message handling
To: bidulock@openss7.org

Hi Brian,
It seems I am not understood properly.
I wanted to know in case SCTP endpoint A receives ulp data of size greater than the ARWND value of its peer (say Endpoint B) and and suppose that fragmentation/bundling is not supported by endpoint A, should A reject the data or not?
 
If not then should endpoint B reject the data?
 
Regards,
Saraswati
"Brian F. G. Bidulock" <bidulock@openss7.org> wrote:
Saraswati,

Saraswati Bose wrote: (Thu, 14 Sep 2006 04:22:41)
>
> SCTP-A SCTP-B
>
> ARWND==4000

If the MTU greater than 5000, SWS Avoidance dictates that SCTP-A either
advertize 1 MTU or zero. SCTP-B after SWS Avoidance should either treat
this as 1 MTU or zero also.

Nevertheless, the other reponse is correct: you can always have one MTU
in flight.

--brian

--
Brian F. G. Bidulock
bidulock@openss7.org
http://www.openss7.org/


Do you Yahoo!?
Everyone is raving about the
all-new Yahoo! Mail._______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran


Want to be your own boss? Learn how on Yahoo! Small Business. --0-2005595641-1158303317=:11944-- --===============0341263884== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0341263884==-- From sigtran-bounces@ietf.org Fri Sep 15 09:57:23 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GOEBb-0003GV-JR; Fri, 15 Sep 2006 09:56:55 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GOEBa-0003G9-OL for sigtran@ietf.org; Fri, 15 Sep 2006 09:56:54 -0400 Received: from web56712.mail.re3.yahoo.com ([66.196.97.71]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GOEBY-0003qt-7F for sigtran@ietf.org; Fri, 15 Sep 2006 09:56:54 -0400 Received: (qmail 64486 invoked by uid 60001); 15 Sep 2006 13:56:47 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=ho2wlOCL+jOmyiW2zZ+avP6MSUrRYHZjR3G1UVG/L2BOi4ANKQgxKmqKulPoXMcNToAp8hdTyawXuP+72Wk9Zvh8Xfmnv0UYXWCBdpXhr/JLWvrPO0UsMFdGGJg2Vn/6l2HynSK4u5v+GNgbqvLR/R1+1un25XPBZYwNnH/HO78= ; Message-ID: <20060915135647.64484.qmail@web56712.mail.re3.yahoo.com> Received: from [220.227.132.114] by web56712.mail.re3.yahoo.com via HTTP; Fri, 15 Sep 2006 06:56:46 PDT Date: Fri, 15 Sep 2006 06:56:46 -0700 (PDT) From: Padmalochan Moharana To: bidulock , sigtran In-Reply-To: <20060915001154.A11188@openss7.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: 79899194edc4f33a41f49410777972f8 Cc: Subject: [Sigtran] ASP message with Traffic mode type in M3UA X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi Brian, please suggest for the following doubts. 1 - As per the RFC3332 (m3ua) the traffic mode is optional parameter.Should server response error on receiving ASP ACTIVE or REG REQ message without traffic mode? 2- What should be the defult traffic mode if server not receive traffic mode in the ASP active or REG REQ message. Regards, Padmalochan __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 15 10:18:57 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GOEWl-0003I2-N4; Fri, 15 Sep 2006 10:18:47 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GOEWk-0003Hx-Or for sigtran@ietf.org; Fri, 15 Sep 2006 10:18:46 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GOEWj-0008A9-C9 for sigtran@ietf.org; Fri, 15 Sep 2006 10:18:46 -0400 Received: from ns.pigworks.openss7.net (IDENT:PlmW/o/a4CNlOTeptBFiG6HaFIPslBl/@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8FEIiD04953; Fri, 15 Sep 2006 08:18:44 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8FEIik20133; Fri, 15 Sep 2006 08:18:44 -0600 Date: Fri, 15 Sep 2006 08:18:44 -0600 From: "Brian F. G. Bidulock" To: Padmalochan Moharana Message-ID: <20060915081844.A20073@openss7.org> Mail-Followup-To: Padmalochan Moharana , sigtran References: <20060915001154.A11188@openss7.org> <20060915135647.64484.qmail@web56712.mail.re3.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060915135647.64484.qmail@web56712.mail.re3.yahoo.com>; from moharana_p@yahoo.com on Fri, Sep 15, 2006 at 06:56:46AM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: ea4ac80f790299f943f0a53be7e1a21a Cc: sigtran Subject: [Sigtran] Re: ASP message with Traffic mode type in M3UA X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Padmalochan, Padmalochan Moharana wrote: (Fri, 15 Sep 2006 06:56:46) > Hi Brian, > please suggest for the following doubts. > > 1 - As per the RFC3332 (m3ua) the traffic mode is > optional parameter.Should server response error on > receiving ASP ACTIVE or REG REQ message without > traffic mode? Did you think it was an error to not do something that is optional? > > 2- What should be the defult traffic mode if server > not receive traffic mode in the ASP active or REG REQ > message. What do you thinK? I think you really need to read the traffic management section of the RFC again. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Wed Sep 20 19:44:13 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQBif-00023y-3s; Wed, 20 Sep 2006 19:43:09 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQBic-000236-1r; Wed, 20 Sep 2006 19:43:06 -0400 Received: from nit.isi.edu ([128.9.160.116]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQBia-00059l-MO; Wed, 20 Sep 2006 19:43:06 -0400 Received: from nit.isi.edu (loopback [127.0.0.1]) by nit.isi.edu (8.12.11.20060308/8.12.11) with ESMTP id k8KNh4xK029253; Wed, 20 Sep 2006 16:43:04 -0700 Received: (from apache@localhost) by nit.isi.edu (8.12.11.20060308/8.12.11/Submit) id k8KNh46K029252; Wed, 20 Sep 2006 16:43:04 -0700 Date: Wed, 20 Sep 2006 16:43:04 -0700 Message-Id: <200609202343.k8KNh46K029252@nit.isi.edu> To: ietf-announce@ietf.org, rfc-dist@rfc-editor.org From: rfc-editor@rfc-editor.org X-Spam-Score: -14.8 (--------------) X-Scan-Signature: bdc523f9a54890b8a30dd6fd53d5d024 Cc: sigtran@ietf.org, rfc-editor@rfc-editor.org Subject: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA) X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org A new Request for Comments is now available in online RFC libraries. RFC 4666 Title: Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA) Author: K. Morneault, Ed., J. Pastor-Balbas, Ed. Status: Standards Track Date: September 2006 Mailbox: kmorneau@cisco.com, j.javier.pastor@ericsson.com Pages: 124 Characters: 292991 Obsoletes: RFC3332 See-Also: I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt URL: http://www.rfc-editor.org/rfc/rfc4666.txt This memo defines a protocol for supporting the transport of any SS7 MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the services of the Stream Control Transmission Protocol. Also, provision is made for protocol elements that enable a seamless operation of the MTP3-User peers in the SS7 and IP domains. This protocol would be used between a Signalling Gateway (SG) and a Media Gateway Controller (MGC) or IP-resident Database, or between two IP-based applications. It is assumed that the SG receives SS7 signalling over a standard SS7 interface using the SS7 Message Transfer Part (MTP) to provide transport. This document obsoletes RFC 3332. [STANDARDS TRACK] This document is a product of the Signaling Transport Working Group of the IETF. This is now a Proposed Standard Protocol. STANDARDS TRACK: This document specifies an Internet standards track protocol for the Internet community,and requests discussion and suggestions for improvements.Please refer to the current edition of the Internet Official Protocol Standards (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF list and the RFC-DIST list. Requests to be added to or deleted from the IETF distribution list should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or deleted from the RFC-DIST distribution list should be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG. Details on obtaining RFCs via FTP or EMAIL may be obtained by sending an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body help: ways_to_get_rfcs. For example: To: rfc-info@RFC-EDITOR.ORG Subject: getting rfcs help: ways_to_get_rfcs Requests for special distribution should be addressed to either the author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. Submissions for Requests for Comments should be sent to RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC Authors, for further information. Joyce K. Reynolds and Sandy Ginoza USC/Information Sciences Institute ... _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 03:31:09 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQJ0W-00013u-Q2; Thu, 21 Sep 2006 03:30:04 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQJ0V-00013i-2Z for sigtran@ietf.org; Thu, 21 Sep 2006 03:30:03 -0400 Received: from web54002.mail.yahoo.com ([206.190.36.226]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GQJ0P-0001Mu-IU for sigtran@ietf.org; Thu, 21 Sep 2006 03:30:03 -0400 Received: (qmail 71920 invoked by uid 60001); 21 Sep 2006 07:29:57 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=EOUuE/K/qAhK99oOjtAudve90FwVjpkx69H5mtlfXSmcjg7ulPevtylio5PcJBYFdbd0REJJ3P1dNI/CzpqyrU7VOt9zayiVWWKqfIj+Jv6fApX9RMZXBGru8iHQ1/AZ5UGdMQreqAzLMP1HiIGmR7r8iALWtkpi4t4jAVxqixM= ; Message-ID: <20060921072957.71918.qmail@web54002.mail.yahoo.com> Received: from [220.227.132.114] by web54002.mail.yahoo.com via HTTP; Thu, 21 Sep 2006 00:29:57 PDT Date: Thu, 21 Sep 2006 00:29:57 -0700 (PDT) From: Saraswati Bose To: Brian Bidulock , sigtran MIME-Version: 1.0 X-Spam-Score: 0.1 (/) X-Scan-Signature: ffa9dfbbe7cc58b3fa6b8ae3e57b0aa3 Cc: Subject: [Sigtran] Default Traffic Mode X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1296977160==" Errors-To: sigtran-bounces@ietf.org --===============1296977160== Content-Type: multipart/alternative; boundary="0-298077943-1158823797=:66316" Content-Transfer-Encoding: 8bit --0-298077943-1158823797=:66316 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi Brian, Please suggest in the below scenarios. 1. In case optional traffic mode parameter is not configured in SG then should it assign the traffic mode received in aspac message to the sender ASP? 2. In case asp misses the optional traffic mode in ASPAC message then should sg assign the traffic mode configured for the asp at its local end? 3. What if the optional traffic mode is not confgiured at either ends then what should be the default traffic mode? Regards, Saraswati --------------------------------- Stay in the know. Pulse on the new Yahoo.com. Check it out. --0-298077943-1158823797=:66316 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit
Hi Brian,
Please suggest in the below scenarios.
1. In case optional traffic mode parameter is not configured in SG then should it assign the traffic mode received in aspac message to the sender ASP?
 
2. In case asp misses the optional traffic mode in ASPAC message then should sg assign the traffic mode configured for the asp at its local end?
 
3. What if the optional traffic mode is not confgiured at either ends then what should be the default traffic mode?
 
Regards,
Saraswati


Stay in the know. Pulse on the new Yahoo.com. Check it out. --0-298077943-1158823797=:66316-- --===============1296977160== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============1296977160==-- From sigtran-bounces@ietf.org Thu Sep 21 03:46:40 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQJGO-0001sG-As; Thu, 21 Sep 2006 03:46:28 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQJGM-0001oU-MU for sigtran@ietf.org; Thu, 21 Sep 2006 03:46:26 -0400 Received: from web56709.mail.re3.yahoo.com ([66.196.97.68]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GQJFw-0004zl-5B for sigtran@ietf.org; Thu, 21 Sep 2006 03:46:04 -0400 Received: (qmail 73179 invoked by uid 60001); 21 Sep 2006 07:45:51 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=rTu7qRg+oTRtNG6iPB1IegaQlze45UnS9grhPhhM+zvzMaKuXDWvM4nRS7WMpfiJjPYq39078IFB2TbegPC8i8TnFbWIyF13E60JShBGLDcjASDgAV4xRX83h+dMAVJ0jzOkNE+501DyAwjdKAFaJMEwWatoj1YnKatnA3Uxm8g= ; Message-ID: <20060921074551.73177.qmail@web56709.mail.re3.yahoo.com> Received: from [220.227.132.114] by web56709.mail.re3.yahoo.com via HTTP; Thu, 21 Sep 2006 00:45:51 PDT Date: Thu, 21 Sep 2006 00:45:51 -0700 (PDT) From: Padmalochan Moharana To: sigtran , bidulock MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: 9182cfff02fae4f1b6e9349e01d62f32 Cc: Subject: [Sigtran] Regarding Traffic mode in ASPTM message. X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi Brian, please suggest me about following doubt regarding Traffic mode. 1-Should traffic mode is treated as mandatory if the traffic mode is other than Override. 2- if SG receive the ASP_ACTIVE without traffic mode parameter should SG consider it as Override. Or else send error against it if SG has different value configured. Regards, Padmalochan. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 04:35:28 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQK0g-0003QS-D3; Thu, 21 Sep 2006 04:34:18 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQK0e-0003O3-Df for sigtran@ietf.org; Thu, 21 Sep 2006 04:34:16 -0400 Received: from mx01.kapsch.net ([148.198.2.16]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQK0V-0007Bu-Ej for sigtran@ietf.org; Thu, 21 Sep 2006 04:34:16 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Subject: AW: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 10:33:42 +0200 Message-ID: In-Reply-To: <200609202343.k8KNh46K029252@nit.isi.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Thread-Index: AcbdDutB8i+1Z4huRXKDovnNxglW7gASRccw From: "Sedlak Michael" To: X-OriginalArrivalTime: 21 Sep 2006 08:33:44.0957 (UTC) FILETIME=[A6A8AAD0:01C6DD58] X-Spam-Score: 0.0 (/) X-Scan-Signature: e1e48a527f609d1be2bc8d8a70eb76cb X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi, Is there a delta-list between RFC3332 and RFC4666 ? Best regards, Michael=20 -----Urspr=FCngliche Nachricht----- Von: rfc-editor@rfc-editor.org [mailto:rfc-editor@rfc-editor.org]=20 A new Request for Comments is now available in online RFC libraries. =20 RFC 4666 Title: Signaling System 7 (SS7) Message=20 Transfer Part 3 (MTP3) - User=20 Adaptation Layer (M3UA)=20 Author: K. Morneault, Ed., J. Pastor-Balbas, Ed. Status: Standards Track Date: September 2006 Mailbox: kmorneau@cisco.com,=20 j.javier.pastor@ericsson.com Pages: 124 Characters: 292991 Obsoletes: RFC3332 See-Also: =20 I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt URL: http://www.rfc-editor.org/rfc/rfc4666.txt The information contained in this e-mail message is privileged and confidential and is for the exclusive use of the addressee. The person who receives this message and who is not the addressee, one of his employees or an agent entitled to hand it over to the addressee, is informed that he may not use, disclose or reproduce the contents thereof. _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 04:51:55 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKHE-0002lJ-EN; Thu, 21 Sep 2006 04:51:24 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKHE-0002lE-0R for sigtran@ietf.org; Thu, 21 Sep 2006 04:51:24 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQKH9-0001QM-Hs for sigtran@ietf.org; Thu, 21 Sep 2006 04:51:23 -0400 Received: from ns.pigworks.openss7.net (IDENT:M86du+Vx8fflLcuZVdEubOnQ93EP+Mq3@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8L8pID15748; Thu, 21 Sep 2006 02:51:18 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8L8pIn23672; Thu, 21 Sep 2006 02:51:18 -0600 Date: Thu, 21 Sep 2006 02:51:18 -0600 From: "Brian F. G. Bidulock" To: Saraswati Bose Message-ID: <20060921025117.A23147@openss7.org> Mail-Followup-To: Saraswati Bose , sigtran References: <20060921072957.71918.qmail@web54002.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060921072957.71918.qmail@web54002.mail.yahoo.com>; from saraswatibose@yahoo.com on Thu, Sep 21, 2006 at 12:29:57AM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 9ed51c9d1356100bce94f1ae4ec616a9 Cc: sigtran Subject: [Sigtran] Re: Default Traffic Mode X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Saraswati, Saraswati Bose wrote: (Thu, 21 Sep 2006 00:29:57) > > Hi Brian, > > Please suggest in the below scenarios. > > 1. In case optional traffic mode parameter is not configured in SG > then should it assign the traffic mode received in aspac message to > the sender ASP? Why not? If it is configured to do so... > 2. In case asp misses the optional traffic mode in ASPAC message then > should sg assign the traffic mode configured for the asp at its local > end? Yes, if it is configured at the SG. > 3. What if the optional traffic mode is not confgiured at either ends > then what should be the default traffic mode? None. The SG should send an error if it is not configured for a traffic mode and it does not receive one in the ASP Active. The reason being that the SG could start sending traffic (and perhaps large quantities) the moment the ASP Active Ack is returned. The ASP will not have time to examine the TM in the ASP Active Ack before it is potentially bombarded with traffic of the wrong traffic mode. As a general rule for interoperability, always send TM in ASP Active and always configure TM at both the SG and ASP. The SG should always send the TM in the ASP Active Ack, even if it was not provided in the ASP Active so that misconfiguration at both ends can be more easily detected. That's my thoughts. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 04:52:57 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKIj-0003QS-8y; Thu, 21 Sep 2006 04:52:57 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKIi-0003PD-D9 for sigtran@ietf.org; Thu, 21 Sep 2006 04:52:56 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQKId-0001Uf-Vj for sigtran@ietf.org; Thu, 21 Sep 2006 04:52:56 -0400 Received: from ns.pigworks.openss7.net (IDENT:J3Cbizw8Ur7m84ZBecpJfgoVHBJQhBld@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8L8qpD15764; Thu, 21 Sep 2006 02:52:51 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8L8qpQ23696; Thu, 21 Sep 2006 02:52:51 -0600 Date: Thu, 21 Sep 2006 02:52:50 -0600 From: "Brian F. G. Bidulock" To: Padmalochan Moharana Message-ID: <20060921025250.B23147@openss7.org> Mail-Followup-To: Padmalochan Moharana , sigtran References: <20060921074551.73177.qmail@web56709.mail.re3.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060921074551.73177.qmail@web56709.mail.re3.yahoo.com>; from moharana_p@yahoo.com on Thu, Sep 21, 2006 at 12:45:51AM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 798b2e660f1819ae38035ac1d8d5e3ab Cc: sigtran Subject: [Sigtran] Re: Regarding Traffic mode in ASPTM message. X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Padmalochan, Padmalochan Moharana wrote: (Thu, 21 Sep 2006 00:45:51) > > 1-Should traffic mode is treated as mandatory if the > traffic mode is other than Override. No. > 2- if SG receive the ASP_ACTIVE without traffic mode > parameter should SG consider it as Override. Or else > send error against it if SG has different value > configured. No and No. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 04:59:27 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKOt-0000oO-CH; Thu, 21 Sep 2006 04:59:19 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKOr-0000oB-9I for sigtran@ietf.org; Thu, 21 Sep 2006 04:59:17 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQKOm-0001qD-S1 for sigtran@ietf.org; Thu, 21 Sep 2006 04:59:17 -0400 Received: from ns.pigworks.openss7.net (IDENT:i7ON0ndgtT9VV2nuG6NmcxwSrzvhXBEP@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8L8xBD15897; Thu, 21 Sep 2006 02:59:12 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8L8xBU23839; Thu, 21 Sep 2006 02:59:11 -0600 Date: Thu, 21 Sep 2006 02:59:11 -0600 From: "Brian F. G. Bidulock" To: Sedlak Michael Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921025911.C23147@openss7.org> Mail-Followup-To: Sedlak Michael , sigtran@ietf.org References: <200609202343.k8KNh46K029252@nit.isi.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from michael.sedlak@kapsch.net on Thu, Sep 21, 2006 at 10:33:42AM +0200 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 856eb5f76e7a34990d1d457d8e8e5b7f Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Sedlak, Sedlak Michael wrote: (Thu, 21 Sep 2006 10:33:42) > > Is there a delta-list between RFC3332 and RFC4666 ? > ;) Yes, its: draft-ietf-sigtran-m3ua-implementors-guide-07.txt --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 05:04:20 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKTQ-0002HT-EU; Thu, 21 Sep 2006 05:04:00 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKTP-0002HL-Lm; Thu, 21 Sep 2006 05:03:59 -0400 Received: from hostreea2.alcatel.com ([143.209.238.162] helo=audl953.usa.alcatel.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQKTL-000247-7w; Thu, 21 Sep 2006 05:03:59 -0400 Received: from ssd.usa.alcatel.com (spdmail-qfe1.ssd.usa.alcatel.com [172.22.222.60]) by audl953.usa.alcatel.com (ALCANET) with ESMTP id k8L93k6C008531; Thu, 21 Sep 2006 04:03:54 -0500 Received: from axes-mach01.usa.alcatel.com (axes-mach01.usa.alcatel.com [10.255.0.20]) by ssd.usa.alcatel.com (8.12.8/8.12.8) with ESMTP id k8L930gq019508; Thu, 21 Sep 2006 04:03:01 -0500 (CDT) Received: from [10.255.1.77] (ax-sp-pc27.usa.alcatel.com [10.255.1.77]) by axes-mach01.usa.alcatel.com (8.12.10+Sun/8.12.2) with ESMTP id k8L98Rj0022968; Thu, 21 Sep 2006 14:38:27 +0530 (IST) Message-ID: <451255A7.2050800@axes-mach01.usa.alcatel.com> Date: Thu, 21 Sep 2006 14:34:39 +0530 From: Satya Prasad Nemana Organization: Tech Mahindra R&D Services, 9/7 Hosur Road, Bangalore-560029 Ph :25539232/33 Extn 1243 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: rfc-editor@rfc-editor.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA) References: <200609202343.k8KNh46K029252@nit.isi.edu> In-Reply-To: <200609202343.k8KNh46K029252@nit.isi.edu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.51 on 143.209.238.34 X-Spam-Score: 0.0 (/) X-Scan-Signature: a87a9cdae4ac5d3fbeee75cd0026d632 Cc: sigtran@ietf.org, rfc-dist@rfc-editor.org, ietf-announce@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Satya_Prasad.Nemana@alcatel.com List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org A general comment on ASP failover cases, M3UA does not have any method of doing retrieval /retranamission Although SCTP does have the capability through multi homing, the ULP should have the request in place to do the retrieval/retransmission In the case of a single AS having only a single ASP configured, there is no chance of retrieval (but this is the most rare configuration as networks are configured not to go down with a single point of failure) In case the AS is configured with two ASPs and each having a different SCTP assoc with a single path in each of the assoc.. there is no chance of message retrieval... as per the current rfc. No idea if this was not felt important in a telecom network!! rfc-editor@rfc-editor.org wrote: >A new Request for Comments is now available in online RFC libraries. > > > RFC 4666 > > Title: Signaling System 7 (SS7) Message > Transfer Part 3 (MTP3) - User > Adaptation Layer (M3UA) > Author: K. Morneault, Ed., > J. Pastor-Balbas, Ed. > Status: Standards Track > Date: September 2006 > Mailbox: kmorneau@cisco.com, > j.javier.pastor@ericsson.com > Pages: 124 > Characters: 292991 > Obsoletes: RFC3332 > See-Also: > > I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt > > URL: http://www.rfc-editor.org/rfc/rfc4666.txt > >This memo defines a protocol for supporting the transport of any SS7 >MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the >services of the Stream Control Transmission Protocol. Also, >provision is made for protocol elements that enable a seamless >operation of the MTP3-User peers in the SS7 and IP domains. This >protocol would be used between a Signalling Gateway (SG) and a Media >Gateway Controller (MGC) or IP-resident Database, or between two >IP-based applications. It is assumed that the SG receives SS7 >signalling over a standard SS7 interface using the SS7 Message >Transfer Part (MTP) to provide transport. This document obsoletes >RFC 3332. [STANDARDS TRACK] > >This document is a product of the Signaling Transport >Working Group of the IETF. > >This is now a Proposed Standard Protocol. > >STANDARDS TRACK: This document specifies an Internet standards track >protocol for the Internet community,and requests discussion and >suggestions for improvements.Please refer to the current edition of the >Internet Official Protocol Standards (STD 1) for the standardization >state and status of this protocol. Distribution of this memo is >unlimited. > >This announcement is sent to the IETF list and the RFC-DIST list. >Requests to be added to or deleted from the IETF distribution list >should be sent to IETF-REQUEST@IETF.ORG. Requests to be >added to or deleted from the RFC-DIST distribution list should >be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG. > >Details on obtaining RFCs via FTP or EMAIL may be obtained by sending >an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body > >help: ways_to_get_rfcs. For example: > > To: rfc-info@RFC-EDITOR.ORG > Subject: getting rfcs > > help: ways_to_get_rfcs > >Requests for special distribution should be addressed to either the >author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless >specifically noted otherwise on the RFC itself, all RFCs are for >unlimited distribution. > >Submissions for Requests for Comments should be sent to >RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC >Authors, for further information. > > >Joyce K. Reynolds and Sandy Ginoza >USC/Information Sciences Institute > >... > > > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > > > > _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 05:12:19 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKb9-0006bO-Nu; Thu, 21 Sep 2006 05:11:59 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKb8-0006bG-Ug; Thu, 21 Sep 2006 05:11:58 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQKb4-0002mN-GB; Thu, 21 Sep 2006 05:11:58 -0400 Received: from ns.pigworks.openss7.net (IDENT:HXqXOf9f8OecYQNIQkUwaNKJZUgCBpKc@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8L9BrD16312; Thu, 21 Sep 2006 03:11:53 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8L9Brw24299; Thu, 21 Sep 2006 03:11:53 -0600 Date: Thu, 21 Sep 2006 03:11:53 -0600 From: "Brian F. G. Bidulock" To: Satya Prasad Nemana Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921031153.D23147@openss7.org> Mail-Followup-To: Satya Prasad Nemana , rfc-editor@rfc-editor.org, sigtran@ietf.org, rfc-dist@rfc-editor.org, ietf-announce@ietf.org References: <200609202343.k8KNh46K029252@nit.isi.edu> <451255A7.2050800@axes-mach01.usa.alcatel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <451255A7.2050800@axes-mach01.usa.alcatel.com>; from SatyaPrasad@axes-mach01.usa.alcatel.com on Thu, Sep 21, 2006 at 02:34:39PM +0530 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: de4f315c9369b71d7dd5909b42224370 Cc: rfc-dist@rfc-editor.org, sigtran@ietf.org, ietf-announce@ietf.org, rfc-editor@rfc-editor.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Satya, Satya Prasad Nemana wrote: (Thu, 21 Sep 2006 14:34:39) > > No idea if this was not felt important in a telecom network!! If you feel its important you might consider supporting, or at least commenting on: http://www.ietf.org/internet-drafts/draft-bidulock-sigtran-corid-04.txt --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 05:30:16 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKsi-0007KK-DE; Thu, 21 Sep 2006 05:30:08 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQKsh-0007KC-Ct for sigtran@ietf.org; Thu, 21 Sep 2006 05:30:07 -0400 Received: from stsc1260-eth-s1-s1p1-vip.va.neustar.com ([156.154.16.129] helo=chiedprmail1.ietf.org) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQKsh-0004zy-AM for sigtran@ietf.org; Thu, 21 Sep 2006 05:30:07 -0400 Received: from py-out-1112.google.com ([64.233.166.176]) by chiedprmail1.ietf.org with esmtp (Exim 4.43) id 1GQKsg-0006kf-UM for sigtran@ietf.org; Thu, 21 Sep 2006 05:30:07 -0400 Received: by py-out-1112.google.com with SMTP id m51so641157pye for ; Thu, 21 Sep 2006 02:29:04 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type; b=spFi6OOqi/7Az/BNPOIFCsjF7HM4lyPNlHfnhj5w3AP0a7cDRTg1uHM5dS3IK8hMMaw5FDGTW/Lo/VYW/3QD0dfliCRDLQSSn6v964/bF1Spdk3oOuYRzLnVnwmolUvXDS16DR6i6MUAX4IStSwUfa06dsVftVBvLWqpsAKCoOY= Received: by 10.65.73.16 with SMTP id a16mr21347615qbl; Thu, 21 Sep 2006 02:29:04 -0700 (PDT) Received: by 10.65.54.18 with HTTP; Thu, 21 Sep 2006 02:29:04 -0700 (PDT) Message-ID: <279c411a0609210229s33ba52d1xb9d446e8cae849d3@mail.gmail.com> Date: Thu, 21 Sep 2006 10:29:04 +0100 From: Ramma To: "Brian Bidulock" , sigtran MIME-Version: 1.0 X-Spam-Score: 0.3 (/) X-Scan-Signature: 7aafa0432175920a4b3e118e16c5cb64 Cc: Subject: [Sigtran] Traffiic Mode : Help Please X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0351098219==" Errors-To: sigtran-bounces@ietf.org --===============0351098219== Content-Type: multipart/alternative; boundary="----=_Part_2677_16108357.1158830944162" ------=_Part_2677_16108357.1158830944162 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi I am trying to configure 2 AS to talk in IPSP: IPSP mode. I am having trouble with the traffic mode. Can anyone please help me out. I dont know what am I do doing wrong exactly. Local AS (One ASP) My AS traffic mode : Override Peer AS traffic mode : Loadshare Remote AS (two ASPs) My AS traffic mode : Loadshare Peer AS traffic mode: Override I have tried to configure as above with my local node having one ASP and I have configured myself to work in override mode but I am talking to an AS which is working in loadshare mode. Similarly, my peer AS have two ASPs to work in loadshare mode and talking to an AS working in override mode. Is the configuration correct??? The problem I am having is that when my local AS sends a ASPAC, the traffic mode it includes is override and my peer AS sends a ERR with invalid traffic mode. Regards Ramma -- Make God Laugh, Tell Him Your Future Plans ------=_Part_2677_16108357.1158830944162 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi

I am trying to configure 2 AS to talk in IPSP: IPSP mode.  I am having trouble with the traffic mode. Can anyone please help me out. I dont know what am I do doing wrong exactly.


Local AS (One ASP)

My AS traffic mode : Override
Peer AS traffic mode : Loadshare


Remote AS (two ASPs)

My AS traffic mode : Loadshare
Peer AS traffic mode: Override


I have tried to configure as above with my local node having one ASP and I have configured myself to work in override mode but I am talking to an AS which is working in loadshare mode.
Similarly, my peer AS have two ASPs to work in loadshare mode and talking to an AS working in override mode.

Is the configuration correct???

The problem I am having is that when my local AS sends a ASPAC, the traffic mode it includes is override and my peer AS sends a ERR with invalid traffic mode.

Regards
Ramma


--
Make God Laugh, Tell Him Your Future Plans ------=_Part_2677_16108357.1158830944162-- --===============0351098219== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0351098219==-- From sigtran-bounces@ietf.org Thu Sep 21 07:53:17 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQN60-0004Hu-1u; Thu, 21 Sep 2006 07:52:00 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQN5y-0004Di-CK for sigtran@ietf.org; Thu, 21 Sep 2006 07:51:58 -0400 Received: from nf-out-0910.google.com ([64.233.182.190]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQN5t-0003Zf-RR for sigtran@ietf.org; Thu, 21 Sep 2006 07:51:58 -0400 Received: by nf-out-0910.google.com with SMTP id n15so816046nfc for ; Thu, 21 Sep 2006 04:51:52 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=ECU0f22o1Kq22PAV4oigKIciuti/GOvZPGwo/214wy4NvXg+6Ii2ADtgVVq6MDHON6kJ8//pI80+Nje4FYIuGZXOAeYtr+qSW+9OWiztxtBegJ0LjYZ9VtYNF+0LdGaiX9viOElvaZNVEfoWM1LAGzjXQq8kSQNhra+jGRDxOOA= Received: by 10.65.157.13 with SMTP id j13mr18286415qbo; Thu, 21 Sep 2006 04:51:51 -0700 (PDT) Received: by 10.65.54.18 with HTTP; Thu, 21 Sep 2006 04:51:51 -0700 (PDT) Message-ID: <279c411a0609210451r6e2efcd5hbb5816fcdab86673@mail.gmail.com> Date: Thu, 21 Sep 2006 12:51:51 +0100 From: Ramma To: bidulock@openss7.org, Ramma , sigtran In-Reply-To: <20060921052004.A22828@openss7.org> MIME-Version: 1.0 References: <279c411a0609210229s33ba52d1xb9d446e8cae849d3@mail.gmail.com> <20060921052004.A22828@openss7.org> X-Spam-Score: 0.1 (/) X-Scan-Signature: d185fa790257f526fedfd5d01ed9c976 Cc: Subject: [Sigtran] Re: Traffiic Mode : Help Please X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============2139993269==" Errors-To: sigtran-bounces@ietf.org --===============2139993269== Content-Type: multipart/alternative; boundary="----=_Part_3766_4454789.1158839511771" ------=_Part_3766_4454789.1158839511771 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi Brain, Thank you very much for replying. I am struck in a situation where I have a node (My node) which is configured as an AS and have the limitation that it can have only one ASP serving this AS and the traffic mode is always override. There is no way to configure the localAS traffic mode but you can set up the traffic mode for the remote AS. Using this node I want to talk to a peer node which have 2 ASPs and these 2 ASPs have to work in loadshare mode. Any hence I have the configuration as mentioned in my previous mail. My questions would be 1. Is there anything "illegal" with respect to the standards regarding this configuration. I cant find anything in the RFC which forbids this. 2. Is it mandory that if I am working in a particular traffic mode (say loadshare), my peer should work in the same traffic mode ? With respect to question number 2, if I have a situation where I am an AS with 2 ASPs working in loadshare mode and I am talking to 2 different AS -- one of which is working in loadshare mode and the other one in override. Cant I do that ??? Thank you very much for your time and I really appreciate your help. Regards Ramma On 9/21/06, Brian F. G. Bidulock wrote: > > Ramma, > > Ramma wrote: (Thu, 21 Sep 2006 10:29:04) > > I have tried to configure as above with my local node having one > ASP > > and I have configured myself to work in override mode but I am > talking > > to an AS which is working in loadshare mode. > > There is nothing in the spec requiring an implementation to > support such an arrangement. It doesn't even sound useful > to me. > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > -- Make God Laugh, Tell Him Your Future Plans ------=_Part_3766_4454789.1158839511771 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi Brain,

Thank you very much for replying.

I am struck in a situation where I have a node (My node) which is configured as an AS and have the limitation that it can have only one ASP serving this AS and the traffic mode is always override. There is no way to configure the localAS traffic mode but you can set up the traffic mode for the remote AS.

Using this node I want to talk to a peer node which have 2 ASPs and these 2 ASPs have to work in loadshare mode. Any hence I have the configuration as mentioned in my previous mail.

My questions would be

1. Is there anything "illegal" with respect to the standards regarding this configuration. I cant find anything in the RFC which forbids this.
2. Is it mandory that if I am working in a particular traffic mode (say loadshare), my peer should work in the same traffic mode ?

With respect to question number 2, if I have a situation where I am an AS with 2 ASPs working in loadshare mode and I am talking to 2 different AS -- one of which is working in loadshare mode and the other one in override. Cant I do that ???

Thank you very much for your time and I really appreciate your help.

Regards
Ramma



On 9/21/06, Brian F. G. Bidulock < bidulock@openss7.org> wrote:
Ramma,

Ramma wrote:                             (Thu, 21 Sep 2006 10:29:04)
>    I  have  tried to configure as above with my local node having one ASP
>    and I have configured myself to work in override mode but I am talking
>    to an AS which is working in loadshare mode.

There is nothing in the spec requiring an implementation to
support such an arrangement.  It doesn't even sound useful
to me.

--brian

--
Brian F. G. Bidulock
bidulock@openss7.org
http://www.openss7.org/



--
Make God Laugh, Tell Him Your Future Plans ------=_Part_3766_4454789.1158839511771-- --===============2139993269== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============2139993269==-- From sigtran-bounces@ietf.org Thu Sep 21 08:22:08 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQNYj-0003yJ-Lz; Thu, 21 Sep 2006 08:21:41 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQNYi-0003yE-OE for sigtran@ietf.org; Thu, 21 Sep 2006 08:21:40 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQNYb-0000W2-Rp for sigtran@ietf.org; Thu, 21 Sep 2006 08:21:40 -0400 Received: from ns.pigworks.openss7.net (IDENT:kdcZaOrw9ubo2HoB26mGX3tcJ6uKcpX+@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LCLXD22086; Thu, 21 Sep 2006 06:21:33 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LCLWJ28844; Thu, 21 Sep 2006 06:21:32 -0600 Date: Thu, 21 Sep 2006 06:21:32 -0600 From: "Brian F. G. Bidulock" To: Ramma Message-ID: <20060921062132.A28759@openss7.org> Mail-Followup-To: Ramma , sigtran References: <279c411a0609210229s33ba52d1xb9d446e8cae849d3@mail.gmail.com> <20060921052004.A22828@openss7.org> <279c411a0609210451r6e2efcd5hbb5816fcdab86673@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <279c411a0609210451r6e2efcd5hbb5816fcdab86673@mail.gmail.com>; from rock.ramma@gmail.com on Thu, Sep 21, 2006 at 12:51:51PM +0100 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 4d87d2aa806f79fed918a62e834505ca Cc: sigtran Subject: [Sigtran] Re: Traffiic Mode : Help Please X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Ramma, Ramma wrote: (Thu, 21 Sep 2006 12:51:51) > > Hi Brain, > Thank you very much for replying. > I am struck in a situation where I have a node (My node) which is > configured as an AS and have the limitation that it can have only one > ASP serving this AS and the traffic mode is always override. There is > no way to configure the localAS traffic mode but you can set up the > traffic mode for the remote AS. Sounds like an extremely limited implementation. > Using this node I want to talk to a peer node which have 2 ASPs and > these 2 ASPs have to work in loadshare mode. Any hence I have the > configuration as mentioned in my previous mail. > My questions would be > 1. Is there anything "illegal" with respect to the standards regarding > this configuration. I cant find anything in the RFC which forbids > this. There is nothing prohibiting it, in fact there is no text restricting how an APS distributes traffic over SGP. > 2. Is it mandory that if I am working in a particular traffic mode > (say loadshare), my peer should work in the same traffic mode ? I would say that is not necessarily the case. However, no implementation is required to support all traffic modes in all combinations. I would suggest discussing it with that implementation's creator. > With respect to question number 2, if I have a situation where I am an > AS with 2 ASPs working in loadshare mode and I am talking to 2 > different AS -- one of which is working in loadshare mode and the > other one in override. Cant I do that ??? Again there is nothing in the spec restricting it; however, not all implementations must support all modes in all combinations. > Thank you very much for your time and I really appreciate your help. I think your difficulties lie with specific implementations rather that with the specification. You would probably get better traction by talking to the vendors of the implementations. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 08:33:39 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQNk3-0003LE-N9; Thu, 21 Sep 2006 08:33:23 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQNk2-0003L3-Fx for sigtran@ietf.org; Thu, 21 Sep 2006 08:33:22 -0400 Received: from bw.ulticom.com ([208.255.120.38]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQNjx-0003CE-FB for sigtran@ietf.org; Thu, 21 Sep 2006 08:33:22 -0400 Received: from colby.ulticom.com (colby.ulticom.com [192.73.206.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bw.ulticom.com (BorderWare MXtreme Mail Firewall) with ESMTP id B2DA7D94C3 for ; Thu, 21 Sep 2006 08:33:14 -0400 (EDT) Received: from pcasveren (pc-asveren.ulticom.com [172.25.33.55]) by colby.ulticom.com (8.13.4/8.12.10) with SMTP id k8LCXDX0001436 for ; Thu, 21 Sep 2006 08:33:13 -0400 (EDT) From: "Tolga Asveren" To: Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 08:31:44 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <451255A7.2050800@axes-mach01.usa.alcatel.com> Importance: Normal Received-SPF: none X-Spam-Score: 0.0 (/) X-Scan-Signature: 7da5a831c477fb6ef97f379a05fb683c X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Satya, In M3UA network redundancy is provided by SCTP multihoming and host redundancy by using multiple ASPs for an AS. For the configuration you are mentioning, if the ASP host is down, there is no message retrieval possible in SS7 as well for the similar case. If the SCTP association is lost to an ASP, this shouldn't happen due to network problems (this property be guaranteed with SCTP multihoming and proper IP network configuration) and should indicate a host failure. Thanks, Tolga > -----Original Message----- > From: Satya Prasad Nemana > [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] > Sent: Thursday, September 21, 2006 5:05 AM > To: rfc-editor@rfc-editor.org > Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > A general comment on ASP failover cases, > M3UA does not have any method of doing retrieval /retranamission > Although SCTP does have the capability through multi homing, > the ULP should have the request in place to do the > retrieval/retransmission > In the case of a single AS having only a single ASP configured, there is > no chance of retrieval (but this is the most rare configuration > as networks > are configured not to go down with a single point of failure) > In case the AS is configured with two ASPs and each having a different > SCTP assoc with a single path in each of the assoc.. > there is no chance of message retrieval... as per the current rfc. > > No idea if this was not felt important in a telecom network!! > > rfc-editor@rfc-editor.org wrote: > > >A new Request for Comments is now available in online RFC libraries. > > > > > > RFC 4666 > > > > Title: Signaling System 7 (SS7) Message > > Transfer Part 3 (MTP3) - User > > Adaptation Layer (M3UA) > > Author: K. Morneault, Ed., > > J. Pastor-Balbas, Ed. > > Status: Standards Track > > Date: September 2006 > > Mailbox: kmorneau@cisco.com, > > j.javier.pastor@ericsson.com > > Pages: 124 > > Characters: 292991 > > Obsoletes: RFC3332 > > See-Also: > > > > I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt > > > > URL: http://www.rfc-editor.org/rfc/rfc4666.txt > > > >This memo defines a protocol for supporting the transport of any SS7 > >MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the > >services of the Stream Control Transmission Protocol. Also, > >provision is made for protocol elements that enable a seamless > >operation of the MTP3-User peers in the SS7 and IP domains. This > >protocol would be used between a Signalling Gateway (SG) and a Media > >Gateway Controller (MGC) or IP-resident Database, or between two > >IP-based applications. It is assumed that the SG receives SS7 > >signalling over a standard SS7 interface using the SS7 Message > >Transfer Part (MTP) to provide transport. This document obsoletes > >RFC 3332. [STANDARDS TRACK] > > > >This document is a product of the Signaling Transport > >Working Group of the IETF. > > > >This is now a Proposed Standard Protocol. > > > >STANDARDS TRACK: This document specifies an Internet standards track > >protocol for the Internet community,and requests discussion and > >suggestions for improvements.Please refer to the current edition of the > >Internet Official Protocol Standards (STD 1) for the standardization > >state and status of this protocol. Distribution of this memo is > >unlimited. > > > >This announcement is sent to the IETF list and the RFC-DIST list. > >Requests to be added to or deleted from the IETF distribution list > >should be sent to IETF-REQUEST@IETF.ORG. Requests to be > >added to or deleted from the RFC-DIST distribution list should > >be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG. > > > >Details on obtaining RFCs via FTP or EMAIL may be obtained by sending > >an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body > > > >help: ways_to_get_rfcs. For example: > > > > To: rfc-info@RFC-EDITOR.ORG > > Subject: getting rfcs > > > > help: ways_to_get_rfcs > > > >Requests for special distribution should be addressed to either the > >author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless > >specifically noted otherwise on the RFC itself, all RFCs are for > >unlimited distribution. > > > >Submissions for Requests for Comments should be sent to > >RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC > >Authors, for further information. > > > > > >Joyce K. Reynolds and Sandy Ginoza > >USC/Information Sciences Institute > > > >... > > > > > > > >_______________________________________________ > >Sigtran mailing list > >Sigtran@ietf.org > >https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:00:56 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQO9u-0001wn-9D; Thu, 21 Sep 2006 09:00:06 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQO9s-0001uO-E0 for sigtran@ietf.org; Thu, 21 Sep 2006 09:00:04 -0400 Received: from bw.ulticom.com ([208.255.120.38]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQO9n-00071m-QY for sigtran@ietf.org; Thu, 21 Sep 2006 09:00:04 -0400 Received: from colby.ulticom.com (colby.ulticom.com [192.73.206.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bw.ulticom.com (BorderWare MXtreme Mail Firewall) with ESMTP id 1B472B3EDE for ; Thu, 21 Sep 2006 08:59:53 -0400 (EDT) Received: from pcasveren (pc-asveren.ulticom.com [172.25.33.55]) by colby.ulticom.com (8.13.4/8.12.10) with SMTP id k8LCxpAU003957 for ; Thu, 21 Sep 2006 08:59:51 -0400 (EDT) From: "Tolga Asveren" To: Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 08:58:22 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <20060921065522.A29648@openss7.org> Importance: Normal Received-SPF: none X-Spam-Score: 0.0 (/) X-Scan-Signature: a7d6aff76b15f3f56fcb94490e1052e4 X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Brian, There is no such mechanism defined in SS7 specifications. Thanks, Tolga > -----Original Message----- > From: Brian F. G. Bidulock [mailto:bidulock@openss7.org] > Sent: Thursday, September 21, 2006 8:55 AM > To: Tolga Asveren > Cc: sigtran@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga, > > Tolga Asveren wrote: > (Thu, 21 Sep 2006 08:31:44) > > > > For the configuration you are mentioning, if the ASP host is > down, there is > > no message retrieval possible in SS7 as well for the similar case. > > When a host (SP) fails in SS7, other SPs are still able to > retrieve messages > from their buffers and send them via alternate SPs. > > M3UA could too, particularly in the case where an SG fails and there > are multiple SG as STP. > > Again, see: > > http://www.ietf.org/internet-drafts/draft-bidulock-sigtran-corid-04.txt > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:20:18 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOTD-0006Of-KM; Thu, 21 Sep 2006 09:20:03 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOTC-0006Oa-Th for sigtran@ietf.org; Thu, 21 Sep 2006 09:20:02 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQOSl-0001Qz-EO for sigtran@ietf.org; Thu, 21 Sep 2006 09:20:02 -0400 Received: from ns.pigworks.openss7.net (IDENT:3NPAKt0B9SfBi7ujpes819WL3EfluwpX@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LDJYD23482; Thu, 21 Sep 2006 07:19:34 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LDJYg30522; Thu, 21 Sep 2006 07:19:34 -0600 Date: Thu, 21 Sep 2006 07:19:34 -0600 From: "Brian F. G. Bidulock" To: Tolga Asveren Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921071934.A30347@openss7.org> Mail-Followup-To: Tolga Asveren , sigtran@ietf.org References: <20060921065522.A29648@openss7.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from asveren@ulticom.com on Thu, Sep 21, 2006 at 08:58:22AM -0400 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 856eb5f76e7a34990d1d457d8e8e5b7f Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga, Tolga Asveren wrote: (Thu, 21 Sep 2006 08:58:22) > > There is no such mechanism defined in SS7 specifications. > Oh really? See in particular Figure A.11/Q.705 (single STP failure) and Figure A.13/Q.705 (dual STP failure). And, of course, the mechanism is Clause 5/Q.704. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:25:02 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOXt-0008S1-Sc; Thu, 21 Sep 2006 09:24:53 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOXr-0008Rw-Ts for sigtran@ietf.org; Thu, 21 Sep 2006 09:24:51 -0400 Received: from bw.ulticom.com ([208.255.120.38]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQOXm-0002lZ-E6 for sigtran@ietf.org; Thu, 21 Sep 2006 09:24:51 -0400 Received: from colby.ulticom.com (colby.ulticom.com [192.73.206.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bw.ulticom.com (BorderWare MXtreme Mail Firewall) with ESMTP id 06F0711C09 for ; Thu, 21 Sep 2006 09:24:46 -0400 (EDT) Received: from pcasveren (pc-asveren.ulticom.com [172.25.33.55]) by colby.ulticom.com (8.13.4/8.12.10) with SMTP id k8LDOjfJ006556 for ; Thu, 21 Sep 2006 09:24:45 -0400 (EDT) From: "Tolga Asveren" To: Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 09:23:15 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <20060921071934.A30347@openss7.org> Importance: Normal Received-SPF: none X-Spam-Score: 0.0 (/) X-Scan-Signature: 52e1467c2184c31006318542db5614d5 X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Brian, Changeover mechanism is not to address host failures because when a host is down, it can't tell anything about the last received message etc... Thanks, Tolga > -----Original Message----- > From: Brian F. G. Bidulock [mailto:bidulock@openss7.org] > Sent: Thursday, September 21, 2006 9:20 AM > To: Tolga Asveren > Cc: sigtran@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga, > > Tolga Asveren wrote: (Thu, 21 Sep 2006 08:58:22) > > > > There is no such mechanism defined in SS7 specifications. > > > > Oh really? See in particular Figure A.11/Q.705 (single STP failure) > and Figure A.13/Q.705 (dual STP failure). > > And, of course, the mechanism is Clause 5/Q.704. > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:26:10 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOZ0-000132-OG; Thu, 21 Sep 2006 09:26:02 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOYz-000122-96 for sigtran@ietf.org; Thu, 21 Sep 2006 09:26:01 -0400 Received: from hostree9f.alcatel.com ([143.209.238.159] helo=audl952.usa.alcatel.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQOYv-00036G-Hm for sigtran@ietf.org; Thu, 21 Sep 2006 09:26:01 -0400 Received: from ssd.usa.alcatel.com (spdmail-qfe1.ssd.usa.alcatel.com [172.22.222.60]) by audl952.usa.alcatel.com (ALCANET) with ESMTP id k8LDPnrt013656; Thu, 21 Sep 2006 08:25:56 -0500 Received: from axes-mach01.usa.alcatel.com (axes-mach01.usa.alcatel.com [10.255.0.20]) by ssd.usa.alcatel.com (8.12.8/8.12.8) with ESMTP id k8LDPhgq025775; Thu, 21 Sep 2006 08:25:44 -0500 (CDT) Received: from [10.255.1.77] (ax-sp-pc27.usa.alcatel.com [10.255.1.77]) by axes-mach01.usa.alcatel.com (8.12.10+Sun/8.12.2) with ESMTP id k8LDV9j0021860; Thu, 21 Sep 2006 19:01:10 +0530 (IST) Message-ID: <45129339.4080202@axes-mach01.usa.alcatel.com> Date: Thu, 21 Sep 2006 18:57:21 +0530 From: Satya Prasad Nemana Organization: Tech Mahindra R&D Services, 9/7 Hosur Road, Bangalore-560029 Ph :25539232/33 Extn 1243 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Tolga Asveren Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) References: In-Reply-To: X-Scanned-By: MIMEDefang 2.51 on 143.209.238.34 X-Spam-Score: 0.1 (/) X-Scan-Signature: bdfdd9dd835c9bb499f7c92933fef080 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Satya_Prasad.Nemana@alcatel.com List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0471576971==" Errors-To: sigtran-bounces@ietf.org This is a multi-part message in MIME format. --===============0471576971== Content-Type: multipart/alternative; boundary="------------000501010902090706020501" This is a multi-part message in MIME format. --------------000501010902090706020501 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Tolga, Consider the situation SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- SG1 in loadshared... SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. The current implementations do not have the capacity to retransmit the remaining 60 msgs... They are lost although we have ASP12 for redundancy purposes. Considering the case of Multi Homing also... even if ASP11 is multi homed and loses one path with a similar situation, there is still no chance of retransmitting the msgs as M3UA does not define any such method for retrieval .... Regards, Satya Prasad Tolga Asveren wrote: >Satya, > >In M3UA network redundancy is provided by SCTP multihoming and host >redundancy by using multiple ASPs for an AS. > >For the configuration you are mentioning, if the ASP host is down, there is >no message retrieval possible in SS7 as well for the similar case. If the >SCTP association is lost to an ASP, this shouldn't happen due to network >problems (this property be guaranteed with SCTP multihoming and proper IP >network configuration) and should indicate a host failure. > > Thanks, > Tolga > > > >>-----Original Message----- >>From: Satya Prasad Nemana >>[mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] >>Sent: Thursday, September 21, 2006 5:05 AM >>To: rfc-editor@rfc-editor.org >>Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org >>Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message >>TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) >> >> >> >>A general comment on ASP failover cases, >>M3UA does not have any method of doing retrieval /retranamission >>Although SCTP does have the capability through multi homing, >>the ULP should have the request in place to do the >>retrieval/retransmission >>In the case of a single AS having only a single ASP configured, there is >>no chance of retrieval (but this is the most rare configuration >>as networks >>are configured not to go down with a single point of failure) >>In case the AS is configured with two ASPs and each having a different >>SCTP assoc with a single path in each of the assoc.. >>there is no chance of message retrieval... as per the current rfc. >> >>No idea if this was not felt important in a telecom network!! >> >>rfc-editor@rfc-editor.org wrote: >> >> >> >>>A new Request for Comments is now available in online RFC libraries. >>> >>> >>> RFC 4666 >>> >>> Title: Signaling System 7 (SS7) Message >>> Transfer Part 3 (MTP3) - User >>> Adaptation Layer (M3UA) >>> Author: K. Morneault, Ed., >>> J. Pastor-Balbas, Ed. >>> Status: Standards Track >>> Date: September 2006 >>> Mailbox: kmorneau@cisco.com, >>> j.javier.pastor@ericsson.com >>> Pages: 124 >>> Characters: 292991 >>> Obsoletes: RFC3332 >>> See-Also: >>> >>> I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt >>> >>> URL: http://www.rfc-editor.org/rfc/rfc4666.txt >>> >>>This memo defines a protocol for supporting the transport of any SS7 >>>MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the >>>services of the Stream Control Transmission Protocol. Also, >>>provision is made for protocol elements that enable a seamless >>>operation of the MTP3-User peers in the SS7 and IP domains. This >>>protocol would be used between a Signalling Gateway (SG) and a Media >>>Gateway Controller (MGC) or IP-resident Database, or between two >>>IP-based applications. It is assumed that the SG receives SS7 >>>signalling over a standard SS7 interface using the SS7 Message >>>Transfer Part (MTP) to provide transport. This document obsoletes >>>RFC 3332. [STANDARDS TRACK] >>> >>>This document is a product of the Signaling Transport >>>Working Group of the IETF. >>> >>>This is now a Proposed Standard Protocol. >>> >>>STANDARDS TRACK: This document specifies an Internet standards track >>>protocol for the Internet community,and requests discussion and >>>suggestions for improvements.Please refer to the current edition of the >>>Internet Official Protocol Standards (STD 1) for the standardization >>>state and status of this protocol. Distribution of this memo is >>>unlimited. >>> >>>This announcement is sent to the IETF list and the RFC-DIST list. >>>Requests to be added to or deleted from the IETF distribution list >>>should be sent to IETF-REQUEST@IETF.ORG. Requests to be >>>added to or deleted from the RFC-DIST distribution list should >>>be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG. >>> >>>Details on obtaining RFCs via FTP or EMAIL may be obtained by sending >>>an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body >>> >>>help: ways_to_get_rfcs. For example: >>> >>> To: rfc-info@RFC-EDITOR.ORG >>> Subject: getting rfcs >>> >>> help: ways_to_get_rfcs >>> >>>Requests for special distribution should be addressed to either the >>>author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless >>>specifically noted otherwise on the RFC itself, all RFCs are for >>>unlimited distribution. >>> >>>Submissions for Requests for Comments should be sent to >>>RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC >>>Authors, for further information. >>> >>> >>>Joyce K. Reynolds and Sandy Ginoza >>>USC/Information Sciences Institute >>> >>>... >>> >>> >>> >>>_______________________________________________ >>>Sigtran mailing list >>>Sigtran@ietf.org >>>https://www1.ietf.org/mailman/listinfo/sigtran >>> >>> >>> >>> >>> >>> >>_______________________________________________ >>Sigtran mailing list >>Sigtran@ietf.org >>https://www1.ietf.org/mailman/listinfo/sigtran >> >> > > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > > > > --------------000501010902090706020501 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Tolga,

Consider the situation

SP1 is routing  ISUP messages to  AS1 (which has ASP11, ASP12) via SG- SG1 in loadshared...
SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11..
When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs..
The current implementations do not have the capacity to retransmit the remaining 60 msgs...
They are lost although we have ASP12 for redundancy purposes.

Considering the case of Multi Homing also...
even if ASP11 is multi homed and loses one path with a similar situation, there is still no chance of
retransmitting the msgs as M3UA does not define any such method for retrieval ....

Regards,
Satya Prasad



Tolga Asveren wrote:
Satya,

In M3UA network redundancy is provided by SCTP multihoming and host
redundancy by using multiple ASPs for an AS.

For the configuration you are mentioning, if the ASP host is down, there is
no message retrieval possible in SS7 as well for the similar case. If the
SCTP association is lost to an ASP, this shouldn't happen due to network
problems (this property be guaranteed with SCTP multihoming and proper IP
network configuration) and should indicate a host failure.

     Thanks,
     Tolga

  
-----Original Message-----
From: Satya Prasad Nemana
[mailto:SatyaPrasad@axes-mach01.usa.alcatel.com]
Sent: Thursday, September 21, 2006 5:05 AM
To: rfc-editor@rfc-editor.org
Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org
Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message
TransferPart 3 (MTP3) - User Adaptation Layer (M3UA)



A general comment on ASP failover cases,
M3UA does not have any method of doing retrieval /retranamission
Although SCTP does have the capability through multi homing,
the ULP should have the request in place to do the
retrieval/retransmission
In the case of a single AS having only a single ASP configured, there is
no chance of retrieval (but this is the most rare configuration
as networks
are configured  not to go down with a single point of failure)
In case the AS is configured with two ASPs and each having a different
SCTP assoc with a single path in  each of the assoc..
there is no chance of message retrieval... as per the current rfc.

No idea if this was not felt important in a telecom network!!

rfc-editor@rfc-editor.org wrote:

    
A new Request for Comments is now available in online RFC libraries.


       RFC 4666

       Title:      Signaling System 7 (SS7) Message
                   Transfer Part 3 (MTP3) - User
                   Adaptation Layer (M3UA)
       Author:     K. Morneault, Ed.,
                   J. Pastor-Balbas, Ed.
       Status:     Standards Track
       Date:       September 2006
       Mailbox:    kmorneau@cisco.com,
                   j.javier.pastor@ericsson.com
       Pages:      124
       Characters: 292991
       Obsoletes:  RFC3332
       See-Also:

       I-D Tag:    draft-ietf-sigtran-rfc3332bis-06.txt

       URL:        http://www.rfc-editor.org/rfc/rfc4666.txt

This memo defines a protocol for supporting the transport of any SS7
MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the
services of the Stream Control Transmission Protocol.  Also,
provision is made for protocol elements that enable a seamless
operation of the MTP3-User peers in the SS7 and IP domains.  This
protocol would be used between a Signalling Gateway (SG) and a Media
Gateway Controller (MGC) or IP-resident Database, or between two
IP-based applications.  It is assumed that the SG receives SS7
signalling over a standard SS7 interface using the SS7 Message
Transfer Part (MTP) to provide transport.  This document obsoletes
RFC 3332.  [STANDARDS TRACK]

This document is a product of the Signaling Transport
Working Group of the IETF.

This is now a Proposed Standard Protocol.

STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and
suggestions for improvements.Please refer to the current edition of the
Internet Official Protocol Standards (STD 1) for the standardization
state and status of this protocol.  Distribution of this memo is
unlimited.

This announcement is sent to the IETF list and the RFC-DIST list.
Requests to be added to or deleted from the IETF distribution list
should be sent to IETF-REQUEST@IETF.ORG.  Requests to be
added to or deleted from the RFC-DIST distribution list should
be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG.

Details on obtaining RFCs via FTP or EMAIL may be obtained by sending
an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body

help: ways_to_get_rfcs. For example:

       To: rfc-info@RFC-EDITOR.ORG
       Subject: getting rfcs

       help: ways_to_get_rfcs

Requests for special distribution should be addressed to either the
author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG.  Unless
specifically noted otherwise on the RFC itself, all RFCs are for
unlimited distribution.

Submissions for Requests for Comments should be sent to
RFC-EDITOR@RFC-EDITOR.ORG.  Please consult RFC 2223, Instructions to RFC
Authors, for further information.


Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

...



_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran




      
_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran
    


_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran


  
--------------000501010902090706020501-- --===============0471576971== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0471576971==-- From sigtran-bounces@ietf.org Thu Sep 21 09:29:57 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOce-0003C1-T6; Thu, 21 Sep 2006 09:29:48 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOcd-0003Bu-FQ for sigtran@ietf.org; Thu, 21 Sep 2006 09:29:47 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQOcW-00040X-49 for sigtran@ietf.org; Thu, 21 Sep 2006 09:29:47 -0400 Received: from ns.pigworks.openss7.net (IDENT:VlCh3kASC499UAYu8NvZX0HkEvMFIZBz@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LDTcD23687; Thu, 21 Sep 2006 07:29:38 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LDTcr30711; Thu, 21 Sep 2006 07:29:38 -0600 Date: Thu, 21 Sep 2006 07:29:38 -0600 From: "Brian F. G. Bidulock" To: Tolga Asveren Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921072938.A30616@openss7.org> Mail-Followup-To: Tolga Asveren , sigtran@ietf.org References: <20060921071934.A30347@openss7.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from asveren@ulticom.com on Thu, Sep 21, 2006 at 09:23:15AM -0400 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 93238566e09e6e262849b4f805833007 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga, Tolga Asveren wrote: (Thu, 21 Sep 2006 09:23:15) > > Changeover mechanism is not to address host failures because when a host is > down, it can't tell anything about the last received message etc... Changeover addresses link failure, where link failure is defined as any time at which MTP Level 3 receives link failure indication from a signalling links, which includes adjacent signalling point failure. Look at the diagrams. Besides, the introduction to: http://www.ietf.org/internet-drafts/draft-bidulock-sigtran-corid-04.txt illustrates this well, I think. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:35:15 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOhb-0005Hj-29; Thu, 21 Sep 2006 09:34:55 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOhZ-0005Hd-Br for sigtran@ietf.org; Thu, 21 Sep 2006 09:34:53 -0400 Received: from bw.ulticom.com ([208.255.120.38]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQOhU-00056S-RT for sigtran@ietf.org; Thu, 21 Sep 2006 09:34:53 -0400 Received: from colby.ulticom.com (colby.ulticom.com [192.73.206.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bw.ulticom.com (BorderWare MXtreme Mail Firewall) with ESMTP id 3BD0F64929; Thu, 21 Sep 2006 09:34:48 -0400 (EDT) Received: from pcasveren (pc-asveren.ulticom.com [172.25.33.55]) by colby.ulticom.com (8.13.4/8.12.10) with SMTP id k8LDYjx1007724; Thu, 21 Sep 2006 09:34:46 -0400 (EDT) From: "Tolga Asveren" To: Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 09:33:16 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <45129339.4080202@axes-mach01.usa.alcatel.com> Importance: Normal Received-SPF: none X-Spam-Score: 0.0 (/) X-Scan-Signature: b8f3559805f7873076212d6f63ee803e Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Satya, If SCTP association to ASP11 is lost, this implies that ASP11 host is down, because network redundancy is provided with SCTP multihoming and proper IP network engineering. When ASP11 is down, there is no way to retrieve anyhting. The possibility of loosing SCTP association without a host failure should be guranateed to be below some acceptable threshold value, i.e. really really low. BTW, your assumption of SCTP not being able to failover between paths with no message loss is not correct. SCTP does this without message loss and missequencing. Thanks, Tolga -----Original Message----- From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 9:27 AM To: Tolga Asveren Cc: sigtran@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Tolga, Consider the situation SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- SG1 in loadshared... SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. The current implementations do not have the capacity to retransmit the remaining 60 msgs... They are lost although we have ASP12 for redundancy purposes. Considering the case of Multi Homing also... even if ASP11 is multi homed and loses one path with a similar situation, there is still no chance of retransmitting the msgs as M3UA does not define any such method for retrieval .... Regards, Satya Prasad Tolga Asveren wrote: Satya, In M3UA network redundancy is provided by SCTP multihoming and host redundancy by using multiple ASPs for an AS. For the configuration you are mentioning, if the ASP host is down, there is no message retrieval possible in SS7 as well for the similar case. If the SCTP association is lost to an ASP, this shouldn't happen due to network problems (this property be guaranteed with SCTP multihoming and proper IP network configuration) and should indicate a host failure. Thanks, Tolga -----Original Message----- From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 5:05 AM To: rfc-editor@rfc-editor.org Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) A general comment on ASP failover cases, M3UA does not have any method of doing retrieval /retranamission Although SCTP does have the capability through multi homing, the ULP should have the request in place to do the retrieval/retransmission In the case of a single AS having only a single ASP configured, there is no chance of retrieval (but this is the most rare configuration as networks are configured not to go down with a single point of failure) In case the AS is configured with two ASPs and each having a different SCTP assoc with a single path in each of the assoc.. there is no chance of message retrieval... as per the current rfc. No idea if this was not felt important in a telecom network!! rfc-editor@rfc-editor.org wrote: A new Request for Comments is now available in online RFC libraries. RFC 4666 Title: Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA) Author: K. Morneault, Ed., J. Pastor-Balbas, Ed. Status: Standards Track Date: September 2006 Mailbox: kmorneau@cisco.com, j.javier.pastor@ericsson.com Pages: 124 Characters: 292991 Obsoletes: RFC3332 See-Also: I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt URL: http://www.rfc-editor.org/rfc/rfc4666.txt This memo defines a protocol for supporting the transport of any SS7 MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the services of the Stream Control Transmission Protocol. Also, provision is made for protocol elements that enable a seamless operation of the MTP3-User peers in the SS7 and IP domains. This protocol would be used between a Signalling Gateway (SG) and a Media Gateway Controller (MGC) or IP-resident Database, or between two IP-based applications. It is assumed that the SG receives SS7 signalling over a standard SS7 interface using the SS7 Message Transfer Part (MTP) to provide transport. This document obsoletes RFC 3332. [STANDARDS TRACK] This document is a product of the Signaling Transport Working Group of the IETF. This is now a Proposed Standard Protocol. STANDARDS TRACK: This document specifies an Internet standards track protocol for the Internet community,and requests discussion and suggestions for improvements.Please refer to the current edition of the Internet Official Protocol Standards (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF list and the RFC-DIST list. Requests to be added to or deleted from the IETF distribution list should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or deleted from the RFC-DIST distribution list should be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG. Details on obtaining RFCs via FTP or EMAIL may be obtained by sending an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body help: ways_to_get_rfcs. For example: To: rfc-info@RFC-EDITOR.ORG Subject: getting rfcs help: ways_to_get_rfcs Requests for special distribution should be addressed to either the author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. Submissions for Requests for Comments should be sent to RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC Authors, for further information. Joyce K. Reynolds and Sandy Ginoza USC/Information Sciences Institute ... _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:35:50 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOiU-0005Qh-IA; Thu, 21 Sep 2006 09:35:50 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOiS-0005OX-Tn for sigtran@ietf.org; Thu, 21 Sep 2006 09:35:48 -0400 Received: from bw.ulticom.com ([208.255.120.38]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQOiO-0005CZ-3l for sigtran@ietf.org; Thu, 21 Sep 2006 09:35:48 -0400 Received: from colby.ulticom.com (colby.ulticom.com [192.73.206.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bw.ulticom.com (BorderWare MXtreme Mail Firewall) with ESMTP id 33AEAF9407 for ; Thu, 21 Sep 2006 09:35:43 -0400 (EDT) Received: from pcasveren (pc-asveren.ulticom.com [172.25.33.55]) by colby.ulticom.com (8.13.4/8.12.10) with SMTP id k8LDZhal007828 for ; Thu, 21 Sep 2006 09:35:43 -0400 (EDT) From: "Tolga Asveren" To: Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7) MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 09:34:13 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <20060921072938.A30616@openss7.org> Importance: Normal Received-SPF: none X-Spam-Score: 0.0 (/) X-Scan-Signature: 0ddefe323dd869ab027dbfff7eff0465 X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Brian, Addressing link failure does not correspond to host redundancy but to network interface/network redundancy, which is addressed by SCTP multihoming. Thanks, Tolga > -----Original Message----- > From: Brian F. G. Bidulock [mailto:bidulock@openss7.org] > Sent: Thursday, September 21, 2006 9:30 AM > To: Tolga Asveren > Cc: sigtran@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) > MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga, > > Tolga Asveren wrote: (Thu, 21 Sep > 2006 09:23:15) > > > > Changeover mechanism is not to address host failures because > when a host is > > down, it can't tell anything about the last received message etc... > > Changeover addresses link failure, where link failure is defined as > any time at which MTP Level 3 receives link failure indication from > a signalling links, which includes adjacent signalling point failure. > Look at the diagrams. > > Besides, the introduction to: > > http://www.ietf.org/internet-drafts/draft-bidulock-sigtran-corid-04.txt > > illustrates this well, I think. > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:40:06 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOmU-0008Ia-Ao; Thu, 21 Sep 2006 09:39:58 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOmS-0008IU-PY for sigtran@ietf.org; Thu, 21 Sep 2006 09:39:56 -0400 Received: from us-wkf-fwmain.comverse.com ([63.64.185.250] helo=us-wkf-interscan1.comverse.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQOmO-0006ZJ-10 for sigtran@ietf.org; Thu, 21 Sep 2006 09:39:56 -0400 Received: from us-nj-mail1.comverse.com (localhost.localdomain [127.0.0.1]) by us-wkf-interscan1.comverse.com (8.13.1/8.13.1) with ESMTP id k8LDdWIp020045; Thu, 21 Sep 2006 09:39:34 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 09:39:31 -0400 Message-ID: <849535E338E99741B7F7413F73253EDB04C1FF41@us-nj-mail1.comverse.com> In-Reply-To: <45129339.4080202@axes-mach01.usa.alcatel.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) thread-index: AcbdgcDqcJmSiSudS9Gdp5tDbT7e6gAAGlIQ From: "Haresign Lincoln" To: , "Tolga Asveren" X-Spam-Score: 0.1 (/) X-Scan-Signature: 90f8d7cac99eccf384c4cdc57475e98c Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1658986588==" Errors-To: sigtran-bounces@ietf.org This is a multi-part message in MIME format. --===============1658986588== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C6DD83.5EAC2588" This is a multi-part message in MIME format. ------_=_NextPart_001_01C6DD83.5EAC2588 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Personally, I would back some type of mechanism for retrieval. =20 Tolga, =20 I agree that in an ideal world, we should never loose associations except for the case of host failure. In reality, we are seeing all sorts of scenarios: =20 1. Some switches/networks require us to run multiple associations to the same host to improve performance. =20 2. Multihomed associations can fail (daul port NIC failure with SCTP running on the NIC) while the host remains running. =20 I would back Brian's CORID draft. =20 Regards, Lincoln ________________________________ From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com]=20 Sent: Thursday, September 21, 2006 9:27 AM To: Tolga Asveren Cc: sigtran@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Tolga, Consider the situation SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- SG1 in loadshared... SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. The current implementations do not have the capacity to retransmit the remaining 60 msgs... They are lost although we have ASP12 for redundancy purposes. Considering the case of Multi Homing also... even if ASP11 is multi homed and loses one path with a similar situation, there is still no chance of=20 retransmitting the msgs as M3UA does not define any such method for retrieval .... Regards, Satya Prasad Tolga Asveren wrote: Satya, =09 In M3UA network redundancy is provided by SCTP multihoming and host redundancy by using multiple ASPs for an AS. =09 For the configuration you are mentioning, if the ASP host is down, there is no message retrieval possible in SS7 as well for the similar case. If the SCTP association is lost to an ASP, this shouldn't happen due to network problems (this property be guaranteed with SCTP multihoming and proper IP network configuration) and should indicate a host failure. =09 Thanks, Tolga =09 =20 -----Original Message----- From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 5:05 AM To: rfc-editor@rfc-editor.org Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) =09 =09 =09 A general comment on ASP failover cases, M3UA does not have any method of doing retrieval /retranamission Although SCTP does have the capability through multi homing, the ULP should have the request in place to do the retrieval/retransmission In the case of a single AS having only a single ASP configured, there is no chance of retrieval (but this is the most rare configuration as networks are configured not to go down with a single point of failure) In case the AS is configured with two ASPs and each having a different SCTP assoc with a single path in each of the assoc.. there is no chance of message retrieval... as per the current rfc. =09 No idea if this was not felt important in a telecom network!! =09 rfc-editor@rfc-editor.org wrote: =09 =20 A new Request for Comments is now available in online RFC libraries. =09 =09 RFC 4666 =09 Title: Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA) Author: K. Morneault, Ed., J. Pastor-Balbas, Ed. Status: Standards Track Date: September 2006 Mailbox: kmorneau@cisco.com, j.javier.pastor@ericsson.com Pages: 124 Characters: 292991 Obsoletes: RFC3332 See-Also: =09 I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt =09 URL: http://www.rfc-editor.org/rfc/rfc4666.txt =09 This memo defines a protocol for supporting the transport of any SS7 MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the services of the Stream Control Transmission Protocol. Also, provision is made for protocol elements that enable a seamless operation of the MTP3-User peers in the SS7 and IP domains. This protocol would be used between a Signalling Gateway (SG) and a Media Gateway Controller (MGC) or IP-resident Database, or between two IP-based applications. It is assumed that the SG receives SS7 signalling over a standard SS7 interface using the SS7 Message Transfer Part (MTP) to provide transport. This document obsoletes RFC 3332. [STANDARDS TRACK] =09 This document is a product of the Signaling Transport Working Group of the IETF. =09 This is now a Proposed Standard Protocol. =09 STANDARDS TRACK: This document specifies an Internet standards track protocol for the Internet community,and requests discussion and suggestions for improvements.Please refer to the current edition of the Internet Official Protocol Standards (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. =09 This announcement is sent to the IETF list and the RFC-DIST list. Requests to be added to or deleted from the IETF distribution list should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or deleted from the RFC-DIST distribution list should be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG. =09 Details on obtaining RFCs via FTP or EMAIL may be obtained by sending an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body =09 help: ways_to_get_rfcs. For example: =09 To: rfc-info@RFC-EDITOR.ORG Subject: getting rfcs =09 help: ways_to_get_rfcs =09 Requests for special distribution should be addressed to either the author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. =09 Submissions for Requests for Comments should be sent to RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC Authors, for further information. =09 =09 Joyce K. Reynolds and Sandy Ginoza USC/Information Sciences Institute =09 ... =09 =09 =09 _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran =09 =09 =09 =09 =20 _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran =20 =09 =09 _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran =09 =09 =20 ------_=_NextPart_001_01C6DD83.5EAC2588 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Personally, I would back some type of mechanism for=20 retrieval.
 
Tolga,
 
I=20 agree that in an ideal world, we should never loose associations except = for the=20 case of host failure.  In reality, we are seeing all sorts of=20 scenarios:
 
1.=20 Some switches/networks require us to run multiple associations to the = same host=20 to improve performance.
 
2.=20 Multihomed associations can fail (daul port NIC failure with SCTP = running on the=20 NIC) while the host remains running.
 
I=20 would back Brian's CORID draft.
 
Regards,
Lincoln


From: Satya Prasad Nemana=20 [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com]
Sent: = Thursday,=20 September 21, 2006 9:27 AM
To: Tolga Asveren
Cc:=20 sigtran@ietf.org
Subject: Re: [Sigtran] RFC 4666 on Signaling = System 7=20 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer=20 (M3UA)

Tolga,

Consider the situation

SP1 is = routing  ISUP=20 messages to  AS1 (which has ASP11, ASP12) via SG- SG1 in=20 loadshared...
SG1 has sent 1000 msgs to AS1 via SCTP assoc of = ASP11..
When=20 SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs..
The = current=20 implementations do not have the capacity to retransmit the remaining 60=20 msgs...
They are lost although we have ASP12 for redundancy=20 purposes.

Considering the case of Multi Homing also...
even if = ASP11=20 is multi homed and loses one path with a similar situation, there is = still no=20 chance of
retransmitting the msgs as M3UA does not define any such = method=20 for retrieval ....

Regards,
Satya Prasad



Tolga = Asveren=20 wrote:
Satya,

In M3UA network redundancy is provided by SCTP multihoming and host
redundancy by using multiple ASPs for an AS.

For the configuration you are mentioning, if the ASP host is down, there =
is
no message retrieval possible in SS7 as well for the similar case. If =
the
SCTP association is lost to an ASP, this shouldn't happen due to network
problems (this property be guaranteed with SCTP multihoming and proper =
IP
network configuration) and should indicate a host failure.

     Thanks,
     Tolga

  
-----Original Message-----
From: Satya Prasad Nemana
[mailto:SatyaPrasa=
d@axes-mach01.usa.alcatel.com]
Sent: Thursday, September 21, 2006 5:05 AM
To: rfc-editor@rfc-editor.org
Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org
Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message
TransferPart 3 (MTP3) - User Adaptation Layer (M3UA)



A general comment on ASP failover cases,
M3UA does not have any method of doing retrieval /retranamission
Although SCTP does have the capability through multi homing,
the ULP should have the request in place to do the
retrieval/retransmission
In the case of a single AS having only a single ASP configured, there is
no chance of retrieval (but this is the most rare configuration
as networks
are configured  not to go down with a single point of failure)
In case the AS is configured with two ASPs and each having a different
SCTP assoc with a single path in  each of the assoc..
there is no chance of message retrieval... as per the current rfc.

No idea if this was not felt important in a telecom network!!

rfc-editor@rfc-editor.org =
wrote:

    
A new Request for Comments =
is now available in online RFC libraries.


       RFC 4666

       Title:      Signaling System 7 (SS7) Message
                   Transfer Part 3 (MTP3) - User
                   Adaptation Layer (M3UA)
       Author:     K. Morneault, Ed.,
                   J. Pastor-Balbas, Ed.
       Status:     Standards Track
       Date:       September 2006
       Mailbox:    kmorneau@cisco.com,
                   j.javier.pastor@ericsson.com=

       Pages:      124
       Characters: 292991
       Obsoletes:  RFC3332
       See-Also:

       I-D Tag:    draft-ietf-sigtran-rfc3332bis-06.txt

       URL:        http://www.rfc-editor.=
org/rfc/rfc4666.txt

This memo defines a protocol for supporting the transport of any SS7
MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the
services of the Stream Control Transmission Protocol.  Also,
provision is made for protocol elements that enable a seamless
operation of the MTP3-User peers in the SS7 and IP domains.  This
protocol would be used between a Signalling Gateway (SG) and a Media
Gateway Controller (MGC) or IP-resident Database, or between two
IP-based applications.  It is assumed that the SG receives SS7
signalling over a standard SS7 interface using the SS7 Message
Transfer Part (MTP) to provide transport.  This document obsoletes
RFC 3332.  [STANDARDS TRACK]

This document is a product of the Signaling Transport
Working Group of the IETF.

This is now a Proposed Standard Protocol.

STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and
suggestions for improvements.Please refer to the current edition of the
Internet Official Protocol Standards (STD 1) for the standardization
state and status of this protocol.  Distribution of this memo is
unlimited.

This announcement is sent to the IETF list and the RFC-DIST list.
Requests to be added to or deleted from the IETF distribution list
should be sent to IETF-REQUEST@IETF.ORG.  =
Requests to be
added to or deleted from the RFC-DIST distribution list should
be sent to RFC-DIST-REQUEST@RFC-EDIT=
OR.ORG.

Details on obtaining RFCs via FTP or EMAIL may be obtained by sending
an EMAIL message to rfc-info@RFC-EDITOR.ORG with =
the message body

help: ways_to_get_rfcs. For example:

       To: rfc-info@RFC-EDITOR.ORG
       Subject: getting rfcs

       help: ways_to_get_rfcs

Requests for special distribution should be addressed to either the
author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG=
.  Unless
specifically noted otherwise on the RFC itself, all RFCs are for
unlimited distribution.

Submissions for Requests for Comments should be sent to
RFC-EDITOR@RFC-EDITOR.ORG. =
 Please consult RFC 2223, Instructions to RFC
Authors, for further information.


Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

...



_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf=
.org/mailman/listinfo/sigtran




      
_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf=
.org/mailman/listinfo/sigtran
    


_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf=
.org/mailman/listinfo/sigtran


  
------_=_NextPart_001_01C6DD83.5EAC2588-- --===============1658986588== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============1658986588==-- From sigtran-bounces@ietf.org Thu Sep 21 09:40:54 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOnG-00005L-DY; Thu, 21 Sep 2006 09:40:46 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOnF-0008WO-4a for sigtran@ietf.org; Thu, 21 Sep 2006 09:40:45 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQOnA-0006is-BO for sigtran@ietf.org; Thu, 21 Sep 2006 09:40:45 -0400 Received: from ns.pigworks.openss7.net (IDENT:Vyvwxn9Ku6/VUxORLpJ3bk8FRMDsgLRy@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LDedD23923; Thu, 21 Sep 2006 07:40:39 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LDed030939; Thu, 21 Sep 2006 07:40:39 -0600 Date: Thu, 21 Sep 2006 07:40:39 -0600 From: "Brian F. G. Bidulock" To: Tolga Asveren Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921074039.B30616@openss7.org> Mail-Followup-To: Tolga Asveren , sigtran@ietf.org References: <20060921072938.A30616@openss7.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from asveren@ulticom.com on Thu, Sep 21, 2006 at 09:34:13AM -0400 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 0bc60ec82efc80c84b8d02f4b0e4de22 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga, Tolga Asveren wrote: (Thu, 21 Sep 2006 09:34:13) > Brian, > > Addressing link failure does not correspond to host redundancy but to > network interface/network redundancy, which is addressed by SCTP > multihoming. Well, no. See Figure A.11/Q.705. Also, SCTP multihoming does not address changeover of traffic between SGP belonging to the same SG, between ASP belonging to the same AS, or between SGs. All of these cases are changing traffic between associations. SCTP multihoming does not even address the failure of a single SGP. Nor does it even address taking an ASP or SGP in and out of service. http://www.ietf.org/internet-drafts/draft-bidulock-sigtran-corid-04.txt addresses all these points. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:43:10 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOpa-00032p-RK; Thu, 21 Sep 2006 09:43:10 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOpZ-00032k-Pv for sigtran@ietf.org; Thu, 21 Sep 2006 09:43:09 -0400 Received: from us-wkf-fwmain.comverse.com ([63.64.185.250] helo=us-wkf-interscan1.comverse.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQOp3-0007JF-3X for sigtran@ietf.org; Thu, 21 Sep 2006 09:43:09 -0400 Received: from us-nj-mail1.comverse.com (localhost.localdomain [127.0.0.1]) by us-wkf-interscan1.comverse.com (8.13.1/8.13.1) with ESMTP id k8LDgPJO020165; Thu, 21 Sep 2006 09:42:27 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 09:42:24 -0400 Message-ID: <849535E338E99741B7F7413F73253EDB04C1FF54@us-nj-mail1.comverse.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) thread-index: Acbdgy+wMqOiwWNGSLO/VBBfeRREDgAADVEA From: "Haresign Lincoln" To: "Tolga Asveren" , X-Spam-Score: 0.0 (/) X-Scan-Signature: e367d58950869b6582535ddf5a673488 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga, It would be possible to implement SCTP in an embedded on a NIC card with dual ports for supporting multihoming and the UA layers running on the host. If the NIC card failed (OR if a Tier 4 support engineering accidently unplugged a few power cables disabled a couple routers), we could loose some associations while still keeping others. Some type of "OPTIONAL" retrieval mechanism would go towards the 0% message loss that SS7 is striving towards. I'm not sure why you would oppose such a mechanism if it is optional. =20 Regards, Lincoln -----Original Message----- From: Tolga Asveren [mailto:asveren@ulticom.com]=20 Sent: Thursday, September 21, 2006 9:33 AM To: Satya_Prasad.Nemana@alcatel.com Cc: sigtran@ietf.org Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Satya, If SCTP association to ASP11 is lost, this implies that ASP11 host is down, because network redundancy is provided with SCTP multihoming and proper IP network engineering. When ASP11 is down, there is no way to retrieve anyhting. The possibility of loosing SCTP association without a host failure should be guranateed to be below some acceptable threshold value, i.e. really really low. BTW, your assumption of SCTP not being able to failover between paths with no message loss is not correct. SCTP does this without message loss and missequencing. Thanks, Tolga -----Original Message----- From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 9:27 AM To: Tolga Asveren Cc: sigtran@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Tolga, Consider the situation SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- SG1 in loadshared... SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. The current implementations do not have the capacity to retransmit the remaining 60 msgs... They are lost although we have ASP12 for redundancy purposes. Considering the case of Multi Homing also... even if ASP11 is multi homed and loses one path with a similar situation, there is still no chance of retransmitting the msgs as M3UA does not define any such method for retrieval .... Regards, Satya Prasad Tolga Asveren wrote: Satya, In M3UA network redundancy is provided by SCTP multihoming and host redundancy by using multiple ASPs for an AS. For the configuration you are mentioning, if the ASP host is down, there is no message retrieval possible in SS7 as well for the similar case. If the SCTP association is lost to an ASP, this shouldn't happen due to network problems (this property be guaranteed with SCTP multihoming and proper IP network configuration) and should indicate a host failure. Thanks, Tolga -----Original Message----- From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 5:05 AM To: rfc-editor@rfc-editor.org Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) A general comment on ASP failover cases, M3UA does not have any method of doing retrieval /retranamission Although SCTP does have the capability through multi homing, the ULP should have the request in place to do the retrieval/retransmission In the case of a single AS having only a single ASP configured, there is no chance of retrieval (but this is the most rare configuration as networks are configured not to go down with a single point of failure) In case the AS is configured with two ASPs and each having a different SCTP assoc with a single path in each of the assoc.. there is no chance of message retrieval... as per the current rfc. No idea if this was not felt important in a telecom network!! rfc-editor@rfc-editor.org wrote: A new Request for Comments is now available in online RFC libraries. RFC 4666 Title: Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA) Author: K. Morneault, Ed., J. Pastor-Balbas, Ed. Status: Standards Track Date: September 2006 Mailbox: kmorneau@cisco.com, j.javier.pastor@ericsson.com Pages: 124 Characters: 292991 Obsoletes: RFC3332 See-Also: I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt URL: http://www.rfc-editor.org/rfc/rfc4666.txt This memo defines a protocol for supporting the transport of any SS7 MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the services of the Stream Control Transmission Protocol. Also, provision is made for protocol elements that enable a seamless operation of the MTP3-User peers in the SS7 and IP domains. This protocol would be used between a Signalling Gateway (SG) and a Media Gateway Controller (MGC) or IP-resident Database, or between two IP-based applications. It is assumed that the SG receives SS7 signalling over a standard SS7 interface using the SS7 Message Transfer Part (MTP) to provide transport. This document obsoletes RFC 3332. [STANDARDS TRACK] This document is a product of the Signaling Transport Working Group of the IETF. This is now a Proposed Standard Protocol. STANDARDS TRACK: This document specifies an Internet standards track protocol for the Internet community,and requests discussion and suggestions for improvements.Please refer to the current edition of the Internet Official Protocol Standards (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF list and the RFC-DIST list. Requests to be added to or deleted from the IETF distribution list should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or deleted from the RFC-DIST distribution list should be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG. Details on obtaining RFCs via FTP or EMAIL may be obtained by sending an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body help: ways_to_get_rfcs. For example: To: rfc-info@RFC-EDITOR.ORG Subject: getting rfcs help: ways_to_get_rfcs Requests for special distribution should be addressed to either the author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. Submissions for Requests for Comments should be sent to RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC Authors, for further information. Joyce K. Reynolds and Sandy Ginoza USC/Information Sciences Institute ... _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:53:57 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOze-0000Yw-SF; Thu, 21 Sep 2006 09:53:34 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQOzd-0000Sp-Km for sigtran@ietf.org; Thu, 21 Sep 2006 09:53:33 -0400 Received: from bw.ulticom.com ([208.255.120.38]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQOzX-0001sj-Di for sigtran@ietf.org; Thu, 21 Sep 2006 09:53:33 -0400 Received: from colby.ulticom.com (colby.ulticom.com [192.73.206.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bw.ulticom.com (BorderWare MXtreme Mail Firewall) with ESMTP id 4AA911A7D0; Thu, 21 Sep 2006 09:53:26 -0400 (EDT) Received: from pcasveren (pc-asveren.ulticom.com [172.25.33.55]) by colby.ulticom.com (8.13.4/8.12.10) with SMTP id k8LDrPDC010094; Thu, 21 Sep 2006 09:53:26 -0400 (EDT) From: "Tolga Asveren" To: "Haresign Lincoln" Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 09:51:56 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <849535E338E99741B7F7413F73253EDB04C1FF41@us-nj-mail1.comverse.com> Importance: Normal Received-SPF: none X-Spam-Score: 0.0 (/) X-Scan-Signature: e1924de3f9fb68e58c31920136007eb1 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Lincoln, Please see for comments below. Thanks, Tolga -----Original Message----- From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] Sent: Thursday, September 21, 2006 9:40 AM To: Satya_Prasad.Nemana@alcatel.com; Tolga Asveren Cc: sigtran@ietf.org Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Personally, I would back some type of mechanism for retrieval. Tolga, I agree that in an ideal world, we should never loose associations except for the case of host failure. In reality, we are seeing all sorts of scenarios: 1. Some switches/networks require us to run multiple associations to the same host to improve performance. [TOLGA]What is the reason for that? If there is not enough bandwidth on the LAN/IP network, how does it help to have multiple SCTP associations (or are you referring to a different scenario)? 2. Multihomed associations can fail (daul port NIC failure with SCTP running on the NIC) while the host remains running. [TOLGA]Yes, of course they can. My point is, the possibility of this happening should be guaranteed to be lower than an acceptable value. SIGTRAN protocols run over IP, which implies that IP network design has something to do with their performance and reliability (Isn't the same true for SS7 links, that underlying topology must be engineered?). I would back Brian's CORID draft. [TOLGA]I won't, unless I see something which is necessary and not addressed by the current mechanism (or can't be addressed by some extension, which is following the same philosophy witht he existing mechanism). Regards, Lincoln From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 9:27 AM To: Tolga Asveren Cc: sigtran@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Tolga, Consider the situation SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- SG1 in loadshared... SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. The current implementations do not have the capacity to retransmit the remaining 60 msgs... They are lost although we have ASP12 for redundancy purposes. Considering the case of Multi Homing also... even if ASP11 is multi homed and loses one path with a similar situation, there is still no chance of retransmitting the msgs as M3UA does not define any such method for retrieval .... Regards, Satya Prasad Tolga Asveren wrote: Satya, In M3UA network redundancy is provided by SCTP multihoming and host redundancy by using multiple ASPs for an AS. For the configuration you are mentioning, if the ASP host is down, there is no message retrieval possible in SS7 as well for the similar case. If the SCTP association is lost to an ASP, this shouldn't happen due to network problems (this property be guaranteed with SCTP multihoming and proper IP network configuration) and should indicate a host failure. Thanks, Tolga -----Original Message----- From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 5:05 AM To: rfc-editor@rfc-editor.org Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) A general comment on ASP failover cases, M3UA does not have any method of doing retrieval /retranamission Although SCTP does have the capability through multi homing, the ULP should have the request in place to do the retrieval/retransmission In the case of a single AS having only a single ASP configured, there is no chance of retrieval (but this is the most rare configuration as networks are configured not to go down with a single point of failure) In case the AS is configured with two ASPs and each having a different SCTP assoc with a single path in each of the assoc.. there is no chance of message retrieval... as per the current rfc. No idea if this was not felt important in a telecom network!! rfc-editor@rfc-editor.org wrote: A new Request for Comments is now available in online RFC libraries. RFC 4666 Title: Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA) Author: K. Morneault, Ed., J. Pastor-Balbas, Ed. Status: Standards Track Date: September 2006 Mailbox: kmorneau@cisco.com, j.javier.pastor@ericsson.com Pages: 124 Characters: 292991 Obsoletes: RFC3332 See-Also: I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt URL: http://www.rfc-editor.org/rfc/rfc4666.txt This memo defines a protocol for supporting the transport of any SS7 MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the services of the Stream Control Transmission Protocol. Also, provision is made for protocol elements that enable a seamless operation of the MTP3-User peers in the SS7 and IP domains. This protocol would be used between a Signalling Gateway (SG) and a Media Gateway Controller (MGC) or IP-resident Database, or between two IP-based applications. It is assumed that the SG receives SS7 signalling over a standard SS7 interface using the SS7 Message Transfer Part (MTP) to provide transport. This document obsoletes RFC 3332. [STANDARDS TRACK] This document is a product of the Signaling Transport Working Group of the IETF. This is now a Proposed Standard Protocol. STANDARDS TRACK: This document specifies an Internet standards track protocol for the Internet community,and requests discussion and suggestions for improvements.Please refer to the current edition of the Internet Official Protocol Standards (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF list and the RFC-DIST list. Requests to be added to or deleted from the IETF distribution list should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or deleted from the RFC-DIST distribution list should be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG. Details on obtaining RFCs via FTP or EMAIL may be obtained by sending an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body help: ways_to_get_rfcs. For example: To: rfc-info@RFC-EDITOR.ORG Subject: getting rfcs help: ways_to_get_rfcs Requests for special distribution should be addressed to either the author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. Submissions for Requests for Comments should be sent to RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC Authors, for further information. Joyce K. Reynolds and Sandy Ginoza USC/Information Sciences Institute ... _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:55:33 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQP1Z-0001UJ-N6; Thu, 21 Sep 2006 09:55:33 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQP1Y-0001UE-D6 for sigtran@ietf.org; Thu, 21 Sep 2006 09:55:32 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQP1D-0002BU-Pe for sigtran@ietf.org; Thu, 21 Sep 2006 09:55:32 -0400 Received: from ns.pigworks.openss7.net (IDENT:pYKfuG3fe3LPR1w/a5ijXSZjaDYI7c51@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LDtAD24351; Thu, 21 Sep 2006 07:55:10 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LDtAJ31182; Thu, 21 Sep 2006 07:55:10 -0600 Date: Thu, 21 Sep 2006 07:55:10 -0600 From: "Brian F. G. Bidulock" To: Haresign Lincoln Subject: Re: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921075510.C30616@openss7.org> Mail-Followup-To: Haresign Lincoln , Tolga Asveren , Satya_Prasad.Nemana@alcatel.com, sigtran@ietf.org References: <849535E338E99741B7F7413F73253EDB04C1FF54@us-nj-mail1.comverse.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <849535E338E99741B7F7413F73253EDB04C1FF54@us-nj-mail1.comverse.com>; from Lincoln.Haresign@comverse.com on Thu, Sep 21, 2006 at 09:42:24AM -0400 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: e5ba305d0e64821bf3d8bc5d3bb07228 Cc: sigtran@ietf.org, Satya_Prasad.Nemana@alcatel.com, Tolga Asveren X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Lincoln, My ISP powers their DSLAMs off of commercial power. (And they are also the incumbent phone company.) There are in fact many maintenance reasons for withdrawing traffic from a node (e.g. SGP). Maintenance. Software upgrade. Network reconfiguration. SS7 handles these through the management and inhibition of signalling links using the same set of procedures that are used for failure. The management reasons do not include failure. In the draft, I highlight the race condition between two SGP when traffic is switched between them. Without these procedures it is unlikely that one could switch traffic on, say, an high capacity HLR, without risking either message missequencing from prematurely divering traffic to the alternate SGP, or risking widespread transaction failure by delaying the traffic too long. A protocol approach can switch traffic almost instantaneously, and with little risk. Just taking one ASP in the pool down for software upgraed on a big HLR could cause havoc in the network. As things stand, you better do it at 3:00 am. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:57:42 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQP3W-0003Ck-8X; Thu, 21 Sep 2006 09:57:34 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQP3U-0003CH-TG for sigtran@ietf.org; Thu, 21 Sep 2006 09:57:32 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQP30-0002Rj-UY for sigtran@ietf.org; Thu, 21 Sep 2006 09:57:32 -0400 Received: from ns.pigworks.openss7.net (IDENT:Qs9kXRLmEG5P/1mWzKwZpbtc5SpkQTdm@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LDv2D24381; Thu, 21 Sep 2006 07:57:02 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LDv1k31208; Thu, 21 Sep 2006 07:57:01 -0600 Date: Thu, 21 Sep 2006 07:57:01 -0600 From: "Brian F. G. Bidulock" To: Tolga Asveren Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921075701.D30616@openss7.org> Mail-Followup-To: Tolga Asveren , Haresign Lincoln , sigtran@ietf.org References: <849535E338E99741B7F7413F73253EDB04C1FF41@us-nj-mail1.comverse.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from asveren@ulticom.com on Thu, Sep 21, 2006 at 09:51:56AM -0400 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 856eb5f76e7a34990d1d457d8e8e5b7f Cc: sigtran@ietf.org, Haresign Lincoln X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga, Tolga Asveren wrote: (Thu, 21 Sep 2006 09:51:56) > > I would back Brian's CORID draft. > [TOLGA]I won't, unless I see something which is necessary and not addressed > by the current mechanism (or can't be addressed by some extension, which is > following the same philosophy witht he existing mechanism). There is no existing mechanism in M3UA. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:59:01 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQP4v-00049x-4a; Thu, 21 Sep 2006 09:59:01 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQP4t-00049j-R9 for sigtran@ietf.org; Thu, 21 Sep 2006 09:58:59 -0400 Received: from us-wkf-fwmain.comverse.com ([63.64.185.250] helo=us-wkf-interscan1.comverse.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQP4e-0002kX-6y for sigtran@ietf.org; Thu, 21 Sep 2006 09:58:59 -0400 Received: from us-nj-mail1.comverse.com (localhost.localdomain [127.0.0.1]) by us-wkf-interscan1.comverse.com (8.13.1/8.13.1) with ESMTP id k8LDwdT7020986; Thu, 21 Sep 2006 09:58:41 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 09:58:38 -0400 Message-ID: <849535E338E99741B7F7413F73253EDB04C1FFB8@us-nj-mail1.comverse.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) thread-index: AcbdhXjvmZ6/XneERwKvOG86HgAr6QAADFzQ From: "Haresign Lincoln" To: "Tolga Asveren" X-Spam-Score: 0.0 (/) X-Scan-Signature: 6907f330301e69261fa73bed91449a20 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga, We have run in to some switches where the SCTP is located on NIC cards. The NIC cards bottleneck. So they use multiple NICs to get improved performance. It has nothing to do with the LAN/WAN itself. Are you denying below that SS7 links failed? In a properly engineered network, and SS7 link should never fail. But they do. In a properly engineered IP network, associations should never fail. But they do. Lincoln -----Original Message----- From: Tolga Asveren [mailto:asveren@ulticom.com]=20 Sent: Thursday, September 21, 2006 9:52 AM To: Haresign Lincoln Cc: sigtran@ietf.org Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Lincoln, Please see for comments below. Thanks, Tolga -----Original Message----- From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] Sent: Thursday, September 21, 2006 9:40 AM To: Satya_Prasad.Nemana@alcatel.com; Tolga Asveren Cc: sigtran@ietf.org Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Personally, I would back some type of mechanism for retrieval. Tolga, I agree that in an ideal world, we should never loose associations except for the case of host failure. In reality, we are seeing all sorts of scenarios: 1. Some switches/networks require us to run multiple associations to the same host to improve performance. [TOLGA]What is the reason for that? If there is not enough bandwidth on the LAN/IP network, how does it help to have multiple SCTP associations (or are you referring to a different scenario)? 2. Multihomed associations can fail (daul port NIC failure with SCTP running on the NIC) while the host remains running. [TOLGA]Yes, of course they can. My point is, the possibility of this happening should be guaranteed to be lower than an acceptable value. SIGTRAN protocols run over IP, which implies that IP network design has something to do with their performance and reliability (Isn't the same true for SS7 links, that underlying topology must be engineered?). I would back Brian's CORID draft. [TOLGA]I won't, unless I see something which is necessary and not addressed by the current mechanism (or can't be addressed by some extension, which is following the same philosophy witht he existing mechanism). Regards, Lincoln From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 9:27 AM To: Tolga Asveren Cc: sigtran@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Tolga, Consider the situation SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- SG1 in loadshared... SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. The current implementations do not have the capacity to retransmit the remaining 60 msgs... They are lost although we have ASP12 for redundancy purposes. Considering the case of Multi Homing also... even if ASP11 is multi homed and loses one path with a similar situation, there is still no chance of retransmitting the msgs as M3UA does not define any such method for retrieval .... Regards, Satya Prasad Tolga Asveren wrote: Satya, In M3UA network redundancy is provided by SCTP multihoming and host redundancy by using multiple ASPs for an AS. For the configuration you are mentioning, if the ASP host is down, there is no message retrieval possible in SS7 as well for the similar case. If the SCTP association is lost to an ASP, this shouldn't happen due to network problems (this property be guaranteed with SCTP multihoming and proper IP network configuration) and should indicate a host failure. Thanks, Tolga -----Original Message----- From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 5:05 AM To: rfc-editor@rfc-editor.org Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) A general comment on ASP failover cases, M3UA does not have any method of doing retrieval /retranamission Although SCTP does have the capability through multi homing, the ULP should have the request in place to do the retrieval/retransmission In the case of a single AS having only a single ASP configured, there is no chance of retrieval (but this is the most rare configuration as networks are configured not to go down with a single point of failure) In case the AS is configured with two ASPs and each having a different SCTP assoc with a single path in each of the assoc.. there is no chance of message retrieval... as per the current rfc. No idea if this was not felt important in a telecom network!! rfc-editor@rfc-editor.org wrote: A new Request for Comments is now available in online RFC libraries. RFC 4666 Title: Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA) Author: K. Morneault, Ed., J. Pastor-Balbas, Ed. Status: Standards Track Date: September 2006 Mailbox: kmorneau@cisco.com, j.javier.pastor@ericsson.com Pages: 124 Characters: 292991 Obsoletes: RFC3332 See-Also: I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt URL: http://www.rfc-editor.org/rfc/rfc4666.txt This memo defines a protocol for supporting the transport of any SS7 MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the services of the Stream Control Transmission Protocol. Also, provision is made for protocol elements that enable a seamless operation of the MTP3-User peers in the SS7 and IP domains. This protocol would be used between a Signalling Gateway (SG) and a Media Gateway Controller (MGC) or IP-resident Database, or between two IP-based applications. It is assumed that the SG receives SS7 signalling over a standard SS7 interface using the SS7 Message Transfer Part (MTP) to provide transport. This document obsoletes RFC 3332. [STANDARDS TRACK] This document is a product of the Signaling Transport Working Group of the IETF. This is now a Proposed Standard Protocol. STANDARDS TRACK: This document specifies an Internet standards track protocol for the Internet community,and requests discussion and suggestions for improvements.Please refer to the current edition of the Internet Official Protocol Standards (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF list and the RFC-DIST list. Requests to be added to or deleted from the IETF distribution list should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or deleted from the RFC-DIST distribution list should be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG. Details on obtaining RFCs via FTP or EMAIL may be obtained by sending an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body help: ways_to_get_rfcs. For example: To: rfc-info@RFC-EDITOR.ORG Subject: getting rfcs help: ways_to_get_rfcs Requests for special distribution should be addressed to either the author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. Submissions for Requests for Comments should be sent to RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC Authors, for further information. Joyce K. Reynolds and Sandy Ginoza USC/Information Sciences Institute ... _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 09:59:37 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQP5N-00057h-Qz; Thu, 21 Sep 2006 09:59:29 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQP5M-000517-Gi for sigtran@ietf.org; Thu, 21 Sep 2006 09:59:28 -0400 Received: from bw.ulticom.com ([208.255.120.38]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQP5B-0002w0-Q8 for sigtran@ietf.org; Thu, 21 Sep 2006 09:59:28 -0400 Received: from colby.ulticom.com (colby.ulticom.com [192.73.206.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bw.ulticom.com (BorderWare MXtreme Mail Firewall) with ESMTP id CD9C043E75; Thu, 21 Sep 2006 09:59:16 -0400 (EDT) Received: from pcasveren (pc-asveren.ulticom.com [172.25.33.55]) by colby.ulticom.com (8.13.4/8.12.10) with SMTP id k8LDxEux010851; Thu, 21 Sep 2006 09:59:14 -0400 (EDT) From: "Tolga Asveren" To: "Haresign Lincoln" Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 09:57:44 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <849535E338E99741B7F7413F73253EDB04C1FF54@us-nj-mail1.comverse.com> Importance: Normal Received-SPF: none X-Spam-Score: 0.0 (/) X-Scan-Signature: c2e58d9873012c90703822e287241385 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Lincoln, The SCTP implementation you mentioned is of course possible, but considering the role of SCTP and its multihoming capability in SIGTRAN, I wouldn't use such a SCTP card for my deployment, because the rationale behind using SCTP for SIGTRAN is to provide network interface/network reliability. BTW, for the equivalent of this in SS7, what would happen if I use a single card with 16 links? Isn't it the same problem, if the card dies, I loose everything. The reason I am against the mechanism is because it is againt the main principles of SIGTRAN protocols and I don't think there is a real problem (but this of course is just my personal opinion). To me, the correct aproach is to make people aware how M3UA addresses network interface/network/host redundancy and let them engineer their IP networks properly. Thanks, Tolga > -----Original Message----- > From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] > Sent: Thursday, September 21, 2006 9:42 AM > To: Tolga Asveren; Satya_Prasad.Nemana@alcatel.com > Cc: sigtran@ietf.org > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga, > > It would be possible to implement SCTP in an embedded on a NIC card with > dual ports for supporting multihoming and the UA layers running on the > host. If the NIC card failed (OR if a Tier 4 support engineering > accidently unplugged a few power cables disabled a couple routers), we > could loose some associations while still keeping others. > > Some type of "OPTIONAL" retrieval mechanism would go towards the 0% > message loss that SS7 is striving towards. I'm not sure why you would > oppose such a mechanism if it is optional. > > Regards, > Lincoln > > -----Original Message----- > From: Tolga Asveren [mailto:asveren@ulticom.com] > Sent: Thursday, September 21, 2006 9:33 AM > To: Satya_Prasad.Nemana@alcatel.com > Cc: sigtran@ietf.org > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > Satya, > > If SCTP association to ASP11 is lost, this implies that ASP11 host is > down, because network redundancy is provided with SCTP multihoming and > proper IP network engineering. When ASP11 is down, there is no way to > retrieve anyhting. The possibility of loosing SCTP association without a > host failure should be guranateed to be below some acceptable threshold > value, i.e. > really really low. > > BTW, your assumption of SCTP not being able to failover between paths > with no message loss is not correct. SCTP does this without message loss > and missequencing. > > Thanks, > Tolga > -----Original Message----- > From: Satya Prasad Nemana > [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] > Sent: Thursday, September 21, 2006 9:27 AM > To: Tolga Asveren > Cc: sigtran@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga, > > Consider the situation > > SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- > SG1 in loadshared... > SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. > When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. > The current implementations do not have the capacity to retransmit the > remaining 60 msgs... > They are lost although we have ASP12 for redundancy purposes. > > Considering the case of Multi Homing also... > even if ASP11 is multi homed and loses one path with a similar > situation, there is still no chance of retransmitting the msgs as M3UA > does not define any such method for retrieval .... > > Regards, > Satya Prasad > > > > Tolga Asveren wrote: > > Satya, > > In M3UA network redundancy is provided by SCTP multihoming and host > redundancy by using multiple ASPs for an AS. > > For the configuration you are mentioning, if the ASP host is down, there > is no message retrieval possible in SS7 as well for the similar case. If > the SCTP association is lost to an ASP, this shouldn't happen due to > network problems (this property be guaranteed with SCTP multihoming and > proper IP network configuration) and should indicate a host failure. > > Thanks, > Tolga > > > -----Original Message----- > From: Satya Prasad Nemana > [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] > Sent: Thursday, September 21, 2006 5:05 AM > To: rfc-editor@rfc-editor.org > Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > A general comment on ASP failover cases, M3UA does not have any method > of doing retrieval /retranamission Although SCTP does have the > capability through multi homing, the ULP should have the request in > place to do the retrieval/retransmission In the case of a single AS > having only a single ASP configured, there is no chance of retrieval > (but this is the most rare configuration as networks are configured not > to go down with a single point of failure) In case the AS is configured > with two ASPs and each having a different SCTP assoc with a single path > in each of the assoc.. > there is no chance of message retrieval... as per the current rfc. > > No idea if this was not felt important in a telecom network!! > > rfc-editor@rfc-editor.org wrote: > > > A new Request for Comments is now available in online RFC libraries. > > > RFC 4666 > > Title: Signaling System 7 (SS7) Message > Transfer Part 3 (MTP3) - User > Adaptation Layer (M3UA) > Author: K. Morneault, Ed., > J. Pastor-Balbas, Ed. > Status: Standards Track > Date: September 2006 > Mailbox: kmorneau@cisco.com, > j.javier.pastor@ericsson.com > Pages: 124 > Characters: 292991 > Obsoletes: RFC3332 > See-Also: > > I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt > > URL: http://www.rfc-editor.org/rfc/rfc4666.txt > > This memo defines a protocol for supporting the transport of any SS7 > MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the > services of the Stream Control Transmission Protocol. Also, provision > is made for protocol elements that enable a seamless operation of the > MTP3-User peers in the SS7 and IP domains. This protocol would be used > between a Signalling Gateway (SG) and a Media Gateway Controller (MGC) > or IP-resident Database, or between two IP-based applications. It is > assumed that the SG receives SS7 signalling over a standard SS7 > interface using the SS7 Message Transfer Part (MTP) to provide > transport. This document obsoletes RFC 3332. [STANDARDS TRACK] > > This document is a product of the Signaling Transport Working Group of > the IETF. > > This is now a Proposed Standard Protocol. > > STANDARDS TRACK: This document specifies an Internet standards track > protocol for the Internet community,and requests discussion and > suggestions for improvements.Please refer to the current edition of the > Internet Official Protocol Standards (STD 1) for the standardization > state and status of this protocol. Distribution of this memo is > unlimited. > > This announcement is sent to the IETF list and the RFC-DIST list. > Requests to be added to or deleted from the IETF distribution list > should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or > deleted from the RFC-DIST distribution list should be sent to > RFC-DIST-REQUEST@RFC-EDITOR.ORG. > > Details on obtaining RFCs via FTP or EMAIL may be obtained by sending an > EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body > > help: ways_to_get_rfcs. For example: > > To: rfc-info@RFC-EDITOR.ORG > Subject: getting rfcs > > help: ways_to_get_rfcs > > Requests for special distribution should be addressed to either the > author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless > specifically noted otherwise on the RFC itself, all RFCs are for > unlimited distribution. > > Submissions for Requests for Comments should be sent to > RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC > Authors, for further information. > > > Joyce K. Reynolds and Sandy Ginoza > USC/Information Sciences Institute > > ... > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 10:06:32 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPBN-0000wY-M0; Thu, 21 Sep 2006 10:05:41 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPBM-0000wT-9K for sigtran@ietf.org; Thu, 21 Sep 2006 10:05:40 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQPBH-0003zJ-R4 for sigtran@ietf.org; Thu, 21 Sep 2006 10:05:40 -0400 Received: from ns.pigworks.openss7.net (IDENT:nWdnI2s36Cg1hT7vNGy8Y7Z42SBKYdix@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LE5YD24562; Thu, 21 Sep 2006 08:05:34 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LE5Yn31504; Thu, 21 Sep 2006 08:05:34 -0600 Date: Thu, 21 Sep 2006 08:05:33 -0600 From: "Brian F. G. Bidulock" To: Haresign Lincoln Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921080533.E30616@openss7.org> Mail-Followup-To: Haresign Lincoln , Tolga Asveren , sigtran@ietf.org References: <849535E338E99741B7F7413F73253EDB04C1FFB8@us-nj-mail1.comverse.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <849535E338E99741B7F7413F73253EDB04C1FFB8@us-nj-mail1.comverse.com>; from Lincoln.Haresign@comverse.com on Thu, Sep 21, 2006 at 09:58:38AM -0400 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 9466e0365fc95844abaf7c3f15a05c7d Cc: sigtran@ietf.org, Tolga Asveren X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Lincoln, A properly engineered network takes failure into account, rather than denying its existence. Nevertheless, the CORID procedures also address divering traffic for maintenance reasons, not just failure. --brian Haresign Lincoln wrote: (Thu, 21 Sep 2006 09:58:38) > Tolga, > > We have run in to some switches where the SCTP is located on NIC cards. > The NIC cards bottleneck. So they use multiple NICs to get improved > performance. It has nothing to do with the LAN/WAN itself. > > Are you denying below that SS7 links failed? In a properly engineered > network, and SS7 link should never fail. But they do. > > In a properly engineered IP network, associations should never fail. > But they do. > > Lincoln -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 10:08:05 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPDh-0002jc-0J; Thu, 21 Sep 2006 10:08:05 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPDf-0002hr-Is for sigtran@ietf.org; Thu, 21 Sep 2006 10:08:03 -0400 Received: from bw.ulticom.com ([208.255.120.38]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQPDX-0004gh-Pz for sigtran@ietf.org; Thu, 21 Sep 2006 10:08:03 -0400 Received: from colby.ulticom.com (colby.ulticom.com [192.73.206.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bw.ulticom.com (BorderWare MXtreme Mail Firewall) with ESMTP id 88AC29E345; Thu, 21 Sep 2006 10:07:55 -0400 (EDT) Received: from pcasveren (pc-asveren.ulticom.com [172.25.33.55]) by colby.ulticom.com (8.13.4/8.12.10) with SMTP id k8LE7ruu012023; Thu, 21 Sep 2006 10:07:54 -0400 (EDT) From: "Tolga Asveren" To: "Haresign Lincoln" Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 10:06:23 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <849535E338E99741B7F7413F73253EDB04C1FFB8@us-nj-mail1.comverse.com> Importance: Normal Received-SPF: none X-Spam-Score: 0.0 (/) X-Scan-Signature: f8ee348dcc4be4a59bc395f7cd6343ad Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Lincoln, What corresponds to a SS7 link(s) is (from redundancy point of view), a path in SCTP, not the SCTP association. One can have (in fact should have for NIC redundancy) a SCTP associtation spanning multiple NICs. In SS7, the goal is that some links are alive, not that all links are always up. Similarly with SCTP, you may loose a path but with proper enginnering loosing SCTP assocation with no host failure should be a very very samll probability (like loosing all links in SS7 with no host failure is very very small probability) For the switchs you are mentioning, they delibaretly (or just because of oversight) made a decision, which makes their SCTP not to address NIC failures. This is rally their problem. The same for the performance. Thanks, Tolga > -----Original Message----- > From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] > Sent: Thursday, September 21, 2006 9:59 AM > To: Tolga Asveren > Cc: sigtran@ietf.org > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga, > > We have run in to some switches where the SCTP is located on NIC cards. > The NIC cards bottleneck. So they use multiple NICs to get improved > performance. It has nothing to do with the LAN/WAN itself. > > Are you denying below that SS7 links failed? In a properly engineered > network, and SS7 link should never fail. But they do. > > In a properly engineered IP network, associations should never fail. > But they do. > > Lincoln > > > -----Original Message----- > From: Tolga Asveren [mailto:asveren@ulticom.com] > Sent: Thursday, September 21, 2006 9:52 AM > To: Haresign Lincoln > Cc: sigtran@ietf.org > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > Lincoln, > > Please see for comments below. > > Thanks, > Tolga > -----Original Message----- > From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] > Sent: Thursday, September 21, 2006 9:40 AM > To: Satya_Prasad.Nemana@alcatel.com; Tolga Asveren > Cc: sigtran@ietf.org > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Personally, I would back some type of mechanism for retrieval. > > Tolga, > > I agree that in an ideal world, we should never loose associations > except for the case of host failure. In reality, we are seeing all > sorts of > scenarios: > > 1. Some switches/networks require us to run multiple associations to the > same host to improve performance. > [TOLGA]What is the reason for that? If there is not enough bandwidth on > the LAN/IP network, how does it help to have multiple SCTP associations > (or are you referring to a different scenario)? > > 2. Multihomed associations can fail (daul port NIC failure with SCTP > running on the NIC) while the host remains running. > [TOLGA]Yes, of course they can. My point is, the possibility of this > happening should be guaranteed to be lower than an acceptable value. > SIGTRAN protocols run over IP, which implies that IP network design has > something to do with their performance and reliability (Isn't the same > true for SS7 links, that underlying topology must be engineered?). > > I would back Brian's CORID draft. > [TOLGA]I won't, unless I see something which is necessary and not > addressed by the current mechanism (or can't be addressed by some > extension, which is following the same philosophy witht he existing > mechanism). > > Regards, > Lincoln > > > > > From: Satya Prasad Nemana > [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] > Sent: Thursday, September 21, 2006 9:27 AM > To: Tolga Asveren > Cc: sigtran@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga, > > Consider the situation > > SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- > SG1 in loadshared... > SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. > When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. > The current implementations do not have the capacity to retransmit the > remaining 60 msgs... > They are lost although we have ASP12 for redundancy purposes. > > Considering the case of Multi Homing also... > even if ASP11 is multi homed and loses one path with a similar > situation, there is still no chance of retransmitting the msgs as M3UA > does not define any such method for retrieval .... > > Regards, > Satya Prasad > > > > Tolga Asveren wrote: > > Satya, > > In M3UA network redundancy is provided by SCTP multihoming and host > redundancy by using multiple ASPs for an AS. > > For the configuration you are mentioning, if the ASP host is down, there > is no message retrieval possible in SS7 as well for the similar case. If > the SCTP association is lost to an ASP, this shouldn't happen due to > network problems (this property be guaranteed with SCTP multihoming and > proper IP network configuration) and should indicate a host failure. > > Thanks, > Tolga > > > -----Original Message----- > From: Satya Prasad Nemana > [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] > Sent: Thursday, September 21, 2006 5:05 AM > To: rfc-editor@rfc-editor.org > Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > A general comment on ASP failover cases, M3UA does not have any method > of doing retrieval /retranamission Although SCTP does have the > capability through multi homing, the ULP should have the request in > place to do the retrieval/retransmission In the case of a single AS > having only a single ASP configured, there is no chance of retrieval > (but this is the most rare configuration as networks are configured not > to go down with a single point of failure) In case the AS is configured > with two ASPs and each having a different SCTP assoc with a single path > in each of the assoc.. > there is no chance of message retrieval... as per the current rfc. > > No idea if this was not felt important in a telecom network!! > > rfc-editor@rfc-editor.org wrote: > > > A new Request for Comments is now available in online RFC libraries. > > > RFC 4666 > > Title: Signaling System 7 (SS7) Message > Transfer Part 3 (MTP3) - User > Adaptation Layer (M3UA) > Author: K. Morneault, Ed., > J. Pastor-Balbas, Ed. > Status: Standards Track > Date: September 2006 > Mailbox: kmorneau@cisco.com, > j.javier.pastor@ericsson.com > Pages: 124 > Characters: 292991 > Obsoletes: RFC3332 > See-Also: > > I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt > > URL: http://www.rfc-editor.org/rfc/rfc4666.txt > > This memo defines a protocol for supporting the transport of any SS7 > MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the > services of the Stream Control Transmission Protocol. Also, provision > is made for protocol elements that enable a seamless operation of the > MTP3-User peers in the SS7 and IP domains. This protocol would be used > between a Signalling Gateway (SG) and a Media Gateway Controller (MGC) > or IP-resident Database, or between two IP-based applications. It is > assumed that the SG receives SS7 signalling over a standard SS7 > interface using the SS7 Message Transfer Part (MTP) to provide > transport. This document obsoletes RFC 3332. [STANDARDS TRACK] > > This document is a product of the Signaling Transport Working Group of > the IETF. > > This is now a Proposed Standard Protocol. > > STANDARDS TRACK: This document specifies an Internet standards track > protocol for the Internet community,and requests discussion and > suggestions for improvements.Please refer to the current edition of the > Internet Official Protocol Standards (STD 1) for the standardization > state and status of this protocol. Distribution of this memo is > unlimited. > > This announcement is sent to the IETF list and the RFC-DIST list. > Requests to be added to or deleted from the IETF distribution list > should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or > deleted from the RFC-DIST distribution list should be sent to > RFC-DIST-REQUEST@RFC-EDITOR.ORG. > > Details on obtaining RFCs via FTP or EMAIL may be obtained by sending an > EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body > > help: ways_to_get_rfcs. For example: > > To: rfc-info@RFC-EDITOR.ORG > Subject: getting rfcs > > help: ways_to_get_rfcs > > Requests for special distribution should be addressed to either the > author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless > specifically noted otherwise on the RFC itself, all RFCs are for > unlimited distribution. > > Submissions for Requests for Comments should be sent to > RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC > Authors, for further information. > > > Joyce K. Reynolds and Sandy Ginoza > USC/Information Sciences Institute > > ... > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 10:11:19 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPGh-0004HP-9i; Thu, 21 Sep 2006 10:11:11 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPGg-0004H8-Er for sigtran@ietf.org; Thu, 21 Sep 2006 10:11:10 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQMb8-0005HM-I1 for sigtran@ietf.org; Thu, 21 Sep 2006 07:20:12 -0400 Received: from ns.pigworks.openss7.net (IDENT:CX/J07doWJ6b8RpXk7MxKEuhfmk9uy72@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LBK5D20380; Thu, 21 Sep 2006 05:20:05 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LBK4Q23137; Thu, 21 Sep 2006 05:20:04 -0600 Date: Thu, 21 Sep 2006 05:20:04 -0600 From: "Brian F. G. Bidulock" To: Ramma Message-ID: <20060921052004.A22828@openss7.org> Mail-Followup-To: Ramma , sigtran References: <279c411a0609210229s33ba52d1xb9d446e8cae849d3@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <279c411a0609210229s33ba52d1xb9d446e8cae849d3@mail.gmail.com>; from rock.ramma@gmail.com on Thu, Sep 21, 2006 at 10:29:04AM +0100 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: de4f315c9369b71d7dd5909b42224370 Cc: sigtran Subject: [Sigtran] Re: Traffiic Mode : Help Please X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Ramma, Ramma wrote: (Thu, 21 Sep 2006 10:29:04) > I have tried to configure as above with my local node having one ASP > and I have configured myself to work in override mode but I am talking > to an AS which is working in loadshare mode. There is nothing in the spec requiring an implementation to support such an arrangement. It doesn't even sound useful to me. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 10:29:10 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPXq-0004mi-3Y; Thu, 21 Sep 2006 10:28:54 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPXo-0004ho-CE for sigtran@ietf.org; Thu, 21 Sep 2006 10:28:52 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQPQ0-0007Ki-Ns for sigtran@ietf.org; Thu, 21 Sep 2006 10:20:54 -0400 Received: from ns.pigworks.openss7.net (IDENT:a6oUP3xAWNhurZ+W8lXPe+B0oV2llGbJ@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LEKmD25205; Thu, 21 Sep 2006 08:20:48 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LEKl632527; Thu, 21 Sep 2006 08:20:47 -0600 Date: Thu, 21 Sep 2006 08:20:47 -0600 From: "Brian F. G. Bidulock" To: Tolga Asveren Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921082047.A32167@openss7.org> Mail-Followup-To: Tolga Asveren , Haresign Lincoln , sigtran@ietf.org References: <849535E338E99741B7F7413F73253EDB04C1FFB8@us-nj-mail1.comverse.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from asveren@ulticom.com on Thu, Sep 21, 2006 at 10:06:23AM -0400 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 1ac7cc0a4cd376402b85bc1961a86ac2 Cc: sigtran@ietf.org, Haresign Lincoln X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga, So you don't ever want to withdraw traffic for maintenance reasons? I remember Summa (now defunct) built a switch like that once: you had to turn it off to add a T1. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 10:40:58 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPj9-0003wZ-LX; Thu, 21 Sep 2006 10:40:35 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPj7-0003wU-Tp for sigtran@ietf.org; Thu, 21 Sep 2006 10:40:34 -0400 Received: from us-wkf-fwmain.comverse.com ([63.64.185.250] helo=us-wkf-interscan1.comverse.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQPj3-0002W1-Bs for sigtran@ietf.org; Thu, 21 Sep 2006 10:40:33 -0400 Received: from us-nj-mail1.comverse.com (localhost.localdomain [127.0.0.1]) by us-wkf-interscan1.comverse.com (8.13.1/8.13.1) with ESMTP id k8LEeQnb023472; Thu, 21 Sep 2006 10:40:27 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 10:40:25 -0400 Message-ID: <849535E338E99741B7F7413F73253EDB04C2006F@us-nj-mail1.comverse.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) thread-index: AcbdhiYDpsKQbZEmS8GWevlJX1QdpAAADdjw From: "Haresign Lincoln" To: "Tolga Asveren" X-Spam-Score: 0.0 (/) X-Scan-Signature: be922d419820e291bde1362184dc32fd Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga - 1) We have no control over what a customer or other vendor decides to do. 2) I'm not sure how you define the "main principles of SIGTRAN protocols". 3) I don't believe that this is equivalent to putting an entire linkset on one line card. I'm just talking about putting one multihomed association on one NIC card with SCTP running on that NIC. I still have multiple NICs. 4) This is happening in the real world and message loss is occurring. I would be great if the SIGTRAN community worked together to find a real solution rather than hoping that people will always implement the perfect solution in the perfect network. Regards, Lincoln=20 -----Original Message----- From: Tolga Asveren [mailto:asveren@ulticom.com]=20 Sent: Thursday, September 21, 2006 9:58 AM To: Haresign Lincoln Cc: sigtran@ietf.org Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Lincoln, The SCTP implementation you mentioned is of course possible, but considering the role of SCTP and its multihoming capability in SIGTRAN, I wouldn't use such a SCTP card for my deployment, because the rationale behind using SCTP for SIGTRAN is to provide network interface/network reliability. BTW, for the equivalent of this in SS7, what would happen if I use a single card with 16 links? Isn't it the same problem, if the card dies, I loose everything. The reason I am against the mechanism is because it is againt the main principles of SIGTRAN protocols and I don't think there is a real problem (but this of course is just my personal opinion). To me, the correct aproach is to make people aware how M3UA addresses network interface/network/host redundancy and let them engineer their IP networks properly. Thanks, Tolga > -----Original Message----- > From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] > Sent: Thursday, September 21, 2006 9:42 AM > To: Tolga Asveren; Satya_Prasad.Nemana@alcatel.com > Cc: sigtran@ietf.org > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message=20 > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga, > > It would be possible to implement SCTP in an embedded on a NIC card=20 > with dual ports for supporting multihoming and the UA layers running=20 > on the host. If the NIC card failed (OR if a Tier 4 support=20 > engineering accidently unplugged a few power cables disabled a couple=20 > routers), we could loose some associations while still keeping others. > > Some type of "OPTIONAL" retrieval mechanism would go towards the 0%=20 > message loss that SS7 is striving towards. I'm not sure why you would > oppose such a mechanism if it is optional. > > Regards, > Lincoln > > -----Original Message----- > From: Tolga Asveren [mailto:asveren@ulticom.com] > Sent: Thursday, September 21, 2006 9:33 AM > To: Satya_Prasad.Nemana@alcatel.com > Cc: sigtran@ietf.org > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message=20 > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > Satya, > > If SCTP association to ASP11 is lost, this implies that ASP11 host is=20 > down, because network redundancy is provided with SCTP multihoming and > proper IP network engineering. When ASP11 is down, there is no way to=20 > retrieve anyhting. The possibility of loosing SCTP association without > a host failure should be guranateed to be below some acceptable=20 > threshold value, i.e. > really really low. > > BTW, your assumption of SCTP not being able to failover between paths=20 > with no message loss is not correct. SCTP does this without message=20 > loss and missequencing. > > Thanks, > Tolga > -----Original Message----- > From: Satya Prasad Nemana > [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] > Sent: Thursday, September 21, 2006 9:27 AM > To: Tolga Asveren > Cc: sigtran@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message=20 > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga, > > Consider the situation > > SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- > SG1 in loadshared... > SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. > When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. > The current implementations do not have the capacity to retransmit the > remaining 60 msgs... > They are lost although we have ASP12 for redundancy purposes. > > Considering the case of Multi Homing also... > even if ASP11 is multi homed and loses one path with a similar=20 > situation, there is still no chance of retransmitting the msgs as M3UA > does not define any such method for retrieval .... > > Regards, > Satya Prasad > > > > Tolga Asveren wrote: > > Satya, > > In M3UA network redundancy is provided by SCTP multihoming and host=20 > redundancy by using multiple ASPs for an AS. > > For the configuration you are mentioning, if the ASP host is down,=20 > there is no message retrieval possible in SS7 as well for the similar=20 > case. If the SCTP association is lost to an ASP, this shouldn't happen > due to network problems (this property be guaranteed with SCTP=20 > multihoming and proper IP network configuration) and should indicate a host failure. > > Thanks, > Tolga > > > -----Original Message----- > From: Satya Prasad Nemana > [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] > Sent: Thursday, September 21, 2006 5:05 AM > To: rfc-editor@rfc-editor.org > Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message=20 > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > A general comment on ASP failover cases, M3UA does not have any method > of doing retrieval /retranamission Although SCTP does have the=20 > capability through multi homing, the ULP should have the request in=20 > place to do the retrieval/retransmission In the case of a single AS=20 > having only a single ASP configured, there is no chance of retrieval=20 > (but this is the most rare configuration as networks are configured =20 > not to go down with a single point of failure) In case the AS is=20 > configured with two ASPs and each having a different SCTP assoc with a > single path in each of the assoc.. > there is no chance of message retrieval... as per the current rfc. > > No idea if this was not felt important in a telecom network!! > > rfc-editor@rfc-editor.org wrote: > > > A new Request for Comments is now available in online RFC libraries. > > > RFC 4666 > > Title: Signaling System 7 (SS7) Message > Transfer Part 3 (MTP3) - User > Adaptation Layer (M3UA) > Author: K. Morneault, Ed., > J. Pastor-Balbas, Ed. > Status: Standards Track > Date: September 2006 > Mailbox: kmorneau@cisco.com, > j.javier.pastor@ericsson.com > Pages: 124 > Characters: 292991 > Obsoletes: RFC3332 > See-Also: > > I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt > > URL: http://www.rfc-editor.org/rfc/rfc4666.txt > > This memo defines a protocol for supporting the transport of any SS7=20 > MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the=20 > services of the Stream Control Transmission Protocol. Also, provision > is made for protocol elements that enable a seamless operation of the=20 > MTP3-User peers in the SS7 and IP domains. This protocol would be=20 > used between a Signalling Gateway (SG) and a Media Gateway Controller=20 > (MGC) or IP-resident Database, or between two IP-based applications. =20 > It is assumed that the SG receives SS7 signalling over a standard SS7=20 > interface using the SS7 Message Transfer Part (MTP) to provide=20 > transport. This document obsoletes RFC 3332. [STANDARDS TRACK] > > This document is a product of the Signaling Transport Working Group of > the IETF. > > This is now a Proposed Standard Protocol. > > STANDARDS TRACK: This document specifies an Internet standards track=20 > protocol for the Internet community,and requests discussion and=20 > suggestions for improvements.Please refer to the current edition of=20 > the Internet Official Protocol Standards (STD 1) for the=20 > standardization state and status of this protocol. Distribution of=20 > this memo is unlimited. > > This announcement is sent to the IETF list and the RFC-DIST list. > Requests to be added to or deleted from the IETF distribution list=20 > should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or=20 > deleted from the RFC-DIST distribution list should be sent to=20 > RFC-DIST-REQUEST@RFC-EDITOR.ORG. > > Details on obtaining RFCs via FTP or EMAIL may be obtained by sending=20 > an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body > > help: ways_to_get_rfcs. For example: > > To: rfc-info@RFC-EDITOR.ORG > Subject: getting rfcs > > help: ways_to_get_rfcs > > Requests for special distribution should be addressed to either the=20 > author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. =20 > Unless specifically noted otherwise on the RFC itself, all RFCs are=20 > for unlimited distribution. > > Submissions for Requests for Comments should be sent to=20 > RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to=20 > RFC Authors, for further information. > > > Joyce K. Reynolds and Sandy Ginoza > USC/Information Sciences Institute > > ... > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 10:53:27 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPvG-00037K-Jj; Thu, 21 Sep 2006 10:53:06 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQPvF-00037A-Rt for sigtran@ietf.org; Thu, 21 Sep 2006 10:53:05 -0400 Received: from stsc1260-eth-s1-s1p1-vip.va.neustar.com ([156.154.16.129] helo=chiedprmail1.ietf.org) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQOFI-0007py-Lk for sigtran@ietf.org; Thu, 21 Sep 2006 09:05:40 -0400 Received: from gw.openss7.com ([142.179.199.224]) by chiedprmail1.ietf.org with esmtp (Exim 4.43) id 1GQO5M-0001xA-Sq for sigtran@ietf.org; Thu, 21 Sep 2006 08:55:26 -0400 Received: from ns.pigworks.openss7.net (IDENT:UefEsXIGfiifAv0B3hXQQp8RtywjPEVc@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LCtND22959; Thu, 21 Sep 2006 06:55:23 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LCtMD29831; Thu, 21 Sep 2006 06:55:22 -0600 Date: Thu, 21 Sep 2006 06:55:22 -0600 From: "Brian F. G. Bidulock" To: Tolga Asveren Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921065522.A29648@openss7.org> Mail-Followup-To: Tolga Asveren , sigtran@ietf.org References: <451255A7.2050800@axes-mach01.usa.alcatel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from asveren@ulticom.com on Thu, Sep 21, 2006 at 08:31:44AM -0400 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: -2.4 (--) X-Scan-Signature: 7655788c23eb79e336f5f8ba8bce7906 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga, Tolga Asveren wrote: (Thu, 21 Sep 2006 08:31:44) > > For the configuration you are mentioning, if the ASP host is down, there is > no message retrieval possible in SS7 as well for the similar case. When a host (SP) fails in SS7, other SPs are still able to retrieve messages from their buffers and send them via alternate SPs. M3UA could too, particularly in the case where an SG fails and there are multiple SG as STP. Again, see: http://www.ietf.org/internet-drafts/draft-bidulock-sigtran-corid-04.txt --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 11:08:13 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQQ91-00044o-Ik; Thu, 21 Sep 2006 11:07:19 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQQ90-0003zm-7V for sigtran@ietf.org; Thu, 21 Sep 2006 11:07:18 -0400 Received: from bw.ulticom.com ([208.255.120.38]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQQ8w-0007yT-HB for sigtran@ietf.org; Thu, 21 Sep 2006 11:07:18 -0400 Received: from colby.ulticom.com (colby.ulticom.com [192.73.206.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bw.ulticom.com (BorderWare MXtreme Mail Firewall) with ESMTP id B3B421A75D for ; Thu, 21 Sep 2006 11:07:10 -0400 (EDT) Received: from pcasveren (pc-asveren.ulticom.com [172.25.33.55]) by colby.ulticom.com (8.13.4/8.12.10) with SMTP id k8LF74fO019422 for ; Thu, 21 Sep 2006 11:07:08 -0400 (EDT) From: "Tolga Asveren" To: Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 11:05:34 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <849535E338E99741B7F7413F73253EDB04C2006F@us-nj-mail1.comverse.com> Importance: Normal Received-SPF: none X-Spam-Score: 0.0 (/) X-Scan-Signature: 10dcc25e55b9b5f7d6ded516404bdc4c X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Lincoln, > -----Original Message----- > From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] > Sent: Thursday, September 21, 2006 10:40 AM > To: Tolga Asveren > Cc: sigtran@ietf.org > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga - > > 1) We have no control over what a customer or other vendor decides to > do. [TOLGA]Then why do we have protocols? If a node decides to follow some protocol, and if it deliberatly does not make use of some redundancy features provided in the protocol, I think this is really their problem. > > 2) I'm not sure how you define the "main principles of SIGTRAN > protocols". [TOLGA]Based on the mechanisms already defined in the protocol and the rationale behind them. I really don't like much to use the argument "Because the RFC says so" (because at so many places the language used is open to interpretation), but here it goes, from RFC3332 1.3.1 It is recommended that M3UA use the services of the Stream Control Transmission Protocol (SCTP) [17] as the underlying reliable common signalling transport protocol. This is to take advantage of various SCTP features such as: - Explicit packet-oriented delivery (not stream-oriented), - Sequenced delivery of user messages within multiple streams, with an option for order-of-arrival delivery of individual user messages, - Optional multiplexing of user messages into SCTP datagrams, - Network-level fault tolerance through support of multi-homing at either or both ends of an association, - Resistance to flooding and masquerade attacks, and - Data segmentation to conform to discovered path MTU size. Basically the tool for network redundancy is identified as SCTP multihoming. > 3) I don't believe that this is equivalent to putting an entire linkset > on one line card. I'm just talking about putting one multihomed > association on one NIC card with SCTP running on that NIC. I still have > multiple NICs. [TOLGA]But those NICs are not used by your M3UA node. If we want to use them, the SCTP endpoint should span them as well. > > 4) This is happening in the real world and message loss is occurring. I > would be great if the SIGTRAN community worked together to find a real > solution rather than hoping that people will always implement the > perfect solution in the perfect network. [TOLGA]We need to think, why this is happening in real world. Is it because the protocol misses something or is it because people do not implement/deploy the protocol properly? I think the real solution is that people make use of SCTP multihoming and engineer their IP networks properly (like they engineer the physical topology in SS7 as well). Let's assume for a while we define a new mechanism, would this help it people don't impelement it right (or don't implement it at all)? > > Regards, > Lincoln > > -----Original Message----- > From: Tolga Asveren [mailto:asveren@ulticom.com] > Sent: Thursday, September 21, 2006 9:58 AM > To: Haresign Lincoln > Cc: sigtran@ietf.org > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > Lincoln, > > The SCTP implementation you mentioned is of course possible, but > considering the role of SCTP and its multihoming capability in SIGTRAN, > I wouldn't use such a SCTP card for my deployment, because the rationale > behind using SCTP for SIGTRAN is to provide network interface/network > reliability. > > BTW, for the equivalent of this in SS7, what would happen if I use a > single card with 16 links? Isn't it the same problem, if the card dies, > I loose everything. > > The reason I am against the mechanism is because it is againt the main > principles of SIGTRAN protocols and I don't think there is a real > problem (but this of course is just my personal opinion). To me, the > correct aproach is to make people aware how M3UA addresses network > interface/network/host redundancy and let them engineer their IP > networks properly. > > Thanks, > Tolga > > > -----Original Message----- > > From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] > > Sent: Thursday, September 21, 2006 9:42 AM > > To: Tolga Asveren; Satya_Prasad.Nemana@alcatel.com > > Cc: sigtran@ietf.org > > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message > > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > > > Tolga, > > > > It would be possible to implement SCTP in an embedded on a NIC card > > with dual ports for supporting multihoming and the UA layers running > > on the host. If the NIC card failed (OR if a Tier 4 support > > engineering accidently unplugged a few power cables disabled a couple > > routers), we could loose some associations while still keeping others. > > > > Some type of "OPTIONAL" retrieval mechanism would go towards the 0% > > message loss that SS7 is striving towards. I'm not sure why you would > > > oppose such a mechanism if it is optional. > > > > Regards, > > Lincoln > > > > -----Original Message----- > > From: Tolga Asveren [mailto:asveren@ulticom.com] > > Sent: Thursday, September 21, 2006 9:33 AM > > To: Satya_Prasad.Nemana@alcatel.com > > Cc: sigtran@ietf.org > > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message > > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > Satya, > > > > If SCTP association to ASP11 is lost, this implies that ASP11 host is > > down, because network redundancy is provided with SCTP multihoming and > > > proper IP network engineering. When ASP11 is down, there is no way to > > retrieve anyhting. The possibility of loosing SCTP association without > > > a host failure should be guranateed to be below some acceptable > > threshold value, i.e. > > really really low. > > > > BTW, your assumption of SCTP not being able to failover between paths > > with no message loss is not correct. SCTP does this without message > > loss and missequencing. > > > > Thanks, > > Tolga > > -----Original Message----- > > From: Satya Prasad Nemana > > [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] > > Sent: Thursday, September 21, 2006 9:27 AM > > To: Tolga Asveren > > Cc: sigtran@ietf.org > > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message > > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > > > Tolga, > > > > Consider the situation > > > > SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- > > SG1 in loadshared... > > SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. > > When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. > > The current implementations do not have the capacity to retransmit the > > > remaining 60 msgs... > > They are lost although we have ASP12 for redundancy purposes. > > > > Considering the case of Multi Homing also... > > even if ASP11 is multi homed and loses one path with a similar > > situation, there is still no chance of retransmitting the msgs as M3UA > > > does not define any such method for retrieval .... > > > > Regards, > > Satya Prasad > > > > > > > > Tolga Asveren wrote: > > > > Satya, > > > > In M3UA network redundancy is provided by SCTP multihoming and host > > redundancy by using multiple ASPs for an AS. > > > > For the configuration you are mentioning, if the ASP host is down, > > there is no message retrieval possible in SS7 as well for the similar > > case. If the SCTP association is lost to an ASP, this shouldn't happen > > > due to network problems (this property be guaranteed with SCTP > > multihoming and proper IP network configuration) and should indicate a > host failure. > > > > Thanks, > > Tolga > > > > > > -----Original Message----- > > From: Satya Prasad Nemana > > [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] > > Sent: Thursday, September 21, 2006 5:05 AM > > To: rfc-editor@rfc-editor.org > > Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org > > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message > > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > > > > > A general comment on ASP failover cases, M3UA does not have any method > > > of doing retrieval /retranamission Although SCTP does have the > > capability through multi homing, the ULP should have the request in > > place to do the retrieval/retransmission In the case of a single AS > > having only a single ASP configured, there is no chance of retrieval > > (but this is the most rare configuration as networks are configured > > not to go down with a single point of failure) In case the AS is > > configured with two ASPs and each having a different SCTP assoc with a > > > single path in each of the assoc.. > > there is no chance of message retrieval... as per the current rfc. > > > > No idea if this was not felt important in a telecom network!! > > > > rfc-editor@rfc-editor.org wrote: > > > > > > A new Request for Comments is now available in online RFC libraries. > > > > > > RFC 4666 > > > > Title: Signaling System 7 (SS7) Message > > Transfer Part 3 (MTP3) - User > > Adaptation Layer (M3UA) > > Author: K. Morneault, Ed., > > J. Pastor-Balbas, Ed. > > Status: Standards Track > > Date: September 2006 > > Mailbox: kmorneau@cisco.com, > > j.javier.pastor@ericsson.com > > Pages: 124 > > Characters: 292991 > > Obsoletes: RFC3332 > > See-Also: > > > > I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt > > > > URL: http://www.rfc-editor.org/rfc/rfc4666.txt > > > > This memo defines a protocol for supporting the transport of any SS7 > > MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the > > services of the Stream Control Transmission Protocol. Also, provision > > > is made for protocol elements that enable a seamless operation of the > > MTP3-User peers in the SS7 and IP domains. This protocol would be > > used between a Signalling Gateway (SG) and a Media Gateway Controller > > (MGC) or IP-resident Database, or between two IP-based applications. > > It is assumed that the SG receives SS7 signalling over a standard SS7 > > interface using the SS7 Message Transfer Part (MTP) to provide > > transport. This document obsoletes RFC 3332. [STANDARDS TRACK] > > > > This document is a product of the Signaling Transport Working Group of > > > the IETF. > > > > This is now a Proposed Standard Protocol. > > > > STANDARDS TRACK: This document specifies an Internet standards track > > protocol for the Internet community,and requests discussion and > > suggestions for improvements.Please refer to the current edition of > > the Internet Official Protocol Standards (STD 1) for the > > standardization state and status of this protocol. Distribution of > > this memo is unlimited. > > > > This announcement is sent to the IETF list and the RFC-DIST list. > > Requests to be added to or deleted from the IETF distribution list > > should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or > > deleted from the RFC-DIST distribution list should be sent to > > RFC-DIST-REQUEST@RFC-EDITOR.ORG. > > > > Details on obtaining RFCs via FTP or EMAIL may be obtained by sending > > an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body > > > > help: ways_to_get_rfcs. For example: > > > > To: rfc-info@RFC-EDITOR.ORG > > Subject: getting rfcs > > > > help: ways_to_get_rfcs > > > > Requests for special distribution should be addressed to either the > > author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. > > Unless specifically noted otherwise on the RFC itself, all RFCs are > > for unlimited distribution. > > > > Submissions for Requests for Comments should be sent to > > RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to > > RFC Authors, for further information. > > > > > > Joyce K. Reynolds and Sandy Ginoza > > USC/Information Sciences Institute > > > > ... > > > > > > > > _______________________________________________ > > Sigtran mailing list > > Sigtran@ietf.org > > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > > > > > > > _______________________________________________ > > Sigtran mailing list > > Sigtran@ietf.org > > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > > > _______________________________________________ > > Sigtran mailing list > > Sigtran@ietf.org > > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > > > > > > > _______________________________________________ > > Sigtran mailing list > > Sigtran@ietf.org > > https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 11:13:35 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQQEo-0006Fu-NP; Thu, 21 Sep 2006 11:13:18 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQQEn-0006Fd-RE for sigtran@ietf.org; Thu, 21 Sep 2006 11:13:17 -0400 Received: from bw.ulticom.com ([208.255.120.38]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQQEj-0000WN-H2 for sigtran@ietf.org; Thu, 21 Sep 2006 11:13:17 -0400 Received: from colby.ulticom.com (colby.ulticom.com [192.73.206.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bw.ulticom.com (BorderWare MXtreme Mail Firewall) with ESMTP id 0278793E71 for ; Thu, 21 Sep 2006 11:13:13 -0400 (EDT) Received: from pcasveren (pc-asveren.ulticom.com [172.25.33.55]) by colby.ulticom.com (8.13.4/8.12.10) with SMTP id k8LFDANi020604 for ; Thu, 21 Sep 2006 11:13:10 -0400 (EDT) From: "Tolga Asveren" To: Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7) MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 11:11:40 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <20060921065522.A29648@openss7.org> Importance: Normal Received-SPF: none X-Spam-Score: 0.0 (/) X-Scan-Signature: 5a9a1bd6c2d06a21d748b7d0070ddcb8 X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Brian, For unsent messages I agree with you, but I think this doesn't require a change on M3UA itself from on-the wire protocol point of view. I didn't check the SCTP socket API document for long time, hopefully they have a mechanism for that (not that otherwise would prevent some implementor to provide that type of functionality in their implementation, but considering that popular OS implementations follow it). BTW, I also agree that time controlled switchover between associations is a good idea to decrease probability if missequencing, but again I think it is a local procedure AFAICS. Thanks, Tolga > -----Original Message----- > From: Brian F. G. Bidulock [mailto:bidulock@openss7.org] > Sent: Thursday, September 21, 2006 8:55 AM > To: Tolga Asveren > Cc: sigtran@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) > MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga, > > Tolga Asveren wrote: > (Thu, 21 Sep 2006 08:31:44) > > > > For the configuration you are mentioning, if the ASP host is > down, there is > > no message retrieval possible in SS7 as well for the similar case. > > When a host (SP) fails in SS7, other SPs are still able to > retrieve messages > from their buffers and send them via alternate SPs. > > M3UA could too, particularly in the case where an SG fails and there > are multiple SG as STP. > > Again, see: > > http://www.ietf.org/internet-drafts/draft-bidulock-sigtran-corid-04.txt > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 12:56:04 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQRpc-0003xD-06; Thu, 21 Sep 2006 12:55:24 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQRpa-0003wc-UG for sigtran@ietf.org; Thu, 21 Sep 2006 12:55:22 -0400 Received: from stsc1260-eth-s1-s1p1-vip.va.neustar.com ([156.154.16.129] helo=chiedprmail1.ietf.org) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQQav-0004d8-Kz for sigtran@ietf.org; Thu, 21 Sep 2006 11:36:09 -0400 Received: from us-wkf-fwmain.comverse.com ([63.64.185.250] helo=us-wkf-interscan1.comverse.com) by chiedprmail1.ietf.org with esmtp (Exim 4.43) id 1GQQMk-0004ZY-JQ for sigtran@ietf.org; Thu, 21 Sep 2006 11:21:34 -0400 Received: from us-nj-mail1.comverse.com (localhost.localdomain [127.0.0.1]) by us-wkf-interscan1.comverse.com (8.13.1/8.13.1) with ESMTP id k8LFLKaH026295; Thu, 21 Sep 2006 11:21:27 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 11:21:20 -0400 Message-ID: <849535E338E99741B7F7413F73253EDB04C5DDD6@us-nj-mail1.comverse.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart3 (MTP3) - User Adaptation Layer (M3UA) thread-index: AcbdkC+6eZQpNOzXQOmaqM9igfJ3xgAAEUnA From: "Haresign Lincoln" To: "Tolga Asveren" , X-Spam-Score: -2.6 (--) X-Scan-Signature: 4ec3642ae9025e273a4a263d640f3300 Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga, 1. Because somebody decide to implement a switch in a certain way does not mean they violate protocols. You might say that putting SCTP on a NIC is not a good idea. I say that we have no control over how people implement things.=20 2. Nowhere does SCTP guarantee 0% message loss. SS7 states the same general principles (e.g., no missequencing, close to no message loss). And they way they do this is through redundancy on top of redundancy. A retrieval mechanism on top of the capabilities that SCTP offers would get us closer to 0% message loss. Why are you opposed to an optional mechanism that improves redundancy? If you don't want to implement it....don't. 3. If you implement SCTP on a NIC, you can not have it span multiple NICs. This is an implementation choice. It offloads the host from running SCTP. There are arguments for an against it. 4. A retrival type of mechanism would reduce message loss upon failure of an association when that failure is not related to host failure and you have other routes to that SGP/ASP. There is no argument agasint this basic fact. =20 Look, I think you can always say "people should engineer their networks properly". And of course I won't argue against that. But during the 12 months that the customer is tweaking their network and adding load and adding new switches, etc, etc...should we accept message loss? Regards, -----Original Message----- From: Tolga Asveren [mailto:asveren@ulticom.com]=20 Sent: Thursday, September 21, 2006 11:06 AM To: sigtran@ietf.org Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message TransferPart3 (MTP3) - User Adaptation Layer (M3UA) Lincoln, > -----Original Message----- > From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] > Sent: Thursday, September 21, 2006 10:40 AM > To: Tolga Asveren > Cc: sigtran@ietf.org > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message=20 > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga - > > 1) We have no control over what a customer or other vendor decides to=20 > do. [TOLGA]Then why do we have protocols? If a node decides to follow some protocol, and if it deliberatly does not make use of some redundancy features provided in the protocol, I think this is really their problem. > > 2) I'm not sure how you define the "main principles of SIGTRAN=20 > protocols". [TOLGA]Based on the mechanisms already defined in the protocol and the rationale behind them. I really don't like much to use the argument "Because the RFC says so" (because at so many places the language used is open to interpretation), but here it goes, from RFC3332 1.3.1 It is recommended that M3UA use the services of the Stream Control Transmission Protocol (SCTP) [17] as the underlying reliable common signalling transport protocol. This is to take advantage of various SCTP features such as: - Explicit packet-oriented delivery (not stream-oriented), - Sequenced delivery of user messages within multiple streams, with an option for order-of-arrival delivery of individual user messages, - Optional multiplexing of user messages into SCTP datagrams, - Network-level fault tolerance through support of multi-homing at either or both ends of an association, - Resistance to flooding and masquerade attacks, and - Data segmentation to conform to discovered path MTU size. Basically the tool for network redundancy is identified as SCTP multihoming. > 3) I don't believe that this is equivalent to putting an entire=20 > linkset on one line card. I'm just talking about putting one=20 > multihomed association on one NIC card with SCTP running on that NIC. > I still have multiple NICs. [TOLGA]But those NICs are not used by your M3UA node. If we want to use them, the SCTP endpoint should span them as well. > > 4) This is happening in the real world and message loss is occurring. > I would be great if the SIGTRAN community worked together to find a=20 > real solution rather than hoping that people will always implement the > perfect solution in the perfect network. [TOLGA]We need to think, why this is happening in real world. Is it because the protocol misses something or is it because people do not implement/deploy the protocol properly? I think the real solution is that people make use of SCTP multihoming and engineer their IP networks properly (like they engineer the physical topology in SS7 as well). Let's assume for a while we define a new mechanism, would this help it people don't impelement it right (or don't implement it at all)? > > Regards, > Lincoln > > -----Original Message----- > From: Tolga Asveren [mailto:asveren@ulticom.com] > Sent: Thursday, September 21, 2006 9:58 AM > To: Haresign Lincoln > Cc: sigtran@ietf.org > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message=20 > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > Lincoln, > > The SCTP implementation you mentioned is of course possible, but=20 > considering the role of SCTP and its multihoming capability in=20 > SIGTRAN, I wouldn't use such a SCTP card for my deployment, because=20 > the rationale behind using SCTP for SIGTRAN is to provide network=20 > interface/network reliability. > > BTW, for the equivalent of this in SS7, what would happen if I use a=20 > single card with 16 links? Isn't it the same problem, if the card=20 > dies, I loose everything. > > The reason I am against the mechanism is because it is againt the main > principles of SIGTRAN protocols and I don't think there is a real=20 > problem (but this of course is just my personal opinion). To me, the=20 > correct aproach is to make people aware how M3UA addresses network=20 > interface/network/host redundancy and let them engineer their IP=20 > networks properly. > > Thanks, > Tolga > > > -----Original Message----- > > From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] > > Sent: Thursday, September 21, 2006 9:42 AM > > To: Tolga Asveren; Satya_Prasad.Nemana@alcatel.com > > Cc: sigtran@ietf.org > > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message=20 > > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > > > Tolga, > > > > It would be possible to implement SCTP in an embedded on a NIC card=20 > > with dual ports for supporting multihoming and the UA layers running > > on the host. If the NIC card failed (OR if a Tier 4 support=20 > > engineering accidently unplugged a few power cables disabled a=20 > > couple routers), we could loose some associations while still keeping others. > > > > Some type of "OPTIONAL" retrieval mechanism would go towards the 0%=20 > > message loss that SS7 is striving towards. I'm not sure why you=20 > > would > > > oppose such a mechanism if it is optional. > > > > Regards, > > Lincoln > > > > -----Original Message----- > > From: Tolga Asveren [mailto:asveren@ulticom.com] > > Sent: Thursday, September 21, 2006 9:33 AM > > To: Satya_Prasad.Nemana@alcatel.com > > Cc: sigtran@ietf.org > > Subject: RE: [Sigtran] RFC 4666 on Signaling System 7(SS7)Message=20 > > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > Satya, > > > > If SCTP association to ASP11 is lost, this implies that ASP11 host=20 > > is down, because network redundancy is provided with SCTP=20 > > multihoming and > > > proper IP network engineering. When ASP11 is down, there is no way=20 > > to retrieve anyhting. The possibility of loosing SCTP association=20 > > without > > > a host failure should be guranateed to be below some acceptable=20 > > threshold value, i.e. > > really really low. > > > > BTW, your assumption of SCTP not being able to failover between=20 > > paths with no message loss is not correct. SCTP does this without=20 > > message loss and missequencing. > > > > Thanks, > > Tolga > > -----Original Message----- > > From: Satya Prasad Nemana > > [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] > > Sent: Thursday, September 21, 2006 9:27 AM > > To: Tolga Asveren > > Cc: sigtran@ietf.org > > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message=20 > > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > > > Tolga, > > > > Consider the situation > > > > SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via=20 > > SG- > > SG1 in loadshared... > > SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. > > When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. > > The current implementations do not have the capacity to retransmit=20 > > the > > > remaining 60 msgs... > > They are lost although we have ASP12 for redundancy purposes. > > > > Considering the case of Multi Homing also... > > even if ASP11 is multi homed and loses one path with a similar=20 > > situation, there is still no chance of retransmitting the msgs as=20 > > M3UA > > > does not define any such method for retrieval .... > > > > Regards, > > Satya Prasad > > > > > > > > Tolga Asveren wrote: > > > > Satya, > > > > In M3UA network redundancy is provided by SCTP multihoming and host=20 > > redundancy by using multiple ASPs for an AS. > > > > For the configuration you are mentioning, if the ASP host is down,=20 > > there is no message retrieval possible in SS7 as well for the=20 > > similar case. If the SCTP association is lost to an ASP, this=20 > > shouldn't happen > > > due to network problems (this property be guaranteed with SCTP=20 > > multihoming and proper IP network configuration) and should indicate > > a > host failure. > > > > Thanks, > > Tolga > > > > > > -----Original Message----- > > From: Satya Prasad Nemana > > [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] > > Sent: Thursday, September 21, 2006 5:05 AM > > To: rfc-editor@rfc-editor.org > > Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org;=20 > > ietf-announce@ietf.org > > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message=20 > > TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > > > > > > A general comment on ASP failover cases, M3UA does not have any=20 > > method > > > of doing retrieval /retranamission Although SCTP does have the=20 > > capability through multi homing, the ULP should have the request in=20 > > place to do the retrieval/retransmission In the case of a single AS=20 > > having only a single ASP configured, there is no chance of retrieval > > (but this is the most rare configuration as networks are configured=20 > > not to go down with a single point of failure) In case the AS is=20 > > configured with two ASPs and each having a different SCTP assoc with > > a > > > single path in each of the assoc.. > > there is no chance of message retrieval... as per the current rfc. > > > > No idea if this was not felt important in a telecom network!! > > > > rfc-editor@rfc-editor.org wrote: > > > > > > A new Request for Comments is now available in online RFC libraries. > > > > > > RFC 4666 > > > > Title: Signaling System 7 (SS7) Message > > Transfer Part 3 (MTP3) - User > > Adaptation Layer (M3UA) > > Author: K. Morneault, Ed., > > J. Pastor-Balbas, Ed. > > Status: Standards Track > > Date: September 2006 > > Mailbox: kmorneau@cisco.com, > > j.javier.pastor@ericsson.com > > Pages: 124 > > Characters: 292991 > > Obsoletes: RFC3332 > > See-Also: > > > > I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt > > > > URL: http://www.rfc-editor.org/rfc/rfc4666.txt > > > > This memo defines a protocol for supporting the transport of any SS7 > > MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using=20 > > the services of the Stream Control Transmission Protocol. Also,=20 > > provision > > > is made for protocol elements that enable a seamless operation of=20 > > the MTP3-User peers in the SS7 and IP domains. This protocol would=20 > > be used between a Signalling Gateway (SG) and a Media Gateway=20 > > Controller > > (MGC) or IP-resident Database, or between two IP-based applications. > > It is assumed that the SG receives SS7 signalling over a standard=20 > > SS7 interface using the SS7 Message Transfer Part (MTP) to provide=20 > > transport. This document obsoletes RFC 3332. [STANDARDS TRACK] > > > > This document is a product of the Signaling Transport Working Group=20 > > of > > > the IETF. > > > > This is now a Proposed Standard Protocol. > > > > STANDARDS TRACK: This document specifies an Internet standards track > > protocol for the Internet community,and requests discussion and=20 > > suggestions for improvements.Please refer to the current edition of=20 > > the Internet Official Protocol Standards (STD 1) for the=20 > > standardization state and status of this protocol. Distribution of=20 > > this memo is unlimited. > > > > This announcement is sent to the IETF list and the RFC-DIST list. > > Requests to be added to or deleted from the IETF distribution list=20 > > should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or > > deleted from the RFC-DIST distribution list should be sent to=20 > > RFC-DIST-REQUEST@RFC-EDITOR.ORG. > > > > Details on obtaining RFCs via FTP or EMAIL may be obtained by=20 > > sending an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message > > body > > > > help: ways_to_get_rfcs. For example: > > > > To: rfc-info@RFC-EDITOR.ORG > > Subject: getting rfcs > > > > help: ways_to_get_rfcs > > > > Requests for special distribution should be addressed to either the=20 > > author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. > > Unless specifically noted otherwise on the RFC itself, all RFCs are=20 > > for unlimited distribution. > > > > Submissions for Requests for Comments should be sent to=20 > > RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to > > RFC Authors, for further information. > > > > > > Joyce K. Reynolds and Sandy Ginoza > > USC/Information Sciences Institute > > > > ... > > > > > > > > _______________________________________________ > > Sigtran mailing list > > Sigtran@ietf.org > > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > > > > > > > _______________________________________________ > > Sigtran mailing list > > Sigtran@ietf.org > > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > > > _______________________________________________ > > Sigtran mailing list > > Sigtran@ietf.org > > https://www1.ietf.org/mailman/listinfo/sigtran > > > > > > > > > > > > _______________________________________________ > > Sigtran mailing list > > Sigtran@ietf.org > > https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 13:36:05 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQSSm-0004SK-52; Thu, 21 Sep 2006 13:35:52 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQSSl-0004SE-FQ for sigtran@ietf.org; Thu, 21 Sep 2006 13:35:51 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQSSh-0003x6-1I for sigtran@ietf.org; Thu, 21 Sep 2006 13:35:51 -0400 Received: from ns.pigworks.openss7.net (IDENT:WwVcb3d2sGmf7tFHGo4QITTwyGRNlyy1@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LHZkD29534; Thu, 21 Sep 2006 11:35:46 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LHZjL06856; Thu, 21 Sep 2006 11:35:45 -0600 Date: Thu, 21 Sep 2006 11:35:45 -0600 From: "Brian F. G. Bidulock" To: Tolga Asveren Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921113545.A6721@openss7.org> Mail-Followup-To: Tolga Asveren , sigtran@ietf.org References: <20060921065522.A29648@openss7.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from asveren@ulticom.com on Thu, Sep 21, 2006 at 11:11:40AM -0400 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 856eb5f76e7a34990d1d457d8e8e5b7f Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga, Tolga Asveren wrote: (Thu, 21 Sep 2006 11:11:40) > Brian, > > For unsent messages I agree with you, but I think this doesn't require a If the node has another communications path to the node ajacent to the failed association, buffer updating can be performed just as in SS7, and zero messages will be lost. It can be done without waiting and unnecessarily delaying messages in queue. Read the draft. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 13:48:29 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQSeF-0002MF-N3; Thu, 21 Sep 2006 13:47:43 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQSeE-0002MA-TW for sigtran@ietf.org; Thu, 21 Sep 2006 13:47:42 -0400 Received: from bw.ulticom.com ([208.255.120.38]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQSdr-0005dB-Se for sigtran@ietf.org; Thu, 21 Sep 2006 13:47:42 -0400 Received: from colby.ulticom.com (colby.ulticom.com [192.73.206.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by bw.ulticom.com (BorderWare MXtreme Mail Firewall) with ESMTP id 1D69FC1CD0 for ; Thu, 21 Sep 2006 13:47:07 -0400 (EDT) Received: from pcasveren (pc-asveren.ulticom.com [172.25.33.55]) by colby.ulticom.com (8.13.4/8.12.10) with SMTP id k8LHl5xk005044 for ; Thu, 21 Sep 2006 13:47:06 -0400 (EDT) From: "Tolga Asveren" To: Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7) MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Thu, 21 Sep 2006 13:45:34 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 In-Reply-To: <20060921113545.A6721@openss7.org> Importance: Normal Received-SPF: none X-Spam-Score: 0.0 (/) X-Scan-Signature: 7aafa0432175920a4b3e118e16c5cb64 X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Brian, The method explained in the draft is not something present in SS7 specifications. We are talking here of two different things: a)What to do about unsent messages. b)How to get some information about the last received message by a failed peer. a) is a local procedure. For b), if the host is not down, MTP3 changeover procedure is used for SS7. For SIGTRAN, SCTP handles failover between the paths. For b), if the host is down, there is no protocol support(not in SS7 and not in SIGTRAN). Any mechanism, which can do this (or something similar) locally is an implementation decision. For example, there is nothing preventing people to implement a distributed SCTP, which spans multiple hosts. Is this a good solution IMO not, is it allowed by the protocol I guess so. Thanks, Tolga > -----Original Message----- > From: Brian F. G. Bidulock [mailto:bidulock@openss7.org] > Sent: Thursday, September 21, 2006 1:36 PM > To: Tolga Asveren > Cc: sigtran@ietf.org > Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) > MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > Tolga, > > Tolga Asveren wrote: (Thu, 21 Sep > 2006 11:11:40) > > Brian, > > > > For unsent messages I agree with you, but I think this doesn't require a > > If the node has another communications path to the node ajacent > to the failed > association, buffer updating can be performed just as in SS7, and zero > messages will be lost. It can be done without waiting and unnecessarily > delaying messages in queue. Read the draft. > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 17:05:51 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQVjG-0008GT-SL; Thu, 21 Sep 2006 17:05:06 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQVjF-0008GO-Jp for sigtran@ietf.org; Thu, 21 Sep 2006 17:05:05 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQVjE-0000AH-6Z for sigtran@ietf.org; Thu, 21 Sep 2006 17:05:05 -0400 Received: from ns.pigworks.openss7.net (IDENT:8/IqCLXC3dCUL4u/U0jjKCRFPYz1AK00@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8LL51D01761; Thu, 21 Sep 2006 15:05:01 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8LL4xb10348; Thu, 21 Sep 2006 15:04:59 -0600 Date: Thu, 21 Sep 2006 15:04:59 -0600 From: "Brian F. G. Bidulock" To: Tolga Asveren Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Message-ID: <20060921150459.A9669@openss7.org> Mail-Followup-To: Tolga Asveren , sigtran@ietf.org References: <20060921113545.A6721@openss7.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from asveren@ulticom.com on Thu, Sep 21, 2006 at 01:45:34PM -0400 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 8abaac9e10c826e8252866cbe6766464 Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Tolga, It was always the intention of the SIGTRAN protocols that they support multiple associations between ASP and SGP. See, for example, Figure 5 in RFC 3332. That figure shows a near full mesh of SCTP associations between SGP and ASP. The purpose of multiple hosts in an SG or MGC is reliability. If you place one association between them, you have a single point of failure. Carrier grade systems are designed for no single point of failure. To ensure no SPOF, you need multiple SGP in an SG, multiple SG, and multiple ASPs in an MGC. M3UA cannot handle sequenced changeover or changeback between associations without message loss (or worse, duplication) using local procedures. A protocol mechanism such as corid is necessary. SS7 does this (all day long). CORID is precisely the SS7 procedures applied to SIGTRAN. If there is some point(s) in the draft that you disagree with perhaps you could quote them and make some suggestions for improvement. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Thu Sep 21 23:44:41 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQbxR-0003NL-7A; Thu, 21 Sep 2006 23:44:09 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQbxP-0003NB-4s for sigtran@ietf.org; Thu, 21 Sep 2006 23:44:07 -0400 Received: from hostree9f.alcatel.com ([143.209.238.159] helo=audl952.usa.alcatel.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQbxL-0003T8-6l for sigtran@ietf.org; Thu, 21 Sep 2006 23:44:07 -0400 Received: from ssd.usa.alcatel.com (spdmail-qfe1.ssd.usa.alcatel.com [172.22.222.60]) by audl952.usa.alcatel.com (ALCANET) with ESMTP id k8M3i1KH026527; Thu, 21 Sep 2006 22:44:02 -0500 Received: from axes-mach01.usa.alcatel.com (axes-mach01.usa.alcatel.com [10.255.0.20]) by ssd.usa.alcatel.com (8.12.8/8.12.8) with ESMTP id k8M3hfgq016453; Thu, 21 Sep 2006 22:43:42 -0500 (CDT) Received: from [10.255.1.77] (ax-sp-pc27.usa.alcatel.com [10.255.1.77]) by axes-mach01.usa.alcatel.com (8.12.10+Sun/8.12.2) with ESMTP id k8M3n7j0002756; Fri, 22 Sep 2006 09:19:08 +0530 (IST) Message-ID: <45135C4D.9060609@axes-mach01.usa.alcatel.com> Date: Fri, 22 Sep 2006 09:15:17 +0530 From: Satya Prasad Nemana Organization: Tech Mahindra R&D Services, 9/7 Hosur Road, Bangalore-560029 Ph :25539232/33 Extn 1243 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Tolga Asveren Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) References: In-Reply-To: X-Scanned-By: MIMEDefang 2.51 on 143.209.238.34 X-Spam-Score: 0.6 (/) X-Scan-Signature: 90fbdaf3c139ce803b358d56775b59ed Cc: sigtran@ietf.org X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0165053041==" Errors-To: sigtran-bounces@ietf.org This is a multi-part message in MIME format. --===============0165053041== Content-Type: multipart/alternative; boundary="------------070905050706080203020901" This is a multi-part message in MIME format. --------------070905050706080203020901 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Tolga, In my config ASP11 has a single path, so does that ASP12.... Multihoming is not involved in the two ASPs for various reasons... Regarding "BTW, your assumption of SCTP not being able to failover between paths with no message loss is not correct. SCTP does this without message loss and missequencing." SCTP does not exist as a single entity and there is always an ULP involved.. If the ULP does not request for retrieval, SCTP will not do the retrieval.. SCTP has the capability not to lose messages on path failures...but all depends on the ULP..... M2PA does that as there is MTP3 involved which does the retrieval/retrans... M3UA does not do that.. Regards, Satya Prasad Tolga Asveren wrote: >Satya, > >If SCTP association to ASP11 is lost, this implies that ASP11 host is down, >because network redundancy is provided with SCTP multihoming and proper IP >network engineering. When ASP11 is down, there is no way to retrieve >anyhting. The possibility of loosing SCTP association without a host failure >should be guranateed to be below some acceptable threshold value, i.e. >really really low. > >BTW, your assumption of SCTP not being able to failover between paths with >no message loss is not correct. SCTP does this without message loss and >missequencing. > > Thanks, > Tolga >-----Original Message----- >From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] >Sent: Thursday, September 21, 2006 9:27 AM >To: Tolga Asveren >Cc: sigtran@ietf.org >Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message >TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > >Tolga, > >Consider the situation > >SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- SG1 >in loadshared... >SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. >When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. >The current implementations do not have the capacity to retransmit the >remaining 60 msgs... >They are lost although we have ASP12 for redundancy purposes. > >Considering the case of Multi Homing also... >even if ASP11 is multi homed and loses one path with a similar situation, >there is still no chance of >retransmitting the msgs as M3UA does not define any such method for >retrieval .... > >Regards, >Satya Prasad > > > >Tolga Asveren wrote: > >Satya, > >In M3UA network redundancy is provided by SCTP multihoming and host >redundancy by using multiple ASPs for an AS. > >For the configuration you are mentioning, if the ASP host is down, there is >no message retrieval possible in SS7 as well for the similar case. If the >SCTP association is lost to an ASP, this shouldn't happen due to network >problems (this property be guaranteed with SCTP multihoming and proper IP >network configuration) and should indicate a host failure. > > Thanks, > Tolga > > >-----Original Message----- >From: Satya Prasad Nemana >[mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] >Sent: Thursday, September 21, 2006 5:05 AM >To: rfc-editor@rfc-editor.org >Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org >Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message >TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) > > > >A general comment on ASP failover cases, >M3UA does not have any method of doing retrieval /retranamission >Although SCTP does have the capability through multi homing, >the ULP should have the request in place to do the >retrieval/retransmission >In the case of a single AS having only a single ASP configured, there is >no chance of retrieval (but this is the most rare configuration >as networks >are configured not to go down with a single point of failure) >In case the AS is configured with two ASPs and each having a different >SCTP assoc with a single path in each of the assoc.. >there is no chance of message retrieval... as per the current rfc. > >No idea if this was not felt important in a telecom network!! > >rfc-editor@rfc-editor.org wrote: > > >A new Request for Comments is now available in online RFC libraries. > > > RFC 4666 > > Title: Signaling System 7 (SS7) Message > Transfer Part 3 (MTP3) - User > Adaptation Layer (M3UA) > Author: K. Morneault, Ed., > J. Pastor-Balbas, Ed. > Status: Standards Track > Date: September 2006 > Mailbox: kmorneau@cisco.com, > j.javier.pastor@ericsson.com > Pages: 124 > Characters: 292991 > Obsoletes: RFC3332 > See-Also: > > I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt > > URL: http://www.rfc-editor.org/rfc/rfc4666.txt > >This memo defines a protocol for supporting the transport of any SS7 >MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the >services of the Stream Control Transmission Protocol. Also, >provision is made for protocol elements that enable a seamless >operation of the MTP3-User peers in the SS7 and IP domains. This >protocol would be used between a Signalling Gateway (SG) and a Media >Gateway Controller (MGC) or IP-resident Database, or between two >IP-based applications. It is assumed that the SG receives SS7 >signalling over a standard SS7 interface using the SS7 Message >Transfer Part (MTP) to provide transport. This document obsoletes >RFC 3332. [STANDARDS TRACK] > >This document is a product of the Signaling Transport >Working Group of the IETF. > >This is now a Proposed Standard Protocol. > >STANDARDS TRACK: This document specifies an Internet standards track >protocol for the Internet community,and requests discussion and >suggestions for improvements.Please refer to the current edition of the >Internet Official Protocol Standards (STD 1) for the standardization >state and status of this protocol. Distribution of this memo is >unlimited. > >This announcement is sent to the IETF list and the RFC-DIST list. >Requests to be added to or deleted from the IETF distribution list >should be sent to IETF-REQUEST@IETF.ORG. Requests to be >added to or deleted from the RFC-DIST distribution list should >be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG. > >Details on obtaining RFCs via FTP or EMAIL may be obtained by sending >an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body > >help: ways_to_get_rfcs. For example: > > To: rfc-info@RFC-EDITOR.ORG > Subject: getting rfcs > > help: ways_to_get_rfcs > >Requests for special distribution should be addressed to either the >author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless >specifically noted otherwise on the RFC itself, all RFCs are for >unlimited distribution. > >Submissions for Requests for Comments should be sent to >RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC >Authors, for further information. > > >Joyce K. Reynolds and Sandy Ginoza >USC/Information Sciences Institute > >... > > > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > > > > > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > > > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > > > > > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > > > > --------------070905050706080203020901 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Tolga,

In my config ASP11 has a single path, so does that ASP12....
Multihoming is not involved in the two ASPs for various reasons...

Regarding
"BTW, your assumption of SCTP not being able to failover between paths with
no message loss is not correct. SCTP does this without message loss and
missequencing."

SCTP does not exist as a single entity and there is always an ULP involved..
If the ULP does not request for retrieval, SCTP will not do the retrieval..
SCTP has the capability not to lose messages on path failures...but all depends on the ULP.....
M2PA does that as there is MTP3 involved which does the retrieval/retrans...
M3UA does not do that..

Regards,
Satya Prasad





Tolga Asveren wrote:
Satya,

If SCTP association to ASP11 is lost, this implies that ASP11 host is down,
because network redundancy is provided with SCTP multihoming and proper IP
network engineering. When ASP11 is down, there is no way to retrieve
anyhting. The possibility of loosing SCTP association without a host failure
should be guranateed to be below some acceptable threshold value, i.e.
really really low.

BTW, your assumption of SCTP not being able to failover between paths with
no message loss is not correct. SCTP does this without message loss and
missequencing.

     Thanks,
     Tolga
-----Original Message-----
From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com]
Sent: Thursday, September 21, 2006 9:27 AM
To: Tolga Asveren
Cc: sigtran@ietf.org
Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message
TransferPart 3 (MTP3) - User Adaptation Layer (M3UA)


Tolga,

Consider the situation

SP1 is routing  ISUP messages to  AS1 (which has ASP11, ASP12) via SG- SG1
in loadshared...
SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11..
When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs..
The current implementations do not have the capacity to retransmit the
remaining 60 msgs...
They are lost although we have ASP12 for redundancy purposes.

Considering the case of Multi Homing also...
even if ASP11 is multi homed and loses one path with a similar situation,
there is still no chance of
retransmitting the msgs as M3UA does not define any such method for
retrieval ....

Regards,
Satya Prasad



Tolga Asveren wrote:

Satya,

In M3UA network redundancy is provided by SCTP multihoming and host
redundancy by using multiple ASPs for an AS.

For the configuration you are mentioning, if the ASP host is down, there is
no message retrieval possible in SS7 as well for the similar case. If the
SCTP association is lost to an ASP, this shouldn't happen due to network
problems (this property be guaranteed with SCTP multihoming and proper IP
network configuration) and should indicate a host failure.

     Thanks,
     Tolga


-----Original Message-----
From: Satya Prasad Nemana
[mailto:SatyaPrasad@axes-mach01.usa.alcatel.com]
Sent: Thursday, September 21, 2006 5:05 AM
To: rfc-editor@rfc-editor.org
Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org
Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message
TransferPart 3 (MTP3) - User Adaptation Layer (M3UA)



A general comment on ASP failover cases,
M3UA does not have any method of doing retrieval /retranamission
Although SCTP does have the capability through multi homing,
the ULP should have the request in place to do the
retrieval/retransmission
In the case of a single AS having only a single ASP configured, there is
no chance of retrieval (but this is the most rare configuration
as networks
are configured  not to go down with a single point of failure)
In case the AS is configured with two ASPs and each having a different
SCTP assoc with a single path in  each of the assoc..
there is no chance of message retrieval... as per the current rfc.

No idea if this was not felt important in a telecom network!!

rfc-editor@rfc-editor.org wrote:


A new Request for Comments is now available in online RFC libraries.


       RFC 4666

       Title:      Signaling System 7 (SS7) Message
                   Transfer Part 3 (MTP3) - User
                   Adaptation Layer (M3UA)
       Author:     K. Morneault, Ed.,
                   J. Pastor-Balbas, Ed.
       Status:     Standards Track
       Date:       September 2006
       Mailbox:    kmorneau@cisco.com,
                   j.javier.pastor@ericsson.com
       Pages:      124
       Characters: 292991
       Obsoletes:  RFC3332
       See-Also:

       I-D Tag:    draft-ietf-sigtran-rfc3332bis-06.txt

       URL:        http://www.rfc-editor.org/rfc/rfc4666.txt

This memo defines a protocol for supporting the transport of any SS7
MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the
services of the Stream Control Transmission Protocol.  Also,
provision is made for protocol elements that enable a seamless
operation of the MTP3-User peers in the SS7 and IP domains.  This
protocol would be used between a Signalling Gateway (SG) and a Media
Gateway Controller (MGC) or IP-resident Database, or between two
IP-based applications.  It is assumed that the SG receives SS7
signalling over a standard SS7 interface using the SS7 Message
Transfer Part (MTP) to provide transport.  This document obsoletes
RFC 3332.  [STANDARDS TRACK]

This document is a product of the Signaling Transport
Working Group of the IETF.

This is now a Proposed Standard Protocol.

STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and
suggestions for improvements.Please refer to the current edition of the
Internet Official Protocol Standards (STD 1) for the standardization
state and status of this protocol.  Distribution of this memo is
unlimited.

This announcement is sent to the IETF list and the RFC-DIST list.
Requests to be added to or deleted from the IETF distribution list
should be sent to IETF-REQUEST@IETF.ORG.  Requests to be
added to or deleted from the RFC-DIST distribution list should
be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG.

Details on obtaining RFCs via FTP or EMAIL may be obtained by sending
an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body

help: ways_to_get_rfcs. For example:

       To: rfc-info@RFC-EDITOR.ORG
       Subject: getting rfcs

       help: ways_to_get_rfcs

Requests for special distribution should be addressed to either the
author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG.  Unless
specifically noted otherwise on the RFC itself, all RFCs are for
unlimited distribution.

Submissions for Requests for Comments should be sent to
RFC-EDITOR@RFC-EDITOR.ORG.  Please consult RFC 2223, Instructions to RFC
Authors, for further information.


Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

...



_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran





_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran



_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran





_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran


  
--------------070905050706080203020901-- --===============0165053041== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0165053041==-- From sigtran-bounces@ietf.org Fri Sep 22 08:18:29 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQjyr-0003ia-SG; Fri, 22 Sep 2006 08:18:09 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQjyq-0003iM-92 for sigtran@ietf.org; Fri, 22 Sep 2006 08:18:08 -0400 Received: from nz-out-0102.google.com ([64.233.162.198]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQjyn-0002mL-2e for sigtran@ietf.org; Fri, 22 Sep 2006 08:18:08 -0400 Received: by nz-out-0102.google.com with SMTP id q3so286602nzb for ; Fri, 22 Sep 2006 05:18:04 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=googlemail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=EUb5xU/9qkGF/HCz1Y46IYSr9SXALVAgJ51zTL/l9lEKBW5gYMBl3WaNv5eInxTptPKMaN5/ZFJFpzjd92JYkft5IHS72bPpfE+mcmvH26FURVbzhoGRvbQaUNKAU9la6+8YM2sY67Z5TDH+9gBBEBlVFppgnQe42mt3GJnkDQo= Received: by 10.65.23.15 with SMTP id a15mr332873qbj; Fri, 22 Sep 2006 05:18:04 -0700 (PDT) Received: by 10.65.248.8 with HTTP; Fri, 22 Sep 2006 05:18:04 -0700 (PDT) Message-ID: <17b146d60609220518t67c2cdfcme935c2ff2f7fd8aa@mail.gmail.com> Date: Fri, 22 Sep 2006 14:18:04 +0200 From: "Ilie Glib" To: sigtran MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Spam-Score: 0.2 (/) X-Scan-Signature: d17f825e43c9aed4fd65b7edddddec89 Subject: [Sigtran] Mandatory/optional RC in ACTIVE/INACTIVE ACK X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hello Folks SUA RFC requires RC in ACTIVE ACK message, while the RC in ACTIVE is optional. Perhaps, this is OK, but the RC in INACTIVE ACK is optional. What is the reason for that difference. Thank you in advance -- Ilie _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 22 08:37:00 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQkGg-0003Ky-SL; Fri, 22 Sep 2006 08:36:34 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQkGf-0003Km-88 for sigtran@ietf.org; Fri, 22 Sep 2006 08:36:33 -0400 Received: from phl-28-b-170.phl.dsl.cerfnet.com ([63.242.157.170]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQkGc-0004jH-7R for sigtran@ietf.org; Fri, 22 Sep 2006 08:36:33 -0400 Received: from bn001320 (bn001320 [192.168.1.61]) by phl-28-b-170.phl.dsl.cerfnet.com (8.12.8/8.12.8) with SMTP id k8MCaNjd004548 for ; Fri, 22 Sep 2006 08:36:23 -0400 From: "Barry Nagelberg" To: Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart3 (MTP3) - User Adaptation Layer (M3UA) Date: Fri, 22 Sep 2006 08:38:54 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300 In-Reply-To: <45135C4D.9060609@axes-mach01.usa.alcatel.com> Importance: Normal X-Spam-Score: 1.5 (+) X-Scan-Signature: 187ae6c2eea74946c0ab707161f6256d X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Satya, Of course M3UA can retrieve unacked messages from the SCTP transmit queue and send them to the AS over another SCTP association. Why not? Our implementation does. Barry Nagelberg Adax, Inc. -----Original Message----- From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 11:45 PM To: Tolga Asveren Cc: sigtran@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart3 (MTP3) - User Adaptation Layer (M3UA) Tolga, In my config ASP11 has a single path, so does that ASP12.... Multihoming is not involved in the two ASPs for various reasons... Regarding "BTW, your assumption of SCTP not being able to failover between paths with no message loss is not correct. SCTP does this without message loss and missequencing." SCTP does not exist as a single entity and there is always an ULP involved.. If the ULP does not request for retrieval, SCTP will not do the retrieval.. SCTP has the capability not to lose messages on path failures...but all depends on the ULP..... M2PA does that as there is MTP3 involved which does the retrieval/retrans... M3UA does not do that.. Regards, Satya Prasad Tolga Asveren wrote: Satya, If SCTP association to ASP11 is lost, this implies that ASP11 host is down, because network redundancy is provided with SCTP multihoming and proper IP network engineering. When ASP11 is down, there is no way to retrieve anyhting. The possibility of loosing SCTP association without a host failure should be guranateed to be below some acceptable threshold value, i.e. really really low. BTW, your assumption of SCTP not being able to failover between paths with no message loss is not correct. SCTP does this without message loss and missequencing. Thanks, Tolga -----Original Message----- From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 9:27 AM To: Tolga Asveren Cc: sigtran@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Tolga, Consider the situation SP1 is routing ISUP messages to AS1 (which has ASP11, ASP12) via SG- SG1 in loadshared... SG1 has sent 1000 msgs to AS1 via SCTP assoc of ASP11.. When SCTP assoc of ASP11 fails and AS1 has acked via SACK 940 msgs.. The current implementations do not have the capacity to retransmit the remaining 60 msgs... They are lost although we have ASP12 for redundancy purposes. Considering the case of Multi Homing also... even if ASP11 is multi homed and loses one path with a similar situation, there is still no chance of retransmitting the msgs as M3UA does not define any such method for retrieval .... Regards, Satya Prasad Tolga Asveren wrote: Satya, In M3UA network redundancy is provided by SCTP multihoming and host redundancy by using multiple ASPs for an AS. For the configuration you are mentioning, if the ASP host is down, there is no message retrieval possible in SS7 as well for the similar case. If the SCTP association is lost to an ASP, this shouldn't happen due to network problems (this property be guaranteed with SCTP multihoming and proper IP network configuration) and should indicate a host failure. Thanks, Tolga -----Original Message----- From: Satya Prasad Nemana [mailto:SatyaPrasad@axes-mach01.usa.alcatel.com] Sent: Thursday, September 21, 2006 5:05 AM To: rfc-editor@rfc-editor.org Cc: sigtran@ietf.org; rfc-dist@rfc-editor.org; ietf-announce@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) Message TransferPart 3 (MTP3) - User Adaptation Layer (M3UA) A general comment on ASP failover cases, M3UA does not have any method of doing retrieval /retranamission Although SCTP does have the capability through multi homing, the ULP should have the request in place to do the retrieval/retransmission In the case of a single AS having only a single ASP configured, there is no chance of retrieval (but this is the most rare configuration as networks are configured not to go down with a single point of failure) In case the AS is configured with two ASPs and each having a different SCTP assoc with a single path in each of the assoc.. there is no chance of message retrieval... as per the current rfc. No idea if this was not felt important in a telecom network!! rfc-editor@rfc-editor.org wrote: A new Request for Comments is now available in online RFC libraries. RFC 4666 Title: Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA) Author: K. Morneault, Ed., J. Pastor-Balbas, Ed. Status: Standards Track Date: September 2006 Mailbox: kmorneau@cisco.com, j.javier.pastor@ericsson.com Pages: 124 Characters: 292991 Obsoletes: RFC3332 See-Also: I-D Tag: draft-ietf-sigtran-rfc3332bis-06.txt URL: http://www.rfc-editor.org/rfc/rfc4666.txt This memo defines a protocol for supporting the transport of any SS7 MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the services of the Stream Control Transmission Protocol. Also, provision is made for protocol elements that enable a seamless operation of the MTP3-User peers in the SS7 and IP domains. This protocol would be used between a Signalling Gateway (SG) and a Media Gateway Controller (MGC) or IP-resident Database, or between two IP-based applications. It is assumed that the SG receives SS7 signalling over a standard SS7 interface using the SS7 Message Transfer Part (MTP) to provide transport. This document obsoletes RFC 3332. [STANDARDS TRACK] This document is a product of the Signaling Transport Working Group of the IETF. This is now a Proposed Standard Protocol. STANDARDS TRACK: This document specifies an Internet standards track protocol for the Internet community,and requests discussion and suggestions for improvements.Please refer to the current edition of the Internet Official Protocol Standards (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF list and the RFC-DIST list. Requests to be added to or deleted from the IETF distribution list should be sent to IETF-REQUEST@IETF.ORG. Requests to be added to or deleted from the RFC-DIST distribution list should be sent to RFC-DIST-REQUEST@RFC-EDITOR.ORG. Details on obtaining RFCs via FTP or EMAIL may be obtained by sending an EMAIL message to rfc-info@RFC-EDITOR.ORG with the message body help: ways_to_get_rfcs. For example: To: rfc-info@RFC-EDITOR.ORG Subject: getting rfcs help: ways_to_get_rfcs Requests for special distribution should be addressed to either the author of the RFC in question, or to RFC-Manager@RFC-EDITOR.ORG. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. Submissions for Requests for Comments should be sent to RFC-EDITOR@RFC-EDITOR.ORG. Please consult RFC 2223, Instructions to RFC Authors, for further information. Joyce K. Reynolds and Sandy Ginoza USC/Information Sciences Institute ... _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 22 11:41:45 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQn9V-0003gk-5M; Fri, 22 Sep 2006 11:41:21 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQn9U-0003gQ-44 for sigtran@ietf.org; Fri, 22 Sep 2006 11:41:20 -0400 Received: from nz-out-0102.google.com ([64.233.162.196]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQn9R-0004Fr-RX for sigtran@ietf.org; Fri, 22 Sep 2006 11:41:20 -0400 Received: by nz-out-0102.google.com with SMTP id q3so335137nzb for ; Fri, 22 Sep 2006 08:41:17 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=googlemail.com; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=T8r8WBt3U91ggrTotAWczNHV1xrtMLrZ+WECCBkR/FJYxw0kQHviYIXMO8CAQY08eXkHc0uGORBHRSnDeOEcbIC/k8QUlbSwTdtOtB7a9xxahi84gj3DUSw5fUcy+Qi4fQDUXAZnKkN3aXtUsuDgDFcAn4Wgr3wIMY7Z5wDr3fM= Received: by 10.65.254.13 with SMTP id g13mr689074qbs; Fri, 22 Sep 2006 08:41:17 -0700 (PDT) Received: by 10.65.248.8 with HTTP; Fri, 22 Sep 2006 08:41:17 -0700 (PDT) Message-ID: <17b146d60609220841r2c614cf2n6900a6a88a0bfec0@mail.gmail.com> Date: Fri, 22 Sep 2006 17:41:17 +0200 From: "Ilie Glib" To: bidulock@openss7.org, sigtran@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7) MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) In-Reply-To: <20060921150459.A9669@openss7.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20060921113545.A6721@openss7.org> <20060921150459.A9669@openss7.org> X-Spam-Score: 0.0 (/) X-Scan-Signature: 3e15cc4fdc61d7bce84032741d11c8e5 Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hello Brian, Do you really think that it is normal when there are multiple SCTP associations between two processes, an SGP and an ASP? How many signalling processes would see each process in that scenario? By the way Figure 5 in RFC 3332 does not show that case. Regards -Ilie On 9/21/06, Brian F. G. Bidulock wrote: > Tolga, > > It was always the intention of the SIGTRAN protocols that > they support multiple associations between ASP and SGP. > See, for example, Figure 5 in RFC 3332. That figure shows > a near full mesh of SCTP associations between SGP and ASP. > > The purpose of multiple hosts in an SG or MGC is reliability. > If you place one association between them, you have a single > point of failure. Carrier grade systems are designed for > no single point of failure. To ensure no SPOF, you need > multiple SGP in an SG, multiple SG, and multiple ASPs in > an MGC. > > M3UA cannot handle sequenced changeover or changeback > between associations without message loss (or worse, > duplication) using local procedures. A protocol mechanism > such as corid is necessary. > > SS7 does this (all day long). CORID is precisely the SS7 > procedures applied to SIGTRAN. > > If there is some point(s) in the draft that you disagree > with perhaps you could quote them and make some suggestions > for improvement. > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > -- Ilie _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 22 11:48:24 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQnFz-0006b4-7z; Fri, 22 Sep 2006 11:48:03 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GQnFx-0006az-Pp for sigtran@ietf.org; Fri, 22 Sep 2006 11:48:01 -0400 Received: from us-wkf-fwmain.comverse.com ([63.64.185.250] helo=us-wkf-interscan1.comverse.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GQnFw-000505-GP for sigtran@ietf.org; Fri, 22 Sep 2006 11:48:01 -0400 Received: from us-nj-mail1.comverse.com (localhost.localdomain [127.0.0.1]) by us-wkf-interscan1.comverse.com (8.13.1/8.13.1) with ESMTP id k8MFljWr015353; Fri, 22 Sep 2006 11:47:46 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [Sigtran] RFC 4666 on Signaling System 7 (SS7)MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Date: Fri, 22 Sep 2006 11:47:44 -0400 Message-ID: <849535E338E99741B7F7413F73253EDB04C5E7CD@us-nj-mail1.comverse.com> In-Reply-To: <17b146d60609220841r2c614cf2n6900a6a88a0bfec0@mail.gmail.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] RFC 4666 on Signaling System 7 (SS7)MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) thread-index: AcbeXec9mYTr3bkyRU+G8p7waRaCMgAAHetw From: "Haresign Lincoln" To: "Ilie Glib" , , X-Spam-Score: 0.0 (/) X-Scan-Signature: 4b800b1eab964a31702fa68f1ff0e955 Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org We support this scenario and have deployed it in some networks for various reasons.=20 -----Original Message----- From: Ilie Glib [mailto:ilie.glib@googlemail.com]=20 Sent: Friday, September 22, 2006 11:41 AM To: bidulock@openss7.org; sigtran@ietf.org Subject: Re: [Sigtran] RFC 4666 on Signaling System 7 (SS7)MessageTransferPart 3 (MTP3) - User Adaptation Layer (M3UA) Hello Brian, Do you really think that it is normal when there are multiple SCTP associations between two processes, an SGP and an ASP? How many signalling processes would see each process in that scenario? By the way Figure 5 in RFC 3332 does not show that case. Regards -Ilie On 9/21/06, Brian F. G. Bidulock wrote: > Tolga, > > It was always the intention of the SIGTRAN protocols that they support > multiple associations between ASP and SGP. > See, for example, Figure 5 in RFC 3332. That figure shows a near full > mesh of SCTP associations between SGP and ASP. > > The purpose of multiple hosts in an SG or MGC is reliability. > If you place one association between them, you have a single point of=20 > failure. Carrier grade systems are designed for no single point of=20 > failure. To ensure no SPOF, you need multiple SGP in an SG, multiple=20 > SG, and multiple ASPs in an MGC. > > M3UA cannot handle sequenced changeover or changeback between=20 > associations without message loss (or worse, > duplication) using local procedures. A protocol mechanism such as=20 > corid is necessary. > > SS7 does this (all day long). CORID is precisely the SS7 procedures=20 > applied to SIGTRAN. > > If there is some point(s) in the draft that you disagree with perhaps=20 > you could quote them and make some suggestions for improvement. > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > -- Ilie _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Sat Sep 23 06:01:39 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GR4Jb-0004dM-Lt; Sat, 23 Sep 2006 06:00:55 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GR4Ja-0004dH-LB for sigtran@ietf.org; Sat, 23 Sep 2006 06:00:54 -0400 Received: from py-out-1112.google.com ([64.233.166.178]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GR4JZ-0006fu-AS for sigtran@ietf.org; Sat, 23 Sep 2006 06:00:54 -0400 Received: by py-out-1112.google.com with SMTP id s49so426383pyc for ; Sat, 23 Sep 2006 03:00:53 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=EY395XUc68O35ANtoirnbxJrQ3A1JpT97vnmA8z79oKnW7oRzUH9t8KgJOIVrvrl90rXPB1rVfATdY+GxyEnTBaoMPgrX6kbOGzvSA5QP18mcssrCAF9Mag3zCCb/Rhs3PFQqfECak9FQvCdl9noSuY0VdFTdSJLYcBRMv6cXtk= Received: by 10.35.125.16 with SMTP id c16mr3391424pyn; Sat, 23 Sep 2006 03:00:53 -0700 (PDT) Received: by 10.35.76.14 with HTTP; Sat, 23 Sep 2006 03:00:52 -0700 (PDT) Message-ID: Date: Sat, 23 Sep 2006 15:30:52 +0530 From: "Saurabh Jain" To: "Ilie Glib" Subject: Re: [Sigtran] Mandatory/optional RC in ACTIVE/INACTIVE ACK In-Reply-To: <17b146d60609220518t67c2cdfcme935c2ff2f7fd8aa@mail.gmail.com> MIME-Version: 1.0 References: <17b146d60609220518t67c2cdfcme935c2ff2f7fd8aa@mail.gmail.com> X-Spam-Score: 0.2 (/) X-Scan-Signature: f66b12316365a3fe519e75911daf28a8 Cc: sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0432346437==" Errors-To: sigtran-bounces@ietf.org --===============0432346437== Content-Type: multipart/alternative; boundary="----=_Part_1845_30771384.1159005652913" ------=_Part_1845_30771384.1159005652913 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Hello Ilie, I believe your point is valid. In ASP Active Ack Message, the Routing Key IE should have been Optional. In ASP Active and ASP Inactive, absence of RC, would imply that ASP Active is meant for all AS served by the ASP. Section 4.3.4.3 : * In the case where an ASP Active message does not contain a Routing Context parameter, * * the receiver must know, via configuration data, which Application Server(s) the ASP is a member. * Similarly in ASP Active Ack and ASP Inactive Ack, absence of RC should imply that Acknowledgement is meant for all AS served by ASP. (NOTE: Peer SUA always has the option o sending individual acknowledgements for each RC) Section 4.3.4.3 : * The Routing Context parameter "MUST" be included in the ASP Active Ack message(s) "if" the* * received ASP Active message contained any Routing Contexts. In ACTIVE and INACTIVE, RC is optional,* * would imply that ASP Active is meant for all AS served by the ASP.* Thus, in case ASP Active didn't contain RC, then MUST clause doesn't apply. Regards Saurabh Jain Flextronics Software Systems On 9/22/06, Ilie Glib wrote: > > Hello Folks > > SUA RFC requires RC in ACTIVE ACK message, while the RC in ACTIVE is > optional. Perhaps, this is OK, but the RC in INACTIVE ACK is optional. > > What is the reason for that difference. > > Thank you in advance > > -- > Ilie > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > ------=_Part_1845_30771384.1159005652913 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline

Hello

Ilie,
I believe your point is valid. In ASP Active Ack Message, the Routing Key IE should have been Optional.
 
In ASP Active and ASP Inactive, absence of RC, would imply that ASP Active is meant for all AS served by the ASP.
Section 4.3.4.3 :
        In the case where an ASP Active message does not contain a Routing Context parameter,
        the receiver must know, via configuration data, which Application Server(s) the ASP is a member.

Similarly in ASP Active Ack and ASP Inactive Ack, absence of RC should imply that Acknowledgement is meant for all AS served by ASP. (NOTE: Peer SUA always has the option o sending individual acknowledgements for each RC)

Section 4.3.4.3 :
        The Routing Context parameter "MUST" be included in the ASP Active Ack message(s) "if" the
        received ASP Active message contained any Routing Contexts. In ACTIVE and INACTIVE, RC is optional,
       would imply that ASP Active is meant for all AS served by the ASP.
 
Thus, in case ASP Active didn't contain RC, then MUST clause doesn't apply.
 
 
Regards
Saurabh Jain
Flextronics Software Systems


 
On 9/22/06, Ilie Glib <ilie.glib@googlemail.com> wrote:
Hello Folks

SUA RFC requires RC in ACTIVE ACK message, while the RC in ACTIVE is
optional. Perhaps, this is OK, but the RC in INACTIVE ACK is optional.

What is the reason for that difference.

Thank you in advance

--
Ilie

_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran

------=_Part_1845_30771384.1159005652913-- --===============0432346437== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0432346437==-- From sigtran-bounces@ietf.org Sat Sep 23 06:48:16 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GR538-0004iI-Bq; Sat, 23 Sep 2006 06:47:58 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GR536-0004iC-Op for sigtran@ietf.org; Sat, 23 Sep 2006 06:47:56 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GR535-0003xG-BU for sigtran@ietf.org; Sat, 23 Sep 2006 06:47:56 -0400 Received: from ns.pigworks.openss7.net (IDENT:KD9Kh/Lpgc9wAR2WKrQvJNrx1QQT1BzI@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8NAlsD19820; Sat, 23 Sep 2006 04:47:54 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8NAlsO13024; Sat, 23 Sep 2006 04:47:54 -0600 Date: Sat, 23 Sep 2006 04:47:54 -0600 From: "Brian F. G. Bidulock" To: Saurabh Jain Subject: Re: [Sigtran] Mandatory/optional RC in ACTIVE/INACTIVE ACK (SUA) Message-ID: <20060923044754.F11696@openss7.org> Mail-Followup-To: Saurabh Jain , Ilie Glib , sigtran References: <17b146d60609220518t67c2cdfcme935c2ff2f7fd8aa@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from saur99jain@gmail.com on Sat, Sep 23, 2006 at 03:30:52PM +0530 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 52e1467c2184c31006318542db5614d5 Cc: sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Saurabh, RC is not really optional in ASP Active Ack: it is conditional. If an RC value is specified int the ASP Active, the RC value MUST be sent in the ASP Active Ack or it is an error, see section 4.3.4.3.: "... The Routing Context parameter MUST be included in the ASP Active Ack messages(s) if the received ASP Active message contained any Routing Contexts. ..." THe same is true for ASP Inactive Ack: if an RC was sent in the ASP Inactive, it MUST be sent in the ASP Inactive Ack. M3UA calls them both Optional, which they really are not in all circumstances. So, for both ASP Active Ack and ASP Inactive Ack they should probably read: Routing Context Mandatory *1 *1 - The Routing Context parameter MAY be omitted if there was no Routing Context parameter in the corresponding ASP (In)Active message. This will agree with the text in 4.3.4.3 and 4.3.4.4. One for the I-G. (Is John still maintaining it?) --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Mon Sep 25 08:04:42 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRpCB-0002Kc-Hq; Mon, 25 Sep 2006 08:04:23 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRpCA-0002KX-Rz for sigtran@ietf.org; Mon, 25 Sep 2006 08:04:22 -0400 Received: from web54002.mail.yahoo.com ([206.190.36.226]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GRpC9-00080H-Av for sigtran@ietf.org; Mon, 25 Sep 2006 08:04:22 -0400 Received: (qmail 79414 invoked by uid 60001); 25 Sep 2006 12:04:20 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=Bat235gzt3lVxCmuKY+NMXhLfOy3hw7qHRp1SqKkJVhbrGeH7NuMLplyD2nxXyKZAo5GDakwqejXj0elwQ4zhXjLrBFxOqaPEiQluhPjwbkJ50fpA2YXrBFkoaOXXn8DzxMuRogBKptZDlGVEE3E4eO61jfFceVN3k5ZqrUoH1M= ; Message-ID: <20060925120420.79412.qmail@web54002.mail.yahoo.com> Received: from [220.227.132.114] by web54002.mail.yahoo.com via HTTP; Mon, 25 Sep 2006 05:04:20 PDT Date: Mon, 25 Sep 2006 05:04:20 -0700 (PDT) From: Saraswati Bose To: Brian Bidulock , sigtran MIME-Version: 1.0 X-Spam-Score: 0.1 (/) X-Scan-Signature: 9182cfff02fae4f1b6e9349e01d62f32 Cc: Subject: [Sigtran] XUA Response message against multiple Req messages X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1256236879==" Errors-To: sigtran-bounces@ietf.org --===============1256236879== Content-Type: multipart/alternative; boundary="0-1716162718-1159185860=:79329" Content-Transfer-Encoding: 8bit --0-1716162718-1159185860=:79329 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi Brian, If we receive multilple ASP UP from the same ASP, before sending ASP UP ACK,whether we should generate that many number of UP ACK messages or a single UP ACK. Regards, Saraswati. --------------------------------- Get your own web address for just $1.99/1st yr. We'll help. Yahoo! Small Business. --0-1716162718-1159185860=:79329 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit
Hi Brian,
If we receive multilple ASP UP from the same ASP, before sending ASP UP ACK,whether we should generate that many number of UP ACK messages or a single UP ACK.
 
Regards,
Saraswati.
 


Get your own web address for just $1.99/1st yr. We'll help. Yahoo! Small Business. --0-1716162718-1159185860=:79329-- --===============1256236879== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============1256236879==-- From sigtran-bounces@ietf.org Mon Sep 25 08:16:50 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRpO3-0007oC-UN; Mon, 25 Sep 2006 08:16:39 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRpO2-0007o7-W3 for sigtran@ietf.org; Mon, 25 Sep 2006 08:16:38 -0400 Received: from nz-out-0102.google.com ([64.233.162.195]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GRpO1-0000Sz-Of for sigtran@ietf.org; Mon, 25 Sep 2006 08:16:38 -0400 Received: by nz-out-0102.google.com with SMTP id q3so466478nzb for ; Mon, 25 Sep 2006 05:16:37 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=googlemail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=sW5w3nh1SeXc0Tel8DNJShf1FxgWgyowDL66PPR9YUjAmHP1ZLB4kffXJbYb8hCn+edtJC3TfJAkH/x2E2MwSyIr3NlRfCnMOstTAmpJTi7pM4p5vuvH46B6Ym2JjuC0ELJSswu0oxio3PEOEzBwcbS5c/M83GzWrA9TZGnWxdw= Received: by 10.64.193.9 with SMTP id q9mr933656qbf; Mon, 25 Sep 2006 05:16:37 -0700 (PDT) Received: by 10.65.251.15 with HTTP; Mon, 25 Sep 2006 05:16:37 -0700 (PDT) Message-ID: <17b146d60609250516m2d411968p934da359126abb6f@mail.gmail.com> Date: Mon, 25 Sep 2006 14:16:37 +0200 From: "Ilie Glib" To: "Saraswati Bose" Subject: Re: [Sigtran] XUA Response message against multiple Req messages In-Reply-To: <20060925120420.79412.qmail@web54002.mail.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20060925120420.79412.qmail@web54002.mail.yahoo.com> X-Spam-Score: 0.0 (/) X-Scan-Signature: 39bd8f8cbb76cae18b7e23f7cf6b2b9f Cc: Brian Bidulock , sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hello Saraswati, just one Ack is needed. If you did not answer other Up messages, you may forget about those. I wonder, what architecture would it be, which firstly collects Up messages and then decides on acknowledging those. Regards -Ilie On 9/25/06, Saraswati Bose wrote: > Hi Brian, > If we receive multilple ASP UP from the same ASP, before sending ASP UP > ACK,whether we should generate that many number of UP ACK messages or a > single UP ACK. > > Regards, > Saraswati. > > > ________________________________ > Get your own web address for just $1.99/1st yr. We'll help. Yahoo! Small > Business. > > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > -- Ilie _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Mon Sep 25 08:29:45 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRpaW-000597-8B; Mon, 25 Sep 2006 08:29:32 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRpaV-000592-TP for sigtran@ietf.org; Mon, 25 Sep 2006 08:29:31 -0400 Received: from wx-out-0506.google.com ([66.249.82.233]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GRpaU-0001ZR-NA for sigtran@ietf.org; Mon, 25 Sep 2006 08:29:31 -0400 Received: by wx-out-0506.google.com with SMTP id t4so1895604wxc for ; Mon, 25 Sep 2006 05:29:30 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type; b=eDuibOzQREgjgsm0IRjhNVqJLKtBZUTIMWajaL1FEcUQ33ehYcBY+zRHOpCcilwy9Yl3Ncw0I+yKqjKDgys/h2tw/cJXCzioD8A+Php7ZV/n3NW1nwVMYAoa21Q8nXc6nBGviBXIWVrEjzq6a2k/ZmMcOJhFXNywViXc6drVE7o= Received: by 10.90.84.17 with SMTP id h17mr1186913agb; Mon, 25 Sep 2006 05:29:30 -0700 (PDT) Received: by 10.90.65.2 with HTTP; Mon, 25 Sep 2006 05:29:29 -0700 (PDT) Message-ID: Date: Mon, 25 Sep 2006 17:59:29 +0530 From: "Ambika Tripathy" To: sigtran@ietf.org MIME-Version: 1.0 X-Spam-Score: 0.5 (/) X-Scan-Signature: 2409bba43e9c8d580670fda8b695204a Subject: [Sigtran] barryn@adax.com X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1032098076==" Errors-To: sigtran-bounces@ietf.org --===============1032098076== Content-Type: multipart/alternative; boundary="----=_Part_33967_33242976.1159187369710" ------=_Part_33967_33242976.1159187369710 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi Barry Can I use one SCTP association for multiple ASPs or there is only one to one mapping between one SCTP association and one ASP. -- Thanks and Regards, Ambika Prasad Tripathy Nethawk Networks ------=_Part_33967_33242976.1159187369710 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline
Hi Barry

Can I use one SCTP association for multiple ASPs or there is only one to one mapping between one SCTP association and one ASP.

--
Thanks and Regards,

Ambika Prasad Tripathy
Nethawk Networks

------=_Part_33967_33242976.1159187369710-- --===============1032098076== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============1032098076==-- From sigtran-bounces@ietf.org Mon Sep 25 08:34:30 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRpf6-0007TQ-1T; Mon, 25 Sep 2006 08:34:16 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRpf5-0007TK-AF for sigtran@ietf.org; Mon, 25 Sep 2006 08:34:15 -0400 Received: from phl-28-b-170.phl.dsl.cerfnet.com ([63.242.157.170]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GRpf3-0001vk-T3 for sigtran@ietf.org; Mon, 25 Sep 2006 08:34:15 -0400 Received: from bn001320 (bn001320 [192.168.1.61]) by phl-28-b-170.phl.dsl.cerfnet.com (8.12.8/8.12.8) with SMTP id k8PCYCtc031861; Mon, 25 Sep 2006 08:34:12 -0400 From: "Barry Nagelberg" To: Subject: RE: [Sigtran] barryn@adax.com Date: Mon, 25 Sep 2006 08:36:43 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300 In-Reply-To: Importance: Normal X-Spam-Score: 1.5 (+) X-Scan-Signature: 93238566e09e6e262849b4f805833007 Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Ambika, No, you cannot use one SCTP association for multiple ASPs. There is a 1:1:1 relationship between SGP:association:ASP. Barry Nagelberg Adax, Inc. -----Original Message----- From: Ambika Tripathy [mailto:ambika.tripathy@gmail.com] Sent: Monday, September 25, 2006 8:29 AM To: sigtran@ietf.org Subject: [Sigtran] barryn@adax.com Hi Barry Can I use one SCTP association for multiple ASPs or there is only one to one mapping between one SCTP association and one ASP. -- Thanks and Regards, Ambika Prasad Tripathy Nethawk Networks _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Mon Sep 25 09:00:02 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRq3w-0001X1-4e; Mon, 25 Sep 2006 08:59:56 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRq3u-0001Wg-6X for sigtran@ietf.org; Mon, 25 Sep 2006 08:59:54 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GRq3r-0004Ez-PP for sigtran@ietf.org; Mon, 25 Sep 2006 08:59:54 -0400 Received: from ns.pigworks.openss7.net (IDENT:pfJ5ItISZ8QYJWC2n7jIoE5RyVUjOFsz@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8PCxpD23211; Mon, 25 Sep 2006 06:59:51 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8PCxoP17453; Mon, 25 Sep 2006 06:59:50 -0600 Date: Mon, 25 Sep 2006 06:59:50 -0600 From: "Brian F. G. Bidulock" To: Saraswati Bose Message-ID: <20060925065950.A16895@openss7.org> Mail-Followup-To: Saraswati Bose , sigtran References: <20060925120420.79412.qmail@web54002.mail.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060925120420.79412.qmail@web54002.mail.yahoo.com>; from saraswatibose@yahoo.com on Mon, Sep 25, 2006 at 05:04:20AM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 39bd8f8cbb76cae18b7e23f7cf6b2b9f Cc: sigtran Subject: [Sigtran] Re: XUA Response message against multiple Req messages X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Saraswati, See the last two paragraphs in any UA's section 4.3.4.1 (ASP Up Procedures). Please read the specs before asking this kind of question. --brian Saraswati Bose wrote: (Mon, 25 Sep 2006 05:04:20) > > Hi Brian, > > If we receive multilple ASP UP from the same ASP, before sending ASP > UP ACK,whether we should generate that many number of UP ACK messages > or a single UP ACK. > > > > Regards, > > Saraswati. > > > _________________________________________________________________ > > Get your own [1]web address for just $1.99/1st yr. We'll help. > [2]Yahoo! Small Business. > > References > > 1. http://us.rd.yahoo.com/evt=43290/*http://smallbusiness.yahoo.com/domains > 2. http://us.rd.yahoo.com/evt=41244/*http://smallbusiness.yahoo.com/ -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Mon Sep 25 09:40:52 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRqhC-00025M-PG; Mon, 25 Sep 2006 09:40:30 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GRqhC-00025A-0s for sigtran@ietf.org; Mon, 25 Sep 2006 09:40:30 -0400 Received: from web56713.mail.re3.yahoo.com ([66.196.97.72]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GRqhA-0000a6-Ox for sigtran@ietf.org; Mon, 25 Sep 2006 09:40:30 -0400 Received: (qmail 27199 invoked by uid 60001); 25 Sep 2006 13:40:28 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=2ppkiS2AYwJn9Yzpm+f8xwOHQLDsLokiLxHgXT5qhkA3Z0PaUNVH3ePgJyfNQchVY/STByX2gXXDdGkkhHLX8EFov8vZ/Ivv2v5PC4zw8CJoO/hEGqjkn9D7xf4MvvVjCupANYt0HnBdn6McWjMhnvRC9N1+ADwIyRb54fs7J/4= ; Message-ID: <20060925134028.27197.qmail@web56713.mail.re3.yahoo.com> Received: from [220.227.132.114] by web56713.mail.re3.yahoo.com via HTTP; Mon, 25 Sep 2006 06:40:28 PDT Date: Mon, 25 Sep 2006 06:40:28 -0700 (PDT) From: Padmalochan Moharana To: sigtran , bidulock MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="0-665607132-1159191628=:25647" Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: 25620135586de10c627e3628c432b04a Cc: Subject: [Sigtran] Fwd: Re: Regarding Traffic mode in ASPTM message. X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org --0-665607132-1159191628=:25647 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Content-Id: Content-Disposition: inline Note: forwarded message attached. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com --0-665607132-1159191628=:25647 Content-Type: message/rfc822 Content-Transfer-Encoding: 8bit Received: from [220.227.132.114] by web56710.mail.re3.yahoo.com via HTTP; Thu, 21 Sep 2006 02:01:02 PDT Date: Thu, 21 Sep 2006 02:01:02 -0700 (PDT) From: Padmalochan Moharana Subject: Re: Regarding Traffic mode in ASPTM message. To: bidulock@openss7.org In-Reply-To: <20060921025250.B23147@openss7.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi Brian , then how we are goiing to activate the ASP/SG without any traffic mode in case of multiple ASP in a AS. Br, --- "Brian F. G. Bidulock" wrote: > Padmalochan, > > Padmalochan Moharana wrote: (Thu, 21 Sep 2006 > 00:45:51) > > > > 1-Should traffic mode is treated as mandatory if > the > > traffic mode is other than Override. > > No. > > > 2- if SG receive the ASP_ACTIVE without traffic > mode > > parameter should SG consider it as Override. Or > else > > send error against it if SG has different value > > configured. > > No and No. > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com --0-665607132-1159191628=:25647 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --0-665607132-1159191628=:25647-- From sigtran-bounces@ietf.org Tue Sep 26 03:18:12 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS7CM-0006fR-6q; Tue, 26 Sep 2006 03:17:46 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS7CK-0006fM-KR for sigtran@ietf.org; Tue, 26 Sep 2006 03:17:44 -0400 Received: from web56704.mail.re3.yahoo.com ([66.196.97.63]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GS7CJ-00036P-5T for sigtran@ietf.org; Tue, 26 Sep 2006 03:17:44 -0400 Received: (qmail 64368 invoked by uid 60001); 26 Sep 2006 07:17:43 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=ExAm84POth0MsP8YeEyi+RnitkQDBvEsm+CRJmJWudUNBNWLqgi6B9QUIVcPsYQoIb+gLHXd4MQ4ySx/Kq831oP9J6YZQkY6uckhznPQMMolT/CgU8+ZNk7SjW3hoFRIERSiS9KAzE5hXwMvUOhnC5vthSqxbvyFxBi7LemZ12I= ; Message-ID: <20060926071743.64366.qmail@web56704.mail.re3.yahoo.com> Received: from [220.227.132.114] by web56704.mail.re3.yahoo.com via HTTP; Tue, 26 Sep 2006 00:17:42 PDT Date: Tue, 26 Sep 2006 00:17:42 -0700 (PDT) From: Padmalochan Moharana To: sigtran , bidulock MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: cf4fa59384e76e63313391b70cd0dd25 Cc: Subject: [Sigtran] regarding INIT ACK from different destination IP. X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi Brian please suggest for the following doubt. Should endoint (in case of Multi-homed), encode COOKIE ECHO on receive the INIT_ACK from a different destination IP of the INIT or it should ignores the INIT_ACK. Br, Padmalochan __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Tue Sep 26 03:27:17 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS7LV-0002za-QY; Tue, 26 Sep 2006 03:27:13 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS7LU-0002zU-H7 for sigtran@ietf.org; Tue, 26 Sep 2006 03:27:12 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GS7LT-0004vF-4C for sigtran@ietf.org; Tue, 26 Sep 2006 03:27:12 -0400 Received: from ns.pigworks.openss7.net (IDENT:rxcew+z0ZbH9WTTPa0J6poa1O97v9RNu@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8Q7RAD18586; Tue, 26 Sep 2006 01:27:10 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8Q7RAP10143; Tue, 26 Sep 2006 01:27:10 -0600 Date: Tue, 26 Sep 2006 01:27:09 -0600 From: "Brian F. G. Bidulock" To: Padmalochan Moharana Message-ID: <20060926012709.A10068@openss7.org> Mail-Followup-To: Padmalochan Moharana , sigtran References: <20060926071743.64366.qmail@web56704.mail.re3.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060926071743.64366.qmail@web56704.mail.re3.yahoo.com>; from moharana_p@yahoo.com on Tue, Sep 26, 2006 at 12:17:42AM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 93238566e09e6e262849b4f805833007 Cc: sigtran Subject: [Sigtran] Re: regarding INIT ACK from different destination IP. X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Padmalochan, Padmalochan Moharana wrote: (Tue, 26 Sep 2006 00:17:42) > Hi Brian > > please suggest for the following doubt. > > Should endoint (in case of Multi-homed), encode COOKIE > ECHO on receive the INIT_ACK from a different > destination IP of the INIT or it should ignores the > INIT_ACK. If the INIT_ACK corresponds to an INIT that was sent (addresses in the address list, verification tag, parameters and a cookie), send the COOKIE ECHO. Why would you think otherwise? --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Tue Sep 26 03:38:17 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS7W0-0000l8-3R; Tue, 26 Sep 2006 03:38:04 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS7Vz-0000l3-3W for sigtran@ietf.org; Tue, 26 Sep 2006 03:38:03 -0400 Received: from wx-out-0506.google.com ([66.249.82.233]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GS7Vx-0007AZ-Pz for sigtran@ietf.org; Tue, 26 Sep 2006 03:38:03 -0400 Received: by wx-out-0506.google.com with SMTP id t4so2213154wxc for ; Tue, 26 Sep 2006 00:37:59 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=q1i61loxgF5nIrAdkS2S6J4kqtUAgfSs5TF/GzDEIdv3jbQVvxmOvMDs4TIX4KeueLx+7vVc4KoteKM8zGR7S2En/SuQlvXbHkog5bKgJslY4oMcY8dHi7l58BkPTCYTD5/OeAjXqQF/fIkTVQqICLstcRaRfSo9Pf8W8fQFBHs= Received: by 10.90.65.11 with SMTP id n11mr55507aga; Tue, 26 Sep 2006 00:37:59 -0700 (PDT) Received: by 10.90.65.2 with HTTP; Tue, 26 Sep 2006 00:37:59 -0700 (PDT) Message-ID: Date: Tue, 26 Sep 2006 13:07:59 +0530 From: "Ambika Tripathy" To: bidulock@openss7.org, "Padmalochan Moharana" , sigtran Subject: Re: [Sigtran] Re: regarding INIT ACK from different destination IP. In-Reply-To: <20060926012709.A10068@openss7.org> MIME-Version: 1.0 References: <20060926071743.64366.qmail@web56704.mail.re3.yahoo.com> <20060926012709.A10068@openss7.org> X-Spam-Score: 0.1 (/) X-Scan-Signature: bdc523f9a54890b8a30dd6fd53d5d024 Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0481717235==" Errors-To: sigtran-bounces@ietf.org --===============0481717235== Content-Type: multipart/alternative; boundary="----=_Part_1822_8096022.1159256279351" ------=_Part_1822_8096022.1159256279351 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi Brain, The section 5.1.2 of the rfc-2960 tell some thing differnet regarding the INIT_ACK transmission. " Note: The INIT-ACK MUST be sent to the source address of the INIT." There is such clear description present to transmit, INIT_ACK to an IP address which is present in INIT's IP address list in case of multihomed end point. Is it an implementation dependent feature? -- Br, Ambika Prasad Tripathy Cell: +91-94375 47730 On 9/26/06, Brian F. G. Bidulock wrote: > > Padmalochan, > > Padmalochan Moharana wrote: (Tue, 26 Sep 2006 00:17:42) > > Hi Brian > > > > please suggest for the following doubt. > > > > Should endoint (in case of Multi-homed), encode COOKIE > > ECHO on receive the INIT_ACK from a different > > destination IP of the INIT or it should ignores the > > INIT_ACK. > > If the INIT_ACK corresponds to an INIT that was sent (addresses > in the address list, verification tag, parameters and a cookie), > send the COOKIE ECHO. > > Why would you think otherwise? > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > ------=_Part_1822_8096022.1159256279351 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline
Hi Brain,
 
    The section 5.1.2 of the rfc-2960 tell some thing differnet regarding the INIT_ACK transmission.
" Note: The INIT-ACK MUST be sent to the source address of the INIT."
 
There is such clear description present to transmit, INIT_ACK to an IP address which is present in INIT's IP address list in case of multihomed end point.
 
Is it an implementation dependent feature?
 
--
Br,
Ambika Prasad Tripathy
Cell: +91-94375 47730

 
On 9/26/06, Brian F. G. Bidulock <bidulock@openss7.org> wrote:
Padmalochan,

Padmalochan Moharana wrote:         (Tue, 26 Sep 2006 00:17:42)
> Hi Brian
>
> please suggest for the following doubt.
>
> Should endoint (in case of Multi-homed), encode COOKIE
> ECHO on receive the INIT_ACK from a different
> destination IP of the INIT or it should  ignores the
> INIT_ACK.

If the INIT_ACK corresponds to an INIT that was sent (addresses
in the address list, verification tag, parameters and a cookie),
send the COOKIE ECHO.

Why would you think otherwise?

--brian

--
Brian F. G. Bidulock
bidulock@openss7.org
http://www.openss7.org/

_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran



------=_Part_1822_8096022.1159256279351-- --===============0481717235== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0481717235==-- From sigtran-bounces@ietf.org Tue Sep 26 04:00:37 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS7rU-0003qS-1P; Tue, 26 Sep 2006 04:00:16 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS7qt-0003dv-HS for sigtran@ietf.org; Tue, 26 Sep 2006 03:59:39 -0400 Received: from hostreea4.alcatel.com ([143.209.238.164] helo=audl751.usa.alcatel.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GS7kn-0003oT-V3 for sigtran@ietf.org; Tue, 26 Sep 2006 03:53:23 -0400 Received: from ssd.usa.alcatel.com (spdmail-qfe1.ssd.usa.alcatel.com [172.22.222.60]) by audl751.usa.alcatel.com (ALCANET) with ESMTP id k8Q7rKk1012496; Tue, 26 Sep 2006 02:53:21 -0500 Received: from axes-mach01.usa.alcatel.com (axes-mach01.usa.alcatel.com [10.255.0.20]) by ssd.usa.alcatel.com (8.12.8/8.12.8) with ESMTP id k8Q7r1gq011986; Tue, 26 Sep 2006 02:53:02 -0500 (CDT) Received: from [10.255.1.164] (ax-sp-pc112.usa.alcatel.com [10.255.1.164]) by axes-mach01.usa.alcatel.com (8.12.10+Sun/8.12.2) with ESMTP id k8Q7wVj0023718; Tue, 26 Sep 2006 13:28:32 +0530 (IST) Message-ID: <4518DAD3.2010300@axes-mach01.usa.alcatel.com> Date: Tue, 26 Sep 2006 13:16:27 +0530 From: Bhanu Prakash User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: bidulock@openss7.org Subject: Re: [Sigtran] Re: regarding INIT ACK from different destination IP. References: <20060926071743.64366.qmail@web56704.mail.re3.yahoo.com> <20060926012709.A10068@openss7.org> In-Reply-To: <20060926012709.A10068@openss7.org> X-Scanned-By: MIMEDefang 2.51 on 143.209.238.34 X-Spam-Score: 0.1 (/) X-Scan-Signature: 827a2a57ca7ab0837847220f447e8d56 Cc: Padmalochan Moharana , sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1851495566==" Errors-To: sigtran-bounces@ietf.org This is a multi-part message in MIME format. --===============1851495566== Content-Type: multipart/alternative; boundary="------------060602080404030408030206" This is a multi-part message in MIME format. --------------060602080404030408030206 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Brian, Please refer RFC-4460: ************************************************ 2.36.2. Text Changes to the Document --------- Old text: None --------- --------- New text: (Section 5.4) --------- 5.4. Path Verification During association establishment, the two peers exchange a list of addresses. In the predominant case, these lists accurately represent the addresses owned by each peer. However, it is possible that a misbehaving peer may supply addresses that it does not own. To prevent this, the following rules are applied to all addresses of the new association: 1) Any address passed to the sender of the INIT by its upper layer is automatically considered to be CONFIRMED. 2) For the receiver of the COOKIE-ECHO the only CONFIRMED address is the one that the INIT-ACK was sent to. 3) All other addresses not covered by rules 1 and 2 are considered UNCONFIRMED and are subject to probing for verification. ****************************************************************** In this case since the INIT-ACK is received from an un-confirmed address, should it be accepted or not..? Thanks Bhanuprakash. Brian F. G. Bidulock wrote: >Padmalochan, > >Padmalochan Moharana wrote: (Tue, 26 Sep 2006 00:17:42) > > >>Hi Brian >> >>please suggest for the following doubt. >> >>Should endoint (in case of Multi-homed), encode COOKIE >>ECHO on receive the INIT_ACK from a different >>destination IP of the INIT or it should ignores the >>INIT_ACK. >> >> > >If the INIT_ACK corresponds to an INIT that was sent (addresses >in the address list, verification tag, parameters and a cookie), >send the COOKIE ECHO. > >Why would you think otherwise? > >--brian > > > --------------060602080404030408030206 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Brian,

Please refer RFC-4460:

************************************************
2.36.2.  Text Changes to the Document

   ---------
   Old text: None
   ---------

   ---------
   New text: (Section 5.4)
   ---------
   5.4.  Path Verification

   During association establishment, the two peers exchange a list of
   addresses.  In the predominant case, these lists accurately represent
   the addresses owned by each peer.  However, it is possible that a
   misbehaving peer may supply addresses that it does not own.  To
   prevent this, the following rules are applied to all addresses of the
   new association:

   1) Any address passed to the sender of the INIT by its upper layer is
      automatically considered to be CONFIRMED.

   2) For the receiver of the COOKIE-ECHO the only CONFIRMED address is
      the one that the INIT-ACK was sent to.

   3) All other addresses not covered by rules 1 and 2 are considered
      UNCONFIRMED and are subject to probing for verification.

******************************************************************

In this case since the INIT-ACK is received from an un-confirmed address, should
it be accepted or not..?

Thanks
Bhanuprakash.


Brian F. G. Bidulock wrote:
Padmalochan,

Padmalochan Moharana wrote:         (Tue, 26 Sep 2006 00:17:42)
  
Hi Brian

please suggest for the following doubt.

Should endoint (in case of Multi-homed), encode COOKIE
ECHO on receive the INIT_ACK from a different
destination IP of the INIT or it should  ignores the
INIT_ACK.
    

If the INIT_ACK corresponds to an INIT that was sent (addresses
in the address list, verification tag, parameters and a cookie),
send the COOKIE ECHO.

Why would you think otherwise?

--brian

  

--------------060602080404030408030206-- --===============1851495566== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============1851495566==-- From sigtran-bounces@ietf.org Tue Sep 26 04:01:54 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS7t4-0004sW-O4; Tue, 26 Sep 2006 04:01:54 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS7t3-0004sR-FH for sigtran@ietf.org; Tue, 26 Sep 2006 04:01:53 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GS7t2-0007FL-2O for sigtran@ietf.org; Tue, 26 Sep 2006 04:01:53 -0400 Received: from ns.pigworks.openss7.net (IDENT:HU+Vt0hPvdV5Cq4UAAlDYpEASfecbKJD@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8Q81pD19935; Tue, 26 Sep 2006 02:01:51 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8Q81pA10909; Tue, 26 Sep 2006 02:01:51 -0600 Date: Tue, 26 Sep 2006 02:01:51 -0600 From: "Brian F. G. Bidulock" To: Bhanu Prakash Subject: Re: [Sigtran] Re: regarding INIT ACK from different destination IP. Message-ID: <20060926020151.A10692@openss7.org> Mail-Followup-To: Bhanu Prakash , Padmalochan Moharana , sigtran References: <20060926071743.64366.qmail@web56704.mail.re3.yahoo.com> <20060926012709.A10068@openss7.org> <4518DAD3.2010300@axes-mach01.usa.alcatel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <4518DAD3.2010300@axes-mach01.usa.alcatel.com>; from bhanup@axes-mach01.usa.alcatel.com on Tue, Sep 26, 2006 at 01:16:27PM +0530 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: d0bdc596f8dd1c226c458f0b4df27a88 Cc: Padmalochan Moharana , sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Bhanu, That passage does not say to drop the INIT-ACK. --brian Bhanu Prakash wrote: (Tue, 26 Sep 2006 13:16:27) > > Brian, > Please refer RFC-4460: > ************************************************ > 2.36.2. Text Changes to the Document > --------- > Old text: None > --------- > --------- > New text: (Section 5.4) > --------- > 5.4. Path Verification > During association establishment, the two peers exchange a list of > addresses. In the predominant case, these lists accurately > represent > the addresses owned by each peer. However, it is possible that a > misbehaving peer may supply addresses that it does not own. To > prevent this, the following rules are applied to all addresses of > the > new association: > 1) Any address passed to the sender of the INIT by its upper layer > is > automatically considered to be CONFIRMED. > 2) For the receiver of the COOKIE-ECHO the only CONFIRMED address > is > the one that the INIT-ACK was sent to. > 3) All other addresses not covered by rules 1 and 2 are considered > UNCONFIRMED and are subject to probing for verification. > ****************************************************************** > In this case since the INIT-ACK is received from an un-confirmed > address, should > it be accepted or not..? > Thanks > Bhanuprakash. > Brian F. G. Bidulock wrote: > > Padmalochan, > > Padmalochan Moharana wrote: (Tue, 26 Sep 2006 00:17:42) > > > Hi Brian > > please suggest for the following doubt. > > Should endoint (in case of Multi-homed), encode COOKIE > ECHO on receive the INIT_ACK from a different > destination IP of the INIT or it should ignores the > INIT_ACK. > > > If the INIT_ACK corresponds to an INIT that was sent (addresses > in the address list, verification tag, parameters and a cookie), > send the COOKIE ECHO. > > Why would you think otherwise? > > --brian > > -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Tue Sep 26 04:14:36 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS85D-0003sA-NG; Tue, 26 Sep 2006 04:14:27 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS85B-0003p6-Lh for sigtran@ietf.org; Tue, 26 Sep 2006 04:14:26 -0400 Received: from hostreea2.alcatel.com ([143.209.238.162] helo=audl953.usa.alcatel.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GS85A-0002xl-7C for sigtran@ietf.org; Tue, 26 Sep 2006 04:14:25 -0400 Received: from ssd.usa.alcatel.com (spdmail-qfe1.ssd.usa.alcatel.com [172.22.222.60]) by audl953.usa.alcatel.com (ALCANET) with ESMTP id k8Q8EKJv000540; Tue, 26 Sep 2006 03:14:23 -0500 Received: from axes-mach01.usa.alcatel.com (axes-mach01.usa.alcatel.com [10.255.0.20]) by ssd.usa.alcatel.com (8.12.8/8.12.8) with ESMTP id k8Q8Dbgq015787; Tue, 26 Sep 2006 03:13:38 -0500 (CDT) Received: from [10.255.1.77] (ax-sp-pc27.usa.alcatel.com [10.255.1.77]) by axes-mach01.usa.alcatel.com (8.12.10+Sun/8.12.2) with ESMTP id k8Q8J5j0025999; Tue, 26 Sep 2006 13:49:06 +0530 (IST) Message-ID: <4518E187.6050000@axes-mach01.usa.alcatel.com> Date: Tue, 26 Sep 2006 13:45:03 +0530 From: Satya Prasad Nemana Organization: Tech Mahindra R&D Services, 9/7 Hosur Road, Bangalore-560029 Ph :25539232/33 Extn 1243 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ambika Tripathy Subject: Re: [Sigtran] Re: regarding INIT ACK from different destination IP. References: <20060926071743.64366.qmail@web56704.mail.re3.yahoo.com> <20060926012709.A10068@openss7.org> In-Reply-To: X-Scanned-By: MIMEDefang 2.51 on 143.209.238.34 X-Spam-Score: 0.1 (/) X-Scan-Signature: 0cff8c3ec906d056784362c06f5f88c1 Cc: Padmalochan Moharana , bidulock@openss7.org, sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1371412358==" Errors-To: sigtran-bounces@ietf.org This is a multi-part message in MIME format. --===============1371412358== Content-Type: multipart/alternative; boundary="------------070809050809080203090002" This is a multi-part message in MIME format. --------------070809050809080203090002 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Ambika, Source address here refers to the IP source address. -Satya Prasad Ambika Tripathy wrote: > Hi Brain, > > The section 5.1.2 of the rfc-2960 tell some thing differnet > regarding the INIT_ACK transmission. > " Note: The INIT-ACK MUST be sent to the source address of the INIT." > > There is such clear description present to transmit, INIT_ACK to an IP > address which is present in INIT's IP address list in case of > multihomed end point. > > Is it an implementation dependent feature? > > -- > Br, > Ambika Prasad Tripathy > Cell: +91-94375 47730 > > > On 9/26/06, Brian F. G. Bidulock > wrote: > > Padmalochan, > > Padmalochan Moharana wrote: (Tue, 26 Sep 2006 00:17:42) > > Hi Brian > > > > please suggest for the following doubt. > > > > Should endoint (in case of Multi-homed), encode COOKIE > > ECHO on receive the INIT_ACK from a different > > destination IP of the INIT or it should ignores the > > INIT_ACK. > > If the INIT_ACK corresponds to an INIT that was sent (addresses > in the address list, verification tag, parameters and a cookie), > send the COOKIE ECHO. > > Why would you think otherwise? > > --brian > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > > > > >------------------------------------------------------------------------ > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > > --------------070809050809080203090002 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Ambika,

Source address here refers to the IP source address.

-Satya Prasad



Ambika Tripathy wrote:
Hi Brain,
 
    The section 5.1.2 of the rfc-2960 tell some thing differnet regarding the INIT_ACK transmission.
" Note: The INIT-ACK MUST be sent to the source address of the INIT."
 
There is such clear description present to transmit, INIT_ACK to an IP address which is present in INIT's IP address list in case of multihomed end point.
 
Is it an implementation dependent feature?
 
--
Br,
Ambika Prasad Tripathy
Cell: +91-94375 47730

 
On 9/26/06, Brian F. G. Bidulock <bidulock@openss7.org> wrote:
Padmalochan,

Padmalochan Moharana wrote:         (Tue, 26 Sep 2006 00:17:42)
> Hi Brian
>
> please suggest for the following doubt.
>
> Should endoint (in case of Multi-homed), encode COOKIE
> ECHO on receive the INIT_ACK from a different
> destination IP of the INIT or it should  ignores the
> INIT_ACK.

If the INIT_ACK corresponds to an INIT that was sent (addresses
in the address list, verification tag, parameters and a cookie),
send the COOKIE ECHO.

Why would you think otherwise?

--brian

--
Brian F. G. Bidulock
bidulock@openss7.org
http://www.openss7.org/

_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran




_______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran
--------------070809050809080203090002-- --===============1371412358== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============1371412358==-- From sigtran-bounces@ietf.org Tue Sep 26 04:33:34 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS8NG-0004eH-8t; Tue, 26 Sep 2006 04:33:06 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS8NE-0004dm-Ip for sigtran@ietf.org; Tue, 26 Sep 2006 04:33:04 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GS89P-0003rs-Lp for sigtran@ietf.org; Tue, 26 Sep 2006 04:18:49 -0400 Received: from ns.pigworks.openss7.net (IDENT:scCwLP511vU6f8IzeLjujTwNhaggJnIO@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8Q8IkD20259; Tue, 26 Sep 2006 02:18:46 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8Q8IkQ11237; Tue, 26 Sep 2006 02:18:46 -0600 Date: Tue, 26 Sep 2006 02:18:46 -0600 From: "Brian F. G. Bidulock" To: Ambika Tripathy Subject: Re: [Sigtran] Re: regarding INIT ACK from different destination IP. Message-ID: <20060926021846.B10692@openss7.org> Mail-Followup-To: Ambika Tripathy , Padmalochan Moharana , sigtran References: <20060926071743.64366.qmail@web56704.mail.re3.yahoo.com> <20060926012709.A10068@openss7.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from ambika.tripathy@gmail.com on Tue, Sep 26, 2006 at 01:07:59PM +0530 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: ffa9dfbbe7cc58b3fa6b8ae3e57b0aa3 Cc: Padmalochan Moharana , sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Ambika, Ambika Tripathy wrote: (Tue, 26 Sep 2006 13:07:59) > > The section 5.1.2 of the rfc-2960 tell some thing differnet > regarding the INIT_ACK transmission. > > " Note: The INIT-ACK MUST be sent to the source address of the INIT." > > There is such clear description present to transmit, INIT_ACK to an IP > address which is present in INIT's IP address list in case of > multihomed end point. That passage does not require the receiver of the INIT-ACK not to respond to it. Nor does it require an implementation to receive the INIT-ACK on an IP address other than the source address of the corresponding INIT. If I'm being strict about addresses, the destination address must be one of my source addresses from the INIT. If I'm not being strict about addresses, I disregard the destination address altogether. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Tue Sep 26 04:54:36 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS8hs-0007qc-8K; Tue, 26 Sep 2006 04:54:24 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GS8hq-0007p1-Pq for sigtran@ietf.org; Tue, 26 Sep 2006 04:54:22 -0400 Received: from hostreea4.alcatel.com ([143.209.238.164] helo=audl751.usa.alcatel.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GS8hq-0005Yi-BO for sigtran@ietf.org; Tue, 26 Sep 2006 04:54:22 -0400 Received: from ssd.usa.alcatel.com (spdmail-qfe1.ssd.usa.alcatel.com [172.22.222.60]) by audl751.usa.alcatel.com (ALCANET) with ESMTP id k8Q8sL81007661; Tue, 26 Sep 2006 03:54:21 -0500 Received: from axes-mach01.usa.alcatel.com (axes-mach01.usa.alcatel.com [10.255.0.20]) by ssd.usa.alcatel.com (8.12.8/8.12.8) with ESMTP id k8Q8rvgq023120; Tue, 26 Sep 2006 03:53:58 -0500 (CDT) Received: from [10.255.1.164] (ax-sp-pc112.usa.alcatel.com [10.255.1.164]) by axes-mach01.usa.alcatel.com (8.12.10+Sun/8.12.2) with ESMTP id k8Q8xQj0000918; Tue, 26 Sep 2006 14:29:27 +0530 (IST) Message-ID: <4518E91B.7020609@axes-mach01.usa.alcatel.com> Date: Tue, 26 Sep 2006 14:17:23 +0530 From: Bhanu Prakash User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: bidulock@openss7.org Subject: Re: [Sigtran] Re: regarding INIT ACK from different destination IP. References: <20060926071743.64366.qmail@web56704.mail.re3.yahoo.com> <20060926012709.A10068@openss7.org> <4518DAD3.2010300@axes-mach01.usa.alcatel.com> <20060926020151.A10692@openss7.org> In-Reply-To: <20060926020151.A10692@openss7.org> X-Scanned-By: MIMEDefang 2.51 on 143.209.238.34 X-Spam-Score: 0.6 (/) X-Scan-Signature: 6a45e05c1e4343200aa6b327df2c43fc Cc: Padmalochan Moharana , sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0424498589==" Errors-To: sigtran-bounces@ietf.org This is a multi-part message in MIME format. --===============0424498589== Content-Type: multipart/alternative; boundary="------------050505030102040701050407" This is a multi-part message in MIME format. --------------050505030102040701050407 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Brian, In the same section please see the following explanation: *********************** An endpoint MUST NOT send any chunks to an UNCONFIRMED address, with the following exceptions: - A HEARTBEAT including a nonce MAY be sent to an UNCONFIRMED address. - A HEARTBEAT-ACK MAY be sent to an UNCONFIRMED address. - A COOKIE-ACK MAY be sent to an UNCONFIRMED address, but it MUST be bundled with a HEARTBEAT including a nonce. An implementation that does NOT support bundling MUST NOT send a COOKIE-ACK to an UNCONFIRMED address. - A COOKE-ECHO MAY be sent to an UNCONFIRMED address, but it MUST be bundled with a HEARTBEAT including a nonce, and the packet MUST NOT exceed the path MTU. If the implementation does NOT support bundling or if the bundled COOKIE-ECHO plus HEARTBEAT (including nonce) would exceed the path MTU, then the implementation MUST NOT send a COOKIE-ECHO to an UNCONFIRMED address. ************************ Thanks, Bhanuprakash. Brian F. G. Bidulock wrote: >Bhanu, > >That passage does not say to drop the INIT-ACK. > >--brian > >Bhanu Prakash wrote: (Tue, 26 Sep 2006 13:16:27) > > >> Brian, >> Please refer RFC-4460: >> ************************************************ >> 2.36.2. Text Changes to the Document >> --------- >> Old text: None >> --------- >> --------- >> New text: (Section 5.4) >> --------- >> 5.4. Path Verification >> During association establishment, the two peers exchange a list of >> addresses. In the predominant case, these lists accurately >> represent >> the addresses owned by each peer. However, it is possible that a >> misbehaving peer may supply addresses that it does not own. To >> prevent this, the following rules are applied to all addresses of >> the >> new association: >> 1) Any address passed to the sender of the INIT by its upper layer >> is >> automatically considered to be CONFIRMED. >> 2) For the receiver of the COOKIE-ECHO the only CONFIRMED address >> is >> the one that the INIT-ACK was sent to. >> 3) All other addresses not covered by rules 1 and 2 are considered >> UNCONFIRMED and are subject to probing for verification. >> ****************************************************************** >> In this case since the INIT-ACK is received from an un-confirmed >> address, should >> it be accepted or not..? >> Thanks >> Bhanuprakash. >> Brian F. G. Bidulock wrote: >> >>Padmalochan, >> >>Padmalochan Moharana wrote: (Tue, 26 Sep 2006 00:17:42) >> >> >>Hi Brian >> >>please suggest for the following doubt. >> >>Should endoint (in case of Multi-homed), encode COOKIE >>ECHO on receive the INIT_ACK from a different >>destination IP of the INIT or it should ignores the >>INIT_ACK. >> >> >>If the INIT_ACK corresponds to an INIT that was sent (addresses >>in the address list, verification tag, parameters and a cookie), >>send the COOKIE ECHO. >> >>Why would you think otherwise? >> >>--brian >> >> >> >> > > > --------------050505030102040701050407 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Brian,

In the same section please see the following explanation:

***********************

   An endpoint MUST NOT send any chunks to an UNCONFIRMED address, with
   the following exceptions:

   - A HEARTBEAT including a nonce MAY be sent to an UNCONFIRMED
     address.

   - A HEARTBEAT-ACK MAY be sent to an UNCONFIRMED address.

   - A COOKIE-ACK MAY be sent to an UNCONFIRMED address, but it MUST be
     bundled with a HEARTBEAT including a nonce.  An implementation that
     does NOT support bundling MUST NOT send a COOKIE-ACK to an
     UNCONFIRMED address.

   - A COOKE-ECHO MAY be sent to an UNCONFIRMED address, but it MUST be
     bundled with a HEARTBEAT including a nonce, and the packet MUST NOT
     exceed the path MTU.  If the implementation does NOT support
     bundling or if the bundled COOKIE-ECHO plus HEARTBEAT (including
     nonce) would exceed the path MTU, then the implementation MUST NOT
     send a COOKIE-ECHO to an UNCONFIRMED address.

************************

Thanks,
Bhanuprakash.



Brian F. G. Bidulock wrote:
Bhanu,

That passage does not say to drop the INIT-ACK.

--brian

Bhanu Prakash wrote:                                                 (Tue, 26 Sep 2006 13:16:27)
  
   Brian,
   Please refer RFC-4460:
   ************************************************
   2.36.2.  Text Changes to the Document
      ---------
      Old text: None
      ---------
      ---------
      New text: (Section 5.4)
      ---------
      5.4.  Path Verification
      During association establishment, the two peers exchange a list of
       addresses.   In  the  predominant  case,  these  lists  accurately
   represent
      the addresses owned by each peer.  However, it is possible that a
      misbehaving peer may supply addresses that it does not own.  To
       prevent  this, the following rules are applied to all addresses of
   the
      new association:
       1) Any address passed to the sender of the INIT by its upper layer
   is
         automatically considered to be CONFIRMED.
       2)  For the receiver of the COOKIE-ECHO the only CONFIRMED address
   is
         the one that the INIT-ACK was sent to.
      3) All other addresses not covered by rules 1 and 2 are considered
         UNCONFIRMED and are subject to probing for verification.
   ******************************************************************
   In  this  case  since  the  INIT-ACK  is received from an un-confirmed
   address, should
   it be accepted or not..?
   Thanks
   Bhanuprakash.
   Brian F. G. Bidulock wrote:

Padmalochan,

Padmalochan Moharana wrote:         (Tue, 26 Sep 2006 00:17:42)
  

Hi Brian

please suggest for the following doubt.

Should endoint (in case of Multi-homed), encode COOKIE
ECHO on receive the INIT_ACK from a different
destination IP of the INIT or it should  ignores the
INIT_ACK.
    

If the INIT_ACK corresponds to an INIT that was sent (addresses
in the address list, verification tag, parameters and a cookie),
send the COOKIE ECHO.

Why would you think otherwise?

--brian

  
    

  

--------------050505030102040701050407-- --===============0424498589== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0424498589==-- From sigtran-bounces@ietf.org Tue Sep 26 06:56:19 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSAbV-0007EU-5H; Tue, 26 Sep 2006 06:55:57 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSAZY-0006Ok-Se for sigtran@ietf.org; Tue, 26 Sep 2006 06:53:56 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GSAPd-00025C-5U for sigtran@ietf.org; Tue, 26 Sep 2006 06:43:42 -0400 Received: from ns.pigworks.openss7.net (IDENT:K5kwoj8rgU/LZhvem+ZJRQVD0lf5XaDw@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8QAheD23825; Tue, 26 Sep 2006 04:43:40 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8QAhdp14936; Tue, 26 Sep 2006 04:43:39 -0600 Date: Tue, 26 Sep 2006 04:43:39 -0600 From: "Brian F. G. Bidulock" To: Bhanu Prakash Subject: Re: [Sigtran] Re: regarding INIT ACK from different destination IP. Message-ID: <20060926044339.A14810@openss7.org> Mail-Followup-To: Bhanu Prakash , Padmalochan Moharana , sigtran References: <20060926071743.64366.qmail@web56704.mail.re3.yahoo.com> <20060926012709.A10068@openss7.org> <4518DAD3.2010300@axes-mach01.usa.alcatel.com> <20060926020151.A10692@openss7.org> <4518E91B.7020609@axes-mach01.usa.alcatel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <4518E91B.7020609@axes-mach01.usa.alcatel.com>; from bhanup@axes-mach01.usa.alcatel.com on Tue, Sep 26, 2006 at 02:17:23PM +0530 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.2 (/) X-Scan-Signature: 50a516d93fd399dc60588708fd9a3002 Cc: Padmalochan Moharana , sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Bhanu, All addresses provided by the user to the INIT are considered confirmed. Therefore, the receiver of the INIT-ACK is welcomed to send a COOKIE-ECHO to one of the addresses provided by the user for which the INIT was launched. It does not matter what destination address was in the INIT-ACK. I think that you miss the point. The INIT-ACK MUST be sent to the source address of the INIT. But the receiver of the INIT-ACK may ignore the destination address in the message. --brian Bhanu Prakash wrote: (Tue, 26 Sep 2006 14:17:23) > > Brian, > In the same section please see the following explanation: > *********************** > An endpoint MUST NOT send any chunks to an UNCONFIRMED address, > with > the following exceptions: > - A HEARTBEAT including a nonce MAY be sent to an UNCONFIRMED > address. > - A HEARTBEAT-ACK MAY be sent to an UNCONFIRMED address. > - A COOKIE-ACK MAY be sent to an UNCONFIRMED address, but it MUST > be > bundled with a HEARTBEAT including a nonce. An implementation > that > does NOT support bundling MUST NOT send a COOKIE-ACK to an > UNCONFIRMED address. > - A COOKE-ECHO MAY be sent to an UNCONFIRMED address, but it MUST > be > bundled with a HEARTBEAT including a nonce, and the packet MUST > NOT > exceed the path MTU. If the implementation does NOT support > bundling or if the bundled COOKIE-ECHO plus HEARTBEAT (including > nonce) would exceed the path MTU, then the implementation MUST > NOT > send a COOKIE-ECHO to an UNCONFIRMED address. > ************************ > Thanks, > Bhanuprakash. > Brian F. G. Bidulock wrote: > -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Wed Sep 27 02:30:25 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSSvf-0005Pc-5h; Wed, 27 Sep 2006 02:29:59 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSSvd-0005PW-SM for sigtran@ietf.org; Wed, 27 Sep 2006 02:29:57 -0400 Received: from web56702.mail.re3.yahoo.com ([66.196.97.61]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GSSva-0001X0-9H for sigtran@ietf.org; Wed, 27 Sep 2006 02:29:57 -0400 Received: (qmail 43388 invoked by uid 60001); 27 Sep 2006 06:29:49 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=Mrpmeo8J4KJ5PtzG23aqRsIzq6rhmn1Y5H2LqdG/Q64lcUTjb6//fo/wr7bu26A0mqIIEEh5/HOPUXhTefzTSjDeFrOZrcoM2gSYN64Y1eNwTGcZ5bJQdBdQ+gJbYtFjv2WHhq1Gba3EKwcMfJy1voWlFm4fqioQFkM4i36Frtw= ; Message-ID: <20060927062949.43386.qmail@web56702.mail.re3.yahoo.com> Received: from [220.227.132.114] by web56702.mail.re3.yahoo.com via HTTP; Tue, 26 Sep 2006 23:29:48 PDT Date: Tue, 26 Sep 2006 23:29:48 -0700 (PDT) From: Padmalochan Moharana To: sigtran , bidulock MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: 1ac7cc0a4cd376402b85bc1961a86ac2 Cc: Subject: [Sigtran] Reserved SI value in REG REQ message. X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi Brian, When server receive RES REQ message with SI value 1, what should be the response to the message in M3UA, As SI value 0-2 is reserverd in M3UA. Regards Padmalochan __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Wed Sep 27 03:02:52 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSTRF-0006gM-Db; Wed, 27 Sep 2006 03:02:37 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSTRE-0006gG-Ar for sigtran@ietf.org; Wed, 27 Sep 2006 03:02:36 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GSTRC-00052c-UD for sigtran@ietf.org; Wed, 27 Sep 2006 03:02:36 -0400 Received: from ns.pigworks.openss7.net (IDENT:UbG0YE3yiKD+cwewPPrKTKEGEWYGL2qi@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8R72TD18900; Wed, 27 Sep 2006 01:02:29 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8R72TE03512; Wed, 27 Sep 2006 01:02:29 -0600 Date: Wed, 27 Sep 2006 01:02:29 -0600 From: "Brian F. G. Bidulock" To: Padmalochan Moharana Message-ID: <20060927010229.A3068@openss7.org> Mail-Followup-To: Padmalochan Moharana , sigtran References: <20060927062949.43386.qmail@web56702.mail.re3.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060927062949.43386.qmail@web56702.mail.re3.yahoo.com>; from moharana_p@yahoo.com on Tue, Sep 26, 2006 at 11:29:48PM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 7baded97d9887f7a0c7e8a33c2e3ea1b Cc: sigtran Subject: [Sigtran] Re: Reserved SI value in REG REQ message. X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Padmalochan, The SI value 2 is not reserved. What do you return for any other invalid or unsupportable routing key in a registration request? Some possibilities: 1 Error - Unknown 4 Error - Invalid Routing Key 5 Error - Permission Denied 6 Error - Cannot Support Unique Routing 7 Error - Routing Key not Currently Provisioned 8 Error - Insufficient Resources Just about any REG RSP error is adequate. --brian Padmalochan Moharana wrote: (Tue, 26 Sep 2006 23:29:48) > Hi Brian, > > When server receive RES REQ message with SI value 1, > what should be the response to the message in M3UA, As > SI value 0-2 is reserverd in M3UA. > > Regards > Padmalochan > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Wed Sep 27 03:13:06 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSTbF-0004FS-B2; Wed, 27 Sep 2006 03:12:57 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSTbD-0004FN-2T for sigtran@ietf.org; Wed, 27 Sep 2006 03:12:55 -0400 Received: from web56707.mail.re3.yahoo.com ([66.196.97.66]) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1GSTbB-00069Y-Mu for sigtran@ietf.org; Wed, 27 Sep 2006 03:12:54 -0400 Received: (qmail 63609 invoked by uid 60001); 27 Sep 2006 07:12:53 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=yvThj2m0jM4JcU1bPveCte7RbBaaiFyn9b8fILreMYRt4z8rUjraaj4OK+R7zh+zECABv588Dpz/ekswjd9VwbbLvyFlGZqcPy1zYY/pRzm6u2E7LDGWXHicBiA6MwQ8jM9GYmSp+foQEFAC73l1dz53PPi/lopQ5h4sLlQvZCg= ; Message-ID: <20060927071253.63607.qmail@web56707.mail.re3.yahoo.com> Received: from [220.227.132.114] by web56707.mail.re3.yahoo.com via HTTP; Wed, 27 Sep 2006 00:12:53 PDT Date: Wed, 27 Sep 2006 00:12:53 -0700 (PDT) From: Padmalochan Moharana To: bidulock@openss7.org, sigtran In-Reply-To: <20060927010229.A3068@openss7.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: 0.0 (/) X-Scan-Signature: 00e94c813bef7832af255170dca19e36 Cc: Subject: [Sigtran] Re: Reserved SI value in REG REQ message. X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi brian , As per the RFC3332 section 3.4.5 0 to 2 Reserved 3 SCCP 4 TUP 5 ISUP 6 to 8 Reserved 9 Broadband ISUP 10 Satellite ISUP 11 Reserved 12 AAL type 2 Signalling 13 Bearer Independent Call Control (BICC) 14 Gateway Control Protocol 15 Reserved Then what should be the error code on receive REG REQ with reserverd SI value. Br, --- "Brian F. G. Bidulock" wrote: > Padmalochan, > > The SI value 2 is not reserved. > > What do you return for any other invalid or > unsupportable > routing key in a registration request? > > Some possibilities: > > 1 Error - Unknown > 4 Error - Invalid Routing Key > 5 Error - Permission Denied > 6 Error - Cannot Support Unique Routing > 7 Error - Routing Key not Currently Provisioned > 8 Error - Insufficient Resources > > Just about any REG RSP error is adequate. > > --brian > > Padmalochan Moharana wrote: (Tue, 26 Sep > 2006 23:29:48) > > Hi Brian, > > > > When server receive RES REQ message with SI value > 1, > > what should be the response to the message in > M3UA, As > > SI value 0-2 is reserverd in M3UA. > > > > Regards > > Padmalochan > > > > > > __________________________________________________ > > Do You Yahoo!? > > Tired of spam? Yahoo! Mail has the best spam > protection around > > http://mail.yahoo.com > > -- > Brian F. G. Bidulock > bidulock@openss7.org > http://www.openss7.org/ > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Wed Sep 27 03:13:17 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSTbZ-0004H7-Lq; Wed, 27 Sep 2006 03:13:17 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSTbW-0004Gw-PP for sigtran@ietf.org; Wed, 27 Sep 2006 03:13:14 -0400 Received: from wx-out-0506.google.com ([66.249.82.225]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GSTbV-0006DX-GS for sigtran@ietf.org; Wed, 27 Sep 2006 03:13:14 -0400 Received: by wx-out-0506.google.com with SMTP id t4so119420wxc for ; Wed, 27 Sep 2006 00:13:13 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=LD33m5AXzzSLtIfGQo8xG+iI5A716SIa/XTBR03OgVG0kRpQk10BThZv0nutuy5fcdiOnPt9nEr6bff7gxw91zdm6mgOYoyuBOm+yQhSH688Ld2/ykuexawms57Gp38LL8pVly0FC8fZXpIEdTCtoa3vC9wBrNcUe1no77yKxkE= Received: by 10.90.105.20 with SMTP id d20mr77551agc; Wed, 27 Sep 2006 00:13:13 -0700 (PDT) Received: by 10.90.65.2 with HTTP; Wed, 27 Sep 2006 00:13:13 -0700 (PDT) Message-ID: Date: Wed, 27 Sep 2006 12:43:13 +0530 From: "Ambika Tripathy" To: bidulock Subject: Re: [Sigtran] Reserved SI value in REG REQ message. In-Reply-To: <20060927062949.43386.qmail@web56702.mail.re3.yahoo.com> MIME-Version: 1.0 References: <20060927062949.43386.qmail@web56702.mail.re3.yahoo.com> X-Spam-Score: 0.1 (/) X-Scan-Signature: 32b73d73e8047ed17386f9799119ce43 Cc: sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0492931660==" Errors-To: sigtran-bounces@ietf.org --===============0492931660== Content-Type: multipart/alternative; boundary="----=_Part_5593_30388811.1159341193077" ------=_Part_5593_30388811.1159341193077 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi Brain Below is my configuration of OPC and DEPC for ASP end. OPC = 1.2.3 DPC = 2.3.4 what should be the value of Destination Point Code parameter for RK in REg REQ message? RFC -3332 section3.6.1 tells " Destination Point Code: The Destination Point Code parameter is mandatory, and identifies the Destination Point Code of incoming SS7 traffic for which the ASP is registering. The format is the same as described for the Affected Destination parameter in the DUNA message (See Section 3.4.1). Its format is: " Then the DPC value should be == 1.2.3 if i m not wrong. Please clear my doubt. -- Br, Ambika Prasad Tripathy Nethawk Networks Cell: +91-94375 47730 On 9/27/06, Padmalochan Moharana wrote: > > Hi Brian, > > When server receive RES REQ message with SI value 1, > what should be the response to the message in M3UA, As > SI value 0-2 is reserverd in M3UA. > > Regards > Padmalochan > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > _______________________________________________ > Sigtran mailing list > Sigtran@ietf.org > https://www1.ietf.org/mailman/listinfo/sigtran > ------=_Part_5593_30388811.1159341193077 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline
Hi Brain
 
    Below is my configuration of OPC and DEPC for ASP end.
 
OPC = 1.2.3
DPC = 2.3.4
 
what should be the value of Destination Point Code parameter for RK in REg REQ message?
 
RFC -3332 section3.6.1 tells
"
Destination Point Code:

      The Destination Point Code parameter is mandatory, and identifies
      the Destination Point Code of incoming SS7 traffic for which the
      ASP is registering.  The format is the same as described for the
      Affected Destination parameter in the DUNA message (See Section
      3.4.1).  Its format is:
 
"
Then the DPC value should be == 1.2.3 if i m not wrong.
 
Please clear my doubt.
 
--
Br,
Ambika Prasad Tripathy
Nethawk Networks
Cell: +91-94375 47730

 
On 9/27/06, Padmalochan Moharana <moharana_p@yahoo.com> wrote:
Hi Brian,

When server receive RES REQ message with SI value 1,
what should be the response to the message in M3UA, As
SI value 0-2 is reserverd in M3UA.

Regards
Padmalochan


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around
http://mail.yahoo.com

_______________________________________________
Sigtran mailing list
Sigtran@ietf.org
https://www1.ietf.org/mailman/listinfo/sigtran



------=_Part_5593_30388811.1159341193077-- --===============0492931660== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran --===============0492931660==-- From sigtran-bounces@ietf.org Wed Sep 27 03:20:44 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSTiV-0000AR-CH; Wed, 27 Sep 2006 03:20:27 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSTiU-000094-4c for sigtran@ietf.org; Wed, 27 Sep 2006 03:20:26 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GSTiR-0007DT-NM for sigtran@ietf.org; Wed, 27 Sep 2006 03:20:26 -0400 Received: from ns.pigworks.openss7.net (IDENT:gq/4K2Eqa1tQ0FJUr/XcqCme8C8GCjoV@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8R7KND19476; Wed, 27 Sep 2006 01:20:23 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8R7KMq03838; Wed, 27 Sep 2006 01:20:22 -0600 Date: Wed, 27 Sep 2006 01:20:22 -0600 From: "Brian F. G. Bidulock" To: Padmalochan Moharana Message-ID: <20060927012022.B3068@openss7.org> Mail-Followup-To: Padmalochan Moharana , sigtran References: <20060927010229.A3068@openss7.org> <20060927071253.63607.qmail@web56707.mail.re3.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20060927071253.63607.qmail@web56707.mail.re3.yahoo.com>; from moharana_p@yahoo.com on Wed, Sep 27, 2006 at 12:12:53AM -0700 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: a2c12dacc0736f14d6b540e805505a86 Cc: sigtran Subject: [Sigtran] Re: Reserved SI value in REG REQ message. X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Padmalochan, The IETF does not assign SI values. ITU-T, ETSI and ANSI permit the assignment of any SI values within an administration. 2 is not reserved, it is spare. 0 and 1 are not reserverd, they are assigned to SNMM and SNTM. I could go on. Read the applicable SS7 standards. As regards the error codes, did you not read what I wrote? --brian Padmalochan Moharana wrote: (Wed, 27 Sep 2006 00:12:53) > Hi brian , > > As per the RFC3332 section 3.4.5 > 0 to 2 Reserved > 3 SCCP > 4 TUP > 5 ISUP > 6 to 8 Reserved > 9 Broadband ISUP > 10 Satellite ISUP > 11 Reserved > 12 AAL type 2 Signalling > 13 Bearer Independent Call Control > (BICC) > 14 Gateway Control Protocol > 15 Reserved > > Then what should be the error code on receive REG REQ > with reserverd SI value. > > Br, > --- "Brian F. G. Bidulock" > wrote: > > > Padmalochan, > > > > The SI value 2 is not reserved. > > > > What do you return for any other invalid or > > unsupportable > > routing key in a registration request? > > > > Some possibilities: > > > > 1 Error - Unknown > > 4 Error - Invalid Routing Key > > 5 Error - Permission Denied > > 6 Error - Cannot Support Unique Routing > > 7 Error - Routing Key not Currently Provisioned > > 8 Error - Insufficient Resources > > > > Just about any REG RSP error is adequate. > > > > --brian > > > > Padmalochan Moharana wrote: (Tue, 26 Sep > > 2006 23:29:48) > > > Hi Brian, > > > > > > When server receive RES REQ message with SI value > > 1, > > > what should be the response to the message in > > M3UA, As > > > SI value 0-2 is reserverd in M3UA. > > > > > > Regards > > > Padmalochan > > > > > > > > > __________________________________________________ > > > Do You Yahoo!? > > > Tired of spam? Yahoo! Mail has the best spam > > protection around > > > http://mail.yahoo.com > > > > -- > > Brian F. G. Bidulock > > bidulock@openss7.org > > http://www.openss7.org/ > > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Wed Sep 27 03:21:38 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSTje-0000rI-CE; Wed, 27 Sep 2006 03:21:38 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GSTjc-0000rD-Q1 for sigtran@ietf.org; Wed, 27 Sep 2006 03:21:36 -0400 Received: from gw.openss7.com ([142.179.199.224]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GSTjb-0007G3-E1 for sigtran@ietf.org; Wed, 27 Sep 2006 03:21:36 -0400 Received: from ns.pigworks.openss7.net (IDENT:jK8h4TEsmdGVwbNlAGOJ0w5xdJ6pM5og@ns1.evil.openss7.net [192.168.9.1]) by gw.openss7.com (8.11.6/8.11.6) with ESMTP id k8R7LXD19505; Wed, 27 Sep 2006 01:21:33 -0600 Received: (from brian@localhost) by ns.pigworks.openss7.net (8.11.6/8.11.6) id k8R7LWe03880; Wed, 27 Sep 2006 01:21:32 -0600 Date: Wed, 27 Sep 2006 01:21:32 -0600 From: "Brian F. G. Bidulock" To: Ambika Tripathy Subject: Re: [Sigtran] Reserved SI value in REG REQ message. Message-ID: <20060927012132.C3068@openss7.org> Mail-Followup-To: Ambika Tripathy , sigtran References: <20060927062949.43386.qmail@web56702.mail.re3.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from ambika.tripathy@gmail.com on Wed, Sep 27, 2006 at 12:43:13PM +0530 Organization: http://www.openss7.org/ Dsn-Notification-To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 7bac9cb154eb5790ae3b2913587a40de Cc: sigtran X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: bidulock@openss7.org List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Ambika, 1.2.3. --brian -- Brian F. G. Bidulock bidulock@openss7.org http://www.openss7.org/ _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 29 11:16:00 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTK5T-0005bS-Na; Fri, 29 Sep 2006 11:15:39 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTK5S-0005bH-TW for sigtran@ietf.org; Fri, 29 Sep 2006 11:15:38 -0400 Received: from us-wkf-fwmain.comverse.com ([63.64.185.250] helo=us-wkf-interscan1.comverse.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GTK5R-0002ww-M7 for sigtran@ietf.org; Fri, 29 Sep 2006 11:15:38 -0400 Received: from us-nj-mail1.comverse.com (localhost.localdomain [127.0.0.1]) by us-wkf-interscan1.comverse.com (8.13.1/8.13.1) with ESMTP id k8TFFZda009311 for ; Fri, 29 Sep 2006 11:15:36 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Date: Fri, 29 Sep 2006 11:15:34 -0400 Message-ID: <849535E338E99741B7F7413F73253EDB04D21099@us-nj-mail1.comverse.com> In-Reply-To: <849535E338E99741B7F7413F73253EDB04D21032@us-nj-mail1.comverse.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: SUA implementor's guide thread-index: Acbj0Id9wvYjgwzoS4abZ3fEZjOn7QABaUIgAAAwE4A= From: "Haresign Lincoln" To: X-Spam-Score: 0.0 (/) X-Scan-Signature: 7bac9cb154eb5790ae3b2913587a40de Subject: [Sigtran] SUA implementor's guide X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Just out of curiosity, what happened to the SUA implementer's guide?=20 Was there any intention to update the SUA RFC in a similar manner as was done to the M3UA RFC?=20 Regards, Lincoln=20 _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 29 11:28:13 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTKHF-0001jn-Rf; Fri, 29 Sep 2006 11:27:49 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTKHF-0001jZ-A2 for sigtran@ietf.org; Fri, 29 Sep 2006 11:27:49 -0400 Received: from phl-28-b-170.phl.dsl.cerfnet.com ([63.242.157.170]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GTKHD-0005TL-QV for sigtran@ietf.org; Fri, 29 Sep 2006 11:27:49 -0400 Received: from bn001320 (bn001320 [192.168.1.61]) by phl-28-b-170.phl.dsl.cerfnet.com (8.12.8/8.12.8) with SMTP id k8TFRltc029663 for ; Fri, 29 Sep 2006 11:27:47 -0400 From: "Barry Nagelberg" To: Subject: RE: [Sigtran] SUA implementor's guide Date: Fri, 29 Sep 2006 11:30:19 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) In-Reply-To: <849535E338E99741B7F7413F73253EDB04D21099@us-nj-mail1.comverse.com> X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4910.0300 Importance: Normal X-Spam-Score: 1.5 (+) X-Scan-Signature: e1e48a527f609d1be2bc8d8a70eb76cb X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Lincoln, It has apparently expired and been deleted. It was issued on March 6. Signalling Transport Working group L. Coene Internet-Draft Siemens Expires: September 7, 2006 J. Loughney Nokia March 6, 2006 SUA Implementor's guide Barry Nagelberg Adax, Inc. -----Original Message----- From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] Sent: Friday, September 29, 2006 11:16 AM To: sigtran@ietf.org Subject: [Sigtran] SUA implementor's guide Just out of curiosity, what happened to the SUA implementer's guide? Was there any intention to update the SUA RFC in a similar manner as was done to the M3UA RFC? Regards, Lincoln _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 29 11:46:59 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTKZT-0007ip-DK; Fri, 29 Sep 2006 11:46:39 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTKZR-0007gp-Eq for sigtran@ietf.org; Fri, 29 Sep 2006 11:46:37 -0400 Received: from hicks.ciena.com ([63.118.34.22]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GTKZP-00089Y-76 for sigtran@ietf.org; Fri, 29 Sep 2006 11:46:37 -0400 Received: from lin1-118-39-27.ciena.com (HELO mdmxm02.ciena.com) ([63.118.39.27]) by hicks.ciena.com with ESMTP; 29 Sep 2006 11:46:08 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [Sigtran] SUA implementor's guide Date: Fri, 29 Sep 2006 11:46:06 -0400 Message-ID: <0901D1988E815341A0103206A834DA070109913C@mdmxm02.ciena.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] SUA implementor's guide Thread-Index: Acbj3NRZcM0Cp9xdQFSS+1TrIC0AUgAAXXDA From: "Ong, Lyndon" To: "Barry Nagelberg" , X-Spam-Score: 0.0 (/) X-Scan-Signature: 02ec665d00de228c50c93ed6b5e4fc1a Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi Guys, I suspect that Loede and John have been too busy to keep this updated. Is there still interest in this? Cheers, Lyndon=20 -----Original Message----- From: Barry Nagelberg [mailto:barryn@adax.com]=20 Sent: Friday, September 29, 2006 8:30 AM To: sigtran@ietf.org Subject: RE: [Sigtran] SUA implementor's guide Lincoln, It has apparently expired and been deleted. It was issued on March 6. Signalling Transport Working group L. Coene Internet-Draft Siemens Expires: September 7, 2006 J. Loughney Nokia March 6, 2006 SUA Implementor's guide Barry Nagelberg Adax, Inc. -----Original Message----- From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] Sent: Friday, September 29, 2006 11:16 AM To: sigtran@ietf.org Subject: [Sigtran] SUA implementor's guide Just out of curiosity, what happened to the SUA implementer's guide?=20 Was there any intention to update the SUA RFC in a similar manner as was done to the M3UA RFC?=20 Regards, Lincoln=20 _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 29 11:52:25 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTKeR-0002Cl-VV; Fri, 29 Sep 2006 11:51:47 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTKeQ-0002BY-No for sigtran@ietf.org; Fri, 29 Sep 2006 11:51:46 -0400 Received: from us-wkf-fwmain.comverse.com ([63.64.185.250] helo=us-wkf-interscan1.comverse.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GTKeP-00009h-FN for sigtran@ietf.org; Fri, 29 Sep 2006 11:51:46 -0400 Received: from us-nj-mail1.comverse.com (localhost.localdomain [127.0.0.1]) by us-wkf-interscan1.comverse.com (8.13.1/8.13.1) with ESMTP id k8TFpeGt011023; Fri, 29 Sep 2006 11:51:41 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [Sigtran] SUA implementor's guide Date: Fri, 29 Sep 2006 11:51:39 -0400 Message-ID: <849535E338E99741B7F7413F73253EDB04D21128@us-nj-mail1.comverse.com> In-Reply-To: <0901D1988E815341A0103206A834DA070109913C@mdmxm02.ciena.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] SUA implementor's guide thread-index: Acbj3NRZcM0Cp9xdQFSS+1TrIC0AUgAAXXDAAAAsMBA= From: "Haresign Lincoln" To: "Ong, Lyndon" , "Barry Nagelberg" , X-Spam-Score: 0.0 (/) X-Scan-Signature: cd26b070c2577ac175cd3a6d878c6248 Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org I'm interested....there were a number of improvements/clarifications in the implementors guide. If there's anything I can do to help keep this up or move it along to RFC, let me know. Regards, Lincoln=20 -----Original Message----- From: Ong, Lyndon [mailto:Lyong@Ciena.com]=20 Sent: Friday, September 29, 2006 11:46 AM To: Barry Nagelberg; sigtran@ietf.org Subject: RE: [Sigtran] SUA implementor's guide Hi Guys, I suspect that Loede and John have been too busy to keep this updated. Is there still interest in this? Cheers, Lyndon=20 -----Original Message----- From: Barry Nagelberg [mailto:barryn@adax.com] Sent: Friday, September 29, 2006 8:30 AM To: sigtran@ietf.org Subject: RE: [Sigtran] SUA implementor's guide Lincoln, It has apparently expired and been deleted. It was issued on March 6. Signalling Transport Working group L. Coene Internet-Draft Siemens Expires: September 7, 2006 J. Loughney Nokia March 6, 2006 SUA Implementor's guide Barry Nagelberg Adax, Inc. -----Original Message----- From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] Sent: Friday, September 29, 2006 11:16 AM To: sigtran@ietf.org Subject: [Sigtran] SUA implementor's guide Just out of curiosity, what happened to the SUA implementer's guide?=20 Was there any intention to update the SUA RFC in a similar manner as was done to the M3UA RFC?=20 Regards, Lincoln=20 _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 29 12:35:56 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTLKf-0005iz-2K; Fri, 29 Sep 2006 12:35:25 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTLKd-0005cs-EB for sigtran@ietf.org; Fri, 29 Sep 2006 12:35:23 -0400 Received: from mgw-ext11.nokia.com ([131.228.20.170]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GTL63-0003ac-Uo for sigtran@ietf.org; Fri, 29 Sep 2006 12:20:21 -0400 Received: from esebh106.NOE.Nokia.com (esebh106.ntc.nokia.com [172.21.138.213]) by mgw-ext11.nokia.com (Switch-3.1.10/Switch-3.1.10) with ESMTP id k8TGK8sK005492; Fri, 29 Sep 2006 19:20:09 +0300 Received: from esebh102.NOE.Nokia.com ([172.21.138.183]) by esebh106.NOE.Nokia.com with Microsoft SMTPSVC(6.0.3790.1830); Fri, 29 Sep 2006 19:20:08 +0300 Received: from esebe199.NOE.Nokia.com ([172.21.138.143]) by esebh102.NOE.Nokia.com with Microsoft SMTPSVC(6.0.3790.1830); Fri, 29 Sep 2006 19:20:08 +0300 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Subject: RE: [Sigtran] SUA implementor's guide Date: Fri, 29 Sep 2006 19:20:07 +0300 Message-ID: In-Reply-To: <849535E338E99741B7F7413F73253EDB04D21128@us-nj-mail1.comverse.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] SUA implementor's guide Thread-Index: Acbj3NRZcM0Cp9xdQFSS+1TrIC0AUgAAXXDAAAAsMBAAAQQTgA== From: To: , , , X-OriginalArrivalTime: 29 Sep 2006 16:20:08.0658 (UTC) FILETIME=[218C9320:01C6E3E3] X-Spam-Score: 0.2 (/) X-Scan-Signature: 944ecb6e61f753561f559a497458fb4f Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org Hi all, Lode has the pen at the moment, but if people can read and comment on the current draft, maybe we can see if there is consensus enough to close off the remaining issues and then go for WGLC. John=20 >-----Original Message----- >From: ext Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com]=20 >Sent: 29 September, 2006 18:52 >To: Ong, Lyndon; Barry Nagelberg; sigtran@ietf.org >Subject: RE: [Sigtran] SUA implementor's guide > >I'm interested....there were a number of=20 >improvements/clarifications in the implementors guide. If=20 >there's anything I can do to help keep this up or move it=20 >along to RFC, let me know. > >Regards, >Lincoln=20 > >-----Original Message----- >From: Ong, Lyndon [mailto:Lyong@Ciena.com] >Sent: Friday, September 29, 2006 11:46 AM >To: Barry Nagelberg; sigtran@ietf.org >Subject: RE: [Sigtran] SUA implementor's guide > >Hi Guys, > >I suspect that Loede and John have been too busy to keep this updated. >Is there still interest in this? > >Cheers, > >Lyndon=20 > >-----Original Message----- >From: Barry Nagelberg [mailto:barryn@adax.com] >Sent: Friday, September 29, 2006 8:30 AM >To: sigtran@ietf.org >Subject: RE: [Sigtran] SUA implementor's guide > >Lincoln, > >It has apparently expired and been deleted. It was issued on March 6. > > >Signalling Transport Working group =20 > L. Coene >Internet-Draft =20 > Siemens >Expires: September 7, 2006 =20 >J. Loughney > =20 > Nokia > =20 >March 6, 2006 > > > SUA Implementor's guide > > > >Barry Nagelberg >Adax, Inc. > >-----Original Message----- >From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] >Sent: Friday, September 29, 2006 11:16 AM >To: sigtran@ietf.org >Subject: [Sigtran] SUA implementor's guide > > > >Just out of curiosity, what happened to the SUA implementer's guide?=20 > >Was there any intention to update the SUA RFC in a similar=20 >manner as was done to the M3UA RFC?=20 > >Regards, >Lincoln=20 > > > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran From sigtran-bounces@ietf.org Fri Sep 29 13:57:06 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTMau-0001yI-MP; Fri, 29 Sep 2006 13:56:16 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1GTMat-0001yA-3N for sigtran@ietf.org; Fri, 29 Sep 2006 13:56:15 -0400 Received: from us-wkf-fwmain.comverse.com ([63.64.185.250] helo=us-wkf-interscan1.comverse.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1GTMaq-0003Ym-P4 for sigtran@ietf.org; Fri, 29 Sep 2006 13:56:15 -0400 Received: from us-nj-mail1.comverse.com (localhost.localdomain [127.0.0.1]) by us-wkf-interscan1.comverse.com (8.13.1/8.13.1) with ESMTP id k8THu4PO017067; Fri, 29 Sep 2006 13:56:05 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [Sigtran] SUA implementor's guide Date: Fri, 29 Sep 2006 13:56:03 -0400 Message-ID: <849535E338E99741B7F7413F73253EDB04D21282@us-nj-mail1.comverse.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Sigtran] SUA implementor's guide thread-index: Acbj3NRZcM0Cp9xdQFSS+1TrIC0AUgAAXXDAAAAsMBAAAQQTgAADUpEw From: "Haresign Lincoln" To: , , , X-Spam-Score: 0.0 (/) X-Scan-Signature: 3a4bc66230659131057bb68ed51598f8 Cc: X-BeenThere: sigtran@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Signaling Transport List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: sigtran-bounces@ietf.org OK, I assume you are referring to the implementor's guide version 3 that just expired Sept 7. I'll review and provide my feedback. Regards, Lincoln=20 -----Original Message----- From: john.loughney@nokia.com [mailto:john.loughney@nokia.com]=20 Sent: Friday, September 29, 2006 12:20 PM To: Haresign Lincoln; Lyong@Ciena.com; barryn@adax.com; sigtran@ietf.org Subject: RE: [Sigtran] SUA implementor's guide Hi all, Lode has the pen at the moment, but if people can read and comment on the current draft, maybe we can see if there is consensus enough to close off the remaining issues and then go for WGLC. John=20 >-----Original Message----- >From: ext Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] >Sent: 29 September, 2006 18:52 >To: Ong, Lyndon; Barry Nagelberg; sigtran@ietf.org >Subject: RE: [Sigtran] SUA implementor's guide > >I'm interested....there were a number of improvements/clarifications in >the implementors guide. If there's anything I can do to help keep this >up or move it along to RFC, let me know. > >Regards, >Lincoln > >-----Original Message----- >From: Ong, Lyndon [mailto:Lyong@Ciena.com] >Sent: Friday, September 29, 2006 11:46 AM >To: Barry Nagelberg; sigtran@ietf.org >Subject: RE: [Sigtran] SUA implementor's guide > >Hi Guys, > >I suspect that Loede and John have been too busy to keep this updated. >Is there still interest in this? > >Cheers, > >Lyndon > >-----Original Message----- >From: Barry Nagelberg [mailto:barryn@adax.com] >Sent: Friday, September 29, 2006 8:30 AM >To: sigtran@ietf.org >Subject: RE: [Sigtran] SUA implementor's guide > >Lincoln, > >It has apparently expired and been deleted. It was issued on March 6. > > >Signalling Transport Working group =20 > L. Coene >Internet-Draft =20 > Siemens >Expires: September 7, 2006 =20 >J. Loughney > =20 > Nokia > =20 >March 6, 2006 > > > SUA Implementor's guide > > > >Barry Nagelberg >Adax, Inc. > >-----Original Message----- >From: Haresign Lincoln [mailto:Lincoln.Haresign@comverse.com] >Sent: Friday, September 29, 2006 11:16 AM >To: sigtran@ietf.org >Subject: [Sigtran] SUA implementor's guide > > > >Just out of curiosity, what happened to the SUA implementer's guide?=20 > >Was there any intention to update the SUA RFC in a similar manner as=20 >was done to the M3UA RFC? > >Regards, >Lincoln > > > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > >_______________________________________________ >Sigtran mailing list >Sigtran@ietf.org >https://www1.ietf.org/mailman/listinfo/sigtran > _______________________________________________ Sigtran mailing list Sigtran@ietf.org https://www1.ietf.org/mailman/listinfo/sigtran