From ospf-bounces@ietf.org Thu Jun 01 01:21:21 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FlfcE-0007XS-7A; Thu, 01 Jun 2006 01:21:02 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FlfbK-0006od-7z for ospf@ietf.org; Thu, 01 Jun 2006 01:20:06 -0400 Received: from [203.199.83.247] (helo=rediffmail.com) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1FlfPg-0000Jb-O0 for ospf@ietf.org; Thu, 01 Jun 2006 01:08:06 -0400 Received: (qmail 23025 invoked by uid 510); 1 Jun 2006 05:06:27 -0000 Date: 1 Jun 2006 05:06:27 -0000 Message-ID: <20060601050627.23023.qmail@webmail34.rediffmail.com> Received: from unknown (203.126.136.220) by rediffmail.com via HTTP; 01 jun 2006 05:06:27 -0000 MIME-Version: 1.0 From: "Vivek Dubey" To: ospf@ietf.org X-Spam-Score: 1.5 (+) X-Scan-Signature: cab78e1e39c4b328567edb48482b6a69 Subject: [OSPF] ospfv3 mib - draft 10 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Vivek Dubey List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1695146917==" Errors-To: ospf-bounces@ietf.org This is a multipart mime message --===============1695146917== Content-type: multipart/alternative; boundary="Next_1149138387---0-203.199.83.247-23017" This is a multipart mime message --Next_1149138387---0-203.199.83.247-23017 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline In context of Neighbor Tables=0A-----------------------------=0AThe OSPFv2 = Neighbor Table has been split into two tables. The OSPFv3 Neighbor Table is= a read-only table and it contains information learned from Hellos received= from neighbors, including Configured neighbors. =0A=0AThe OSPFv3 Configure= d Neighbor Table contains entries for =0Amanually configured neighbors and = neighbors dynamically discovered by =0Alower-level protocols such as Invers= e Neighbor Discovery.=0A=0A =0Aospfv3CfgNbrRtrId =0Aospfv3CfgNbrStat= e=0AShould we keep these two objects in "OSPFv3 Configured Neighbor Table".= These are discovered/decided during hello exchange and are part of "OSPFv3= Neighbor Table". We can limit CFGD neighbor table to configuration informa= tion only.=0A=0AThanks=0AVivek=0A=0A=0A=0A --Next_1149138387---0-203.199.83.247-23017 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

=0AIn context of Neighbor Tables
=0A-----------------------------
= =0AThe OSPFv2 Neighbor Table has been split into two tables. The OSPFv3 Nei= ghbor Table is a read-only table and it contains information learned from H= ellos received from neighbors, including Configured neighbors.
=0A
= =0AThe OSPFv3 Configured Neighbor Table contains entries for
=0Amanuall= y configured neighbors and neighbors dynamically discovered by
=0Alower= -level protocols such as Inverse Neighbor Discovery.
=0A
=0A<vivek= >
=0Aospfv3CfgNbrRtrId
=0Aospfv3CfgNbrState
=0AShould we keep= these two objects in "OSPFv3 Configured Neighbor Table". These a= re discovered/decided during hello exchange and are part of "OSPFv3 Ne= ighbor Table". We can limit CFGD neighbor table to configuration infor= mation only.
=0A
=0AThanks
=0AVivek
=0A
=0A
=0A
=0A=0A=

=0A

=0A= =0A --Next_1149138387---0-203.199.83.247-23017-- --===============1695146917== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============1695146917==-- From ospf-bounces@ietf.org Thu Jun 01 07:54:45 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FlllA-0000jJ-FG; Thu, 01 Jun 2006 07:54:40 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Flll9-0000jE-I1 for ospf@ietf.org; Thu, 01 Jun 2006 07:54:39 -0400 Received: from motgate3.mot.com ([144.189.100.103]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Flll8-0000vC-68 for ospf@ietf.org; Thu, 01 Jun 2006 07:54:39 -0400 Received: from az33exr04.mot.com (az33exr04.mot.com [10.64.251.234]) by motgate3.mot.com (8.12.11/Motgate3) with ESMTP id k51Bsb78003045 for ; Thu, 1 Jun 2006 04:54:37 -0700 (MST) Received: from ZMY16EXM66.ds.mot.com (zmy16exm66.ap.mot.com [10.179.4.26]) by az33exr04.mot.com (8.13.1/8.13.0) with ESMTP id k51BsZqW028207 for ; Thu, 1 Jun 2006 06:54:36 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Thu, 1 Jun 2006 19:50:16 +0800 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: OSPFv3 MIB: Query on Interface State Thread-Index: AcaFcYyd86RBPot+T/W7bendeS3m5g== From: "Ramana Koppula-G20085" To: X-Brightmail-Tracker: AAAAAQAAAAQ= X-White-List-Member: TRUE X-Spam-Score: 0.0 (/) X-Scan-Signature: cab78e1e39c4b328567edb48482b6a69 Subject: [OSPF] OSPFv3 MIB: Query on Interface State X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1259915386==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============1259915386== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C68572.26B34CCE" This is a multi-part message in MIME format. ------_=_NextPart_001_01C68572.26B34CCE Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, =20 As explicit support is given for Multiple Interface to a single link in OSPFv3, shouldn't the SYNTAX of ospfv3IfState needs to include "Standby" state? =20 thanx ramana ------_=_NextPart_001_01C68572.26B34CCE Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Hi,
 
As = explicit support=20 is given for Multiple Interface to a single link in OSPFv3, shouldn't = the SYNTAX=20 of ospfv3IfState needs to include "Standby" = state?
 
thanx
ramana
------_=_NextPart_001_01C68572.26B34CCE-- --===============1259915386== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============1259915386==-- From ospf-bounces@ietf.org Thu Jun 01 14:14:03 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FlrgF-0006hu-93; Thu, 01 Jun 2006 14:13:59 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FlrgD-0006aA-Ng for ospf@ietf.org; Thu, 01 Jun 2006 14:13:57 -0400 Received: from zcars04f.nortel.com ([47.129.242.57]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FlrgC-00073v-AQ for ospf@ietf.org; Thu, 01 Jun 2006 14:13:57 -0400 Received: from zrtphxm1.corp.nortel.com (zrtphxm1.corp.nortel.com [47.140.202.50]) by zcars04f.nortel.com (Switch-2.2.6/Switch-2.2.0) with ESMTP id k51IDpX15528; Thu, 1 Jun 2006 14:13:51 -0400 (EDT) X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: RE: [OSPF] ospfv3 mib - draft 10 Date: Thu, 1 Jun 2006 14:13:36 -0400 Message-ID: <4B7DAC3FEFD35D4A96BDD0116990501403365F34@zrtphxm1.corp.nortel.com> In-Reply-To: <20060601050627.23023.qmail@webmail34.rediffmail.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [OSPF] ospfv3 mib - draft 10 Thread-Index: AcaFOzMPLJo4Cw6ASxGZe/Hyuy8lBQARsZOA From: "Daniel Joyal" To: "Vivek Dubey" , X-Spam-Score: 0.0 (/) X-Scan-Signature: f49c97ce49302a02285a2d36a99eef8c Cc: X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1913843231==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============1913843231== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C685A7.19956511" This is a multi-part message in MIME format. ------_=_NextPart_001_01C685A7.19956511 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Vivek, =20 Good point. We'll remove those objects in the next revision and strike the text concerning Inverse Neighbor Discovery, unless there are any objections. =20 Thanks. -Dan -----Original Message----- From: Vivek Dubey [mailto:vivek_ospf@rediffmail.com]=20 Sent: Thursday, June 01, 2006 1:06 AM To: ospf@ietf.org Subject: [OSPF] ospfv3 mib - draft 10 =09 =09 In context of Neighbor Tables ----------------------------- The OSPFv2 Neighbor Table has been split into two tables. The OSPFv3 Neighbor Table is a read-only table and it contains information learned from Hellos received from neighbors, including Configured neighbors.=20 =09 The OSPFv3 Configured Neighbor Table contains entries for=20 manually configured neighbors and neighbors dynamically discovered by=20 lower-level protocols such as Inverse Neighbor Discovery. =09 =20 ospfv3CfgNbrRtrId=20 ospfv3CfgNbrState Should we keep these two objects in "OSPFv3 Configured Neighbor Table". These are discovered/decided during hello exchange and are part of "OSPFv3 Neighbor Table". We can limit CFGD neighbor table to configuration information only. =09 Thanks Vivek =09 =09 =09 =09 =09 =20 ------_=_NextPart_001_01C685A7.19956511 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Vivek,
 
 =20 Good point. We'll remove those objects in the next = revision
and=20 strike the text concerning Inverse Neighbor = Discovery,
unless=20 there are any objections.
 
Thanks.
-Dan
-----Original Message-----
From: = Vivek Dubey=20 [mailto:vivek_ospf@rediffmail.com]
Sent: Thursday, June 01, = 2006=20 1:06 AM
To: ospf@ietf.org
Subject: [OSPF] ospfv3 = mib -=20 draft 10

In context of Neighbor = Tables
-----------------------------
The=20 OSPFv2 Neighbor Table has been split into two tables. The OSPFv3 = Neighbor=20 Table is a read-only table and it contains information learned from = Hellos=20 received from neighbors, including Configured neighbors.

The = OSPFv3=20 Configured Neighbor Table contains entries for
manually configured = neighbors and neighbors dynamically discovered by
lower-level = protocols=20 such as Inverse Neighbor Discovery.

<vivek> =
ospfv3CfgNbrRtrId=20
ospfv3CfgNbrState
Should we keep these two objects in "OSPFv3=20 Configured Neighbor Table". These are discovered/decided during hello = exchange=20 and are part of "OSPFv3 Neighbor Table". We can limit CFGD neighbor = table to=20 configuration information=20 only.

Thanks
Vivek





------_=_NextPart_001_01C685A7.19956511-- --===============1913843231== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============1913843231==-- From ospf-bounces@ietf.org Thu Jun 01 14:18:34 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Flrke-0003LF-Op; Thu, 01 Jun 2006 14:18:32 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Flrkd-0003LA-NB for ospf@ietf.org; Thu, 01 Jun 2006 14:18:31 -0400 Received: from zcars04f.nortel.com ([47.129.242.57]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Flrkc-0007GB-Dj for ospf@ietf.org; Thu, 01 Jun 2006 14:18:31 -0400 Received: from zrtphxm1.corp.nortel.com (zrtphxm1.corp.nortel.com [47.140.202.50]) by zcars04f.nortel.com (Switch-2.2.6/Switch-2.2.0) with ESMTP id k51IIRX16650; Thu, 1 Jun 2006 14:18:28 -0400 (EDT) X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: RE: [OSPF] OSPFv3 MIB: Query on Interface State Date: Thu, 1 Jun 2006 14:18:13 -0400 Message-ID: <4B7DAC3FEFD35D4A96BDD0116990501403365F35@zrtphxm1.corp.nortel.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [OSPF] OSPFv3 MIB: Query on Interface State Thread-Index: AcaFcYyd86RBPot+T/W7bendeS3m5gANZVoQ From: "Daniel Joyal" To: "Ramana Koppula-G20085" , X-Spam-Score: 0.0 (/) X-Scan-Signature: b7b9551d71acde901886cc48bfc088a6 Cc: X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0016167099==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============0016167099== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C685A7.BF16C2AF" This is a multi-part message in MIME format. ------_=_NextPart_001_01C685A7.BF16C2AF Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Yes. Given the updates to OSPF for IPv6 and to other supporting IPv6 MIBs, the OSPFv3 draft MIB needs to be refreshed. =20 -Dan=20 -----Original Message----- From: Ramana Koppula-G20085 [mailto:ramanakumar@motorola.com]=20 Sent: Thursday, June 01, 2006 7:50 AM To: ospf@ietf.org Subject: [OSPF] OSPFv3 MIB: Query on Interface State =09 =09 Hi, =20 As explicit support is given for Multiple Interface to a single link in OSPFv3, shouldn't the SYNTAX of ospfv3IfState needs to include "Standby" state? =20 thanx ramana ------_=_NextPart_001_01C685A7.BF16C2AF Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Yes.=20 Given the updates to OSPF for IPv6 and to other = supporting
IPv6=20 MIBs, the OSPFv3 draft MIB needs to be refreshed.
 
-Dan 
-----Original Message-----
From: = Ramana=20 Koppula-G20085 [mailto:ramanakumar@motorola.com]
Sent: = Thursday,=20 June 01, 2006 7:50 AM
To: ospf@ietf.org
Subject: = [OSPF]=20 OSPFv3 MIB: Query on Interface State

Hi,
 
As = explicit=20 support is given for Multiple Interface to a single link in OSPFv3, = shouldn't=20 the SYNTAX of ospfv3IfState needs to include "Standby"=20 state?
 
thanx
ramana
------_=_NextPart_001_01C685A7.BF16C2AF-- --===============0016167099== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============0016167099==-- From ospf-bounces@ietf.org Tue Jun 06 01:46:28 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FnUOM-0006Gh-HI; Tue, 06 Jun 2006 01:46:14 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FnUO7-0005q1-MG for ospf@ietf.org; Tue, 06 Jun 2006 01:45:59 -0400 Received: from [203.199.83.38] (helo=rediffmail.com) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1FnUBL-00066O-Mp for ospf@ietf.org; Tue, 06 Jun 2006 01:32:51 -0400 Received: (qmail 30998 invoked by uid 510); 6 Jun 2006 05:31:07 -0000 Date: 6 Jun 2006 05:31:07 -0000 Message-ID: <20060606053107.30997.qmail@webmail28.rediffmail.com> Received: from unknown (24.23.242.137) by rediffmail.com via HTTP; 06 jun 2006 05:31:07 -0000 MIME-Version: 1.0 From: "badvel vishnu reddy" To: "ospf" X-Spam-Score: 1.4 (+) X-Scan-Signature: 0ddefe323dd869ab027dbfff7eff0465 Subject: [OSPF] Re:Whether to take the global prefixes from the LinkLsa or Intra-area-prefix Lsa X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: badvel vishnu reddy List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0149270433==" Errors-To: ospf-bounces@ietf.org This is a multipart mime message --===============0149270433== Content-type: multipart/alternative; boundary="Next_1149571867---0-203.199.83.38-30977" This is a multipart mime message --Next_1149571867---0-203.199.83.38-30977 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline =A0=0AHi All=0A =0ASuppose if by chance someone configures like this,all r= outers are on the same link.=0A=0A R3(DR) =0A = | 55:55::/64=0A |=0A R1 -------------------= ---------- R2=0A 65:65::/64 75:75::/64=0A=0AEventhough= all the routers are on the same link, still each one is different subnet, = So from R1 to reach prefix 75:75:: we need to specify the next hop as R2's = linklocal addresses. =0A=0ASo in this scenario when the routers are on the = same link should i use link lsa's for the global prefixes as well as next-h= op addresses?=0A=0A or=0AShould i use type-9 ls= a (reference type network) generated by DR and =0Aadd all the prefixes? and= for each corresponding prefix go to the link lsa and get the next hop addr= ess?=0A=0ARegards=0AVishnu=0A --Next_1149571867---0-203.199.83.38-30977 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

=0A 
=0AHi All
=0A
=0ASuppose if by chance someone confi= gures like this,all routers are on the same link.
=0A
=0A   = ;               R3(DR)    &nb= sp;
=0A                  = | 55:55::/64
=0A                =   |
=0A  R1 ----------------------------- R2
=0A  &n= bsp;   65:65::/64              &nbs= p; 75:75::/64
=0A
=0AEventhough all the routers are on the same link= , still each one is different subnet, So from R1 to reach prefix 75:75:: we= need to specify the next hop as R2's linklocal addresses.
=0A
=0ASo= in this scenario when the routers are on the same link should i use link l= sa's for the global prefixes as well as next-hop addresses?
=0A
=0A&n= bsp;                     =       or
=0AShould i use type-9 lsa (reference type netw= ork) generated by DR and
=0Aadd all the prefixes? and for each correspo= nding prefix go to the link lsa and get the next hop address?
=0A
=0A= Regards
=0AVishnu
=0A=0A

=0A

=0A=0A --Next_1149571867---0-203.199.83.38-30977-- --===============0149270433== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============0149270433==-- From ospf-bounces@ietf.org Wed Jun 07 05:20:00 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FnuCg-0000Jv-Nt; Wed, 07 Jun 2006 05:19:54 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FnuCf-0000Jq-TF for ospf@ietf.org; Wed, 07 Jun 2006 05:19:53 -0400 Received: from motgate5.mot.com ([144.189.100.105]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FnuCe-00051f-Hs for ospf@ietf.org; Wed, 07 Jun 2006 05:19:53 -0400 Received: from az33exr03.mot.com (az33exr03.mot.com [10.64.251.233]) by motgate5.mot.com (8.12.11/Motgate5) with ESMTP id k579JnmI007877 for ; Wed, 7 Jun 2006 02:19:49 -0700 (MST) Received: from ZMY16EXM66.ds.mot.com (zmy16exm66.ap.mot.com [10.179.4.26]) by az33exr03.mot.com (8.13.1/8.13.0) with ESMTP id k579Jl7n007099 for ; Wed, 7 Jun 2006 04:19:48 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Wed, 7 Jun 2006 17:19:46 +0800 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: OSPFv3 MIB: InterfaceID in Vlink Thread-Index: AcaKE4SYyZFO/b6RQEuZbN2XPAuRoQ== From: "Ramana Koppula-G20085" To: X-Brightmail-Tracker: AAAAAQAAAAQ= X-White-List-Member: TRUE X-Spam-Score: 0.0 (/) X-Scan-Signature: 41c17b4b16d1eedaa8395c26e9a251c4 Subject: [OSPF] OSPFv3 MIB: InterfaceID in Vlink X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0240240120==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============0240240120== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C68A13.8513DC2B" This is a multi-part message in MIME format. ------_=_NextPart_001_01C68A13.8513DC2B Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable hi, =20 Doubt: When Interface ID for normal interfaces is not made configurable, why is Virtual Link's Interface ID made configurable in Virtual Interface Table? =20 As Virtual Interface's Interface ID need to be unique amongst all the Interface IDs within the router, the administrator had to check what all interface IDs are in use at present and make a selection. All this is not unavoidable. =20 I feel it would be better if we make it read-only object and leave the selection of it to implementation. =20 thanx ramana ------_=_NextPart_001_01C68A13.8513DC2B Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
hi,
 
Doubt: = When=20 Interface ID for normal interfaces is not made configurable, why is = Virtual=20 Link's Interface ID made configurable in Virtual Interface=20 Table?
 
As = Virtual=20 Interface's Interface ID need to be unique amongst all the Interface IDs = within=20 the router, the administrator had to check what all interface IDs are in = use at=20 present and make a selection. All this is not = unavoidable.
 
I feel = it would be=20 better if we make it read-only object and leave the selection of it to=20 implementation.
 
thanx
ramana
------_=_NextPart_001_01C68A13.8513DC2B-- --===============0240240120== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============0240240120==-- From ospf-bounces@ietf.org Wed Jun 07 07:34:44 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FnwIz-0007JI-FP; Wed, 07 Jun 2006 07:34:33 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FnwIy-0007JD-M6 for ospf@ietf.org; Wed, 07 Jun 2006 07:34:32 -0400 Received: from motgate8.mot.com ([129.188.136.8]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FnwIx-0005LV-Dx for ospf@ietf.org; Wed, 07 Jun 2006 07:34:32 -0400 Received: from il06exr03.mot.com (il06exr03.mot.com [129.188.137.133]) by motgate8.mot.com (8.12.11/Motgate7) with ESMTP id k57BYUX8025685 for ; Wed, 7 Jun 2006 04:34:30 -0700 (MST) Received: from ZMY16EXM66.ds.mot.com (zmy16exm66.ap.mot.com [10.179.4.26]) by il06exr03.mot.com (8.13.1/8.13.0) with ESMTP id k57BYT4M007074 for ; Wed, 7 Jun 2006 06:34:30 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: [OSPF] OSPFv3: Vlink Instance Id Date: Wed, 7 Jun 2006 19:34:23 +0800 Message-ID: <988EE2C769AC284ABAE9328BFC10703FC687B8@ZMY16EXM66.ds.mot.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [OSPF] OSPFv3: Vlink Instance Id Thread-Index: AcaKJlLJ/9quIx5bTZyg1eKjUeWPDQ== From: "Khan Amir-G20247" To: X-Brightmail-Tracker: AAAAAQAAAAQ= X-White-List-Member: TRUE X-Spam-Score: 0.1 (/) X-Scan-Signature: d185fa790257f526fedfd5d01ed9c976 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0007422223==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============0007422223== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C68A26.5652075B" This is a multi-part message in MIME format. ------_=_NextPart_001_01C68A26.5652075B Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi=20 I have a doubt related to VL instance id configuration.=20 In Section 3.1.2 of OSPFv3-update-08 draft, for VL Instance Id it states that "The instance ID for a virtual link is independent of the instance ID of the outgoing interface it uses in the transit area and is configurable."=20 Then this means that VL instance-id can be different from its outgoing interface Instance Id. Which means they will form a part of two different communities. Pls provide me more clarification on this. Regards Aamir ------_=_NextPart_001_01C68A26.5652075B Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable [OSPF] OSPFv3: Vlink Instance Id

Hi


I have a doubt = related to VL instance id configuration.
In Section 3.1.2 = of OSPFv3-update-08 draft, for VL Instance Id it states that = "The = instance ID for a virtual link is independent of the instance ID of the = outgoing interface it uses in the transit area and is = configurable."

Then this means = that VL instance-id can be different from its outgoing interface = Instance Id. Which means they will form a part of two different = communities.

Pls provide me more = clarification on this.


Regards
Aamir


------_=_NextPart_001_01C68A26.5652075B-- --===============0007422223== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============0007422223==-- From ospf-bounces@ietf.org Wed Jun 07 11:08:06 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fnzda-00020s-LY; Wed, 07 Jun 2006 11:08:02 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FnzdZ-00020n-UD for ospf@ietf.org; Wed, 07 Jun 2006 11:08:01 -0400 Received: from sj-iport-4.cisco.com ([171.68.10.86]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FnzdY-0006ZO-K8 for ospf@ietf.org; Wed, 07 Jun 2006 11:08:01 -0400 Received: from sj-dkim-4.cisco.com ([171.71.179.196]) by sj-iport-4.cisco.com with ESMTP; 07 Jun 2006 08:08:00 -0700 X-IronPort-AV: i="4.05,217,1146466800"; d="scan'208"; a="1821186833:sNHT116724108" Received: from rtp-core-2.cisco.com (rtp-core-2.cisco.com [64.102.124.13]) by sj-dkim-4.cisco.com (8.12.11/8.12.11) with ESMTP id k57F7xJ8001902; Wed, 7 Jun 2006 08:07:59 -0700 Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id k57F7oJ4002799; Wed, 7 Jun 2006 11:07:59 -0400 (EDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Wed, 7 Jun 2006 11:07:55 -0400 Received: from [10.82.216.58] ([10.82.216.58]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Wed, 7 Jun 2006 11:07:54 -0400 Message-ID: <4486EBCA.7000204@cisco.com> Date: Wed, 07 Jun 2006 11:07:54 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Khan Amir-G20247 Subject: Re: [OSPF] OSPFv3: Vlink Instance Id References: <988EE2C769AC284ABAE9328BFC10703FC687B8@ZMY16EXM66.ds.mot.com> In-Reply-To: <988EE2C769AC284ABAE9328BFC10703FC687B8@ZMY16EXM66.ds.mot.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 07 Jun 2006 15:07:54.0941 (UTC) FILETIME=[275C56D0:01C68A44] DKIM-Signature: a=rsa-sha1; q=dns; l=942; t=1149692880; x=1150556880; c=relaxed/simple; s=sjdkim4001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=acee@cisco.com; z=From:Acee=20Lindem=20 |Subject:Re=3A=20[OSPF]=20OSPFv3=3A=20Vlink=20Instance=20Id; X=v=3Dcisco.com=3B=20h=3DDWFUpX+riHvl9AsoNI+tPhYLlfE=3D; b=G4NHi2qHY91/QHm36HWG7WwIqh054jENconYBLHSe6FL3hzMCSM/cZ483z+4dmwyu+dANW58 Sj5OLZuWtPgYw1JmaGtrNVCa03djQYBAari0MmkOhl0GyKqIvKQaSd/k; Authentication-Results: sj-dkim-4.cisco.com; header.From=acee@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: cab78e1e39c4b328567edb48482b6a69 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Amir, Khan Amir-G20247 wrote: >Hi > > >I have a doubt related to VL instance id configuration. >In Section 3.1.2 of OSPFv3-update-08 draft, for VL Instance Id it states >that "The instance ID for a virtual link is independent of the instance >ID of the outgoing interface it uses in the transit area and is >configurable." >Then this means that VL instance-id can be different from its outgoing >interface Instance Id. > Absolutely. > Which means they will form a part of two >different communities. > > I don't know what you are concerned about. They are independent OSPF interfaces. Thanks, Acee >Pls provide me more clarification on this. > > >Regards >Aamir > > > > > >------------------------------------------------------------------------ > >_______________________________________________ >OSPF mailing list >OSPF@ietf.org >https://www1.ietf.org/mailman/listinfo/ospf > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Wed Jun 07 11:52:20 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fo0KO-0002Ah-I7; Wed, 07 Jun 2006 11:52:16 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fo0KN-0002Ac-V8 for ospf@ietf.org; Wed, 07 Jun 2006 11:52:15 -0400 Received: from sj-iport-4.cisco.com ([171.68.10.86]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Fo0KM-00024E-Kc for ospf@ietf.org; Wed, 07 Jun 2006 11:52:15 -0400 Received: from sj-dkim-7.cisco.com ([171.68.10.88]) by sj-iport-4.cisco.com with ESMTP; 07 Jun 2006 08:52:14 -0700 X-IronPort-AV: i="4.05,217,1146466800"; d="scan'208"; a="1821231120:sNHT34647420" Received: from sj-core-3.cisco.com (sj-core-3.cisco.com [171.68.223.137]) by sj-dkim-7.cisco.com (8.12.11/8.12.11) with ESMTP id k57FqEsJ026577; Wed, 7 Jun 2006 08:52:14 -0700 Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by sj-core-3.cisco.com (8.12.10/8.12.6) with ESMTP id k57FqDIs017056; Wed, 7 Jun 2006 08:52:13 -0700 (PDT) Received: from xfe-rtp-202.amer.cisco.com ([64.102.31.21]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Wed, 7 Jun 2006 11:52:13 -0400 Received: from [10.82.216.58] ([10.82.216.58]) by xfe-rtp-202.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Wed, 7 Jun 2006 11:52:13 -0400 Message-ID: <4486F62C.3020903@cisco.com> Date: Wed, 07 Jun 2006 11:52:12 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: badvel vishnu reddy Subject: Re: [OSPF] Re:Whether to take the global prefixes from the LinkLsa or Intra-area-prefix Lsa References: <20060606053107.30997.qmail@webmail28.rediffmail.com> In-Reply-To: <20060606053107.30997.qmail@webmail28.rediffmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 07 Jun 2006 15:52:13.0238 (UTC) FILETIME=[57D44560:01C68A4A] DKIM-Signature: a=rsa-sha1; q=dns; l=1549; t=1149695534; x=1150559534; c=relaxed/simple; s=sjdkim7001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=acee@cisco.com; z=From:Acee=20Lindem=20 |Subject:Re=3A=20[OSPF]=20Re=3AWhether=20to=20take=20the=20global=20prefixes=20fr om=20the=20LinkLsa=0A=20or=09Intra-area-prefix=20Lsa; X=v=3Dcisco.com=3B=20h=3D9GZrG+txmd7dn2Dswt02HpDa7VI=3D; b=N4D8W+Kg8J+nLhzbUnFxxqXMmG7zsvcKbaAlK1BgatyLF9Ouxv+PPEUeoFil8o9BkHpkoBF5 4vR6rj0XorbHV2XgbcbB0mjUZRslNZx5NnB7htTXhvZ5nQLTC1U8XuO1; Authentication-Results: sj-dkim-7.cisco.com; header.From=acee@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: 8b431ad66d60be2d47c7bfeb879db82c Cc: ospf X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Vishnu, badvel vishnu reddy wrote: > >Hi All > >Suppose if by chance someone configures like this,all routers are on the same link. > > R3(DR) > | 55:55::/64 > | > R1 ----------------------------- R2 > 65:65::/64 75:75::/64 > >Eventhough all the routers are on the same link, still each one is different subnet, So from R1 to reach prefix 75:75:: we need to specify the next hop as R2's linklocal addresses. > > Nope - all the IPv6 prefixes advertised by the DR in the intra-area-prefix-LS(s) referencing the network-LSA inherit the the next hop associated with the network vertex. If you are directly attached to the network vertex, you have a direct or connected IPv6 next hop. I don't know what you read in section 3.8.1 that would lead you to believe otherwise. >So in this scenario when the routers are on the same link should i use link lsa's for the global prefixes as well as next-hop addresses? > > or >Should i use type-9 lsa (reference type network) generated by DR and >add all the prefixes? and for each corresponding prefix go to the link lsa and get the next hop address? > > Neither - see above. Hope this helps, Acee >Regards >Vishnu > > > >------------------------------------------------------------------------ > >_______________________________________________ >OSPF mailing list >OSPF@ietf.org >https://www1.ietf.org/mailman/listinfo/ospf > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Thu Jun 08 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 1FoEQS-0006h6-Sm; Thu, 08 Jun 2006 02:55:28 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FoEQS-0006gf-1k for ospf@ietf.org; Thu, 08 Jun 2006 02:55:28 -0400 Received: from [203.199.83.133] (helo=rediffmail.com) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1FoEQN-0007aF-Vw for ospf@ietf.org; Thu, 08 Jun 2006 02:55:28 -0400 Received: (qmail 17303 invoked by uid 510); 8 Jun 2006 06:53:41 -0000 Date: 8 Jun 2006 06:53:41 -0000 Message-ID: <20060608065341.17302.qmail@webmail43.rediffmail.com> Received: from unknown (203.126.136.220) by rediffmail.com via HTTP; 08 jun 2006 06:53:41 -0000 MIME-Version: 1.0 From: "Vivek Dubey" To: "Acee Lindem" X-Spam-Score: 1.1 (+) X-Scan-Signature: b4a0a5f5992e2a4954405484e7717d8c Cc: ospf@ietf.org Subject: [OSPF] Re: OSPFv3: Vlink Instance Id X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Vivek Dubey List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1636234360==" Errors-To: ospf-bounces@ietf.org This is a multipart mime message --===============1636234360== Content-type: multipart/alternative; boundary="Next_1149749621---0-203.199.83.133-17293" This is a multipart mime message --Next_1149749621---0-203.199.83.133-17293 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi Acee,=0A=0AConsider the topology:=0A =0A = ---------(i0)R1(i1)------(i1)R2(i0)-----------=0A=0AOspf Instanc= e 1 configuration (Ospf-domain-1)=0A---------------------------------------= --------=0ARouter R1:=0A----------=0AInterface i0: assocciated instance ID = 1, Area 2.2.2.2=0AInterface i1: assocciated instance ID 1, Area 1.1.1.1=0AV= link: Transit area 1.1.1.1, Nbr Rtr ID R2, ospfv3VirtIfInstId 2=0A=0A=0ARou= ter R2:=0A----------=0AInterface i0: assocciated instance ID 1, Area 0.0.0.= 0=0AInterface i1: assocciated instance ID 1, Area 1.1.1.1=0AVlink: Transit = area 1.1.1.1, Nbr Rtr ID R1, ospfv3VirtIfInstId 2=0A=0A =0AShould t= his Vlink be made up, though the instance ID associated with Vlink is diffe= rent than that of the physical interface, it would use.=0A=0A =0AIf= VLink is declared up, it is part of Ospf-domain-2 while rest of the interf= aces are part of Ospf-domain-1. What purpose such a Vlink is accomplishing = ?=0A=0A =0AMIB configuration for tables:=0AArea Table=0AArea-Scope = LSDB=0AAS-Scope LSDB=0AHost Table=0ADo not provide support for Ospf Multip= le Instances=0A=0ABut for few other table:=0AInterface Table,=0ALink Scope = LSDB=0AExplicit support of multiple instances is provided by making instanc= e part of Index.=0A=0ASNMP Community string (RFC 4133) concept would be use= d for tables not having instance id as part of index?=0A=0AIf so, why to ma= ke instance id as part of index for any table?=0A=0AThanks=0AVivek=0A=0A --Next_1149749621---0-203.199.83.133-17293 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

=0AHi Acee,
=0A
=0AConsider the topology:
=0A    &nbs= p;                     &n= bsp;
=0A                -------= --(i0)R1(i1)------(i1)R2(i0)-----------
=0A
=0AOspf Instance 1 config= uration (Ospf-domain-1)
=0A---------------------------------------------= --
=0ARouter R1:
=0A----------
=0AInterface i0: assocciated instan= ce ID 1, Area 2.2.2.2
=0AInterface i1: assocciated instance ID 1, Area 1= .1.1.1
=0AVlink: Transit area 1.1.1.1, Nbr Rtr ID R2, ospfv3VirtIfInstId= 2
=0A
=0A
=0ARouter R2:
=0A----------
=0AInterface i0: asso= cciated instance ID 1, Area 0.0.0.0
=0AInterface i1: assocciated instanc= e ID 1, Area 1.1.1.1
=0AVlink: Transit area 1.1.1.1, Nbr Rtr ID R1, ospf= v3VirtIfInstId 2
=0A
=0A<vivek1>
=0AShould this Vlink be ma= de up, though the instance ID associated with Vlink is different than that = of the physical interface, it would use.
=0A
=0A<vivek2>
= =0AIf VLink is declared up, it is part of Ospf-domain-2 while rest of the i= nterfaces are part of Ospf-domain-1. What purpose such a Vlink is accomplis= hing ?
=0A
=0A<vivek3>
=0AMIB configuration for tables:
= =0AArea Table
=0AArea-Scope LSDB
=0AAS-Scope  LSDB
=0AHost Ta= ble
=0ADo not provide support for Ospf Multiple Instances
=0A
=0AB= ut for few other table:
=0AInterface Table,
=0ALink Scope LSDB
=0A= Explicit support of multiple instances is provided by making instance part = of Index.
=0A
=0ASNMP Community string (RFC 4133) concept would be us= ed for tables not having instance id as part of index?
=0A
=0AIf so, = why to make instance id as part of index for any table?
=0A
=0AThanks=
=0AVivek
=0A
=0A=0A

=0A

=0A=0A --Next_1149749621---0-203.199.83.133-17293-- --===============1636234360== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============1636234360==-- From ospf-bounces@ietf.org Thu Jun 08 09:32:26 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FoKcR-00011P-Nn; Thu, 08 Jun 2006 09:32:15 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FoKcQ-00011K-Cz for ospf@ietf.org; Thu, 08 Jun 2006 09:32:14 -0400 Received: from sj-iport-6.cisco.com ([171.71.176.117]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FoKcP-0004hK-3R for ospf@ietf.org; Thu, 08 Jun 2006 09:32:14 -0400 Received: from sj-dkim-3.cisco.com ([171.71.179.195]) by sj-iport-6.cisco.com with ESMTP; 08 Jun 2006 06:32:12 -0700 Received: from rtp-core-2.cisco.com (rtp-core-2.cisco.com [64.102.124.13]) by sj-dkim-3.cisco.com (8.12.11/8.12.11) with ESMTP id k58DWCvR026725; Thu, 8 Jun 2006 06:32:12 -0700 Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id k58DWCIs004030; Thu, 8 Jun 2006 09:32:12 -0400 (EDT) Received: from xfe-rtp-202.amer.cisco.com ([64.102.31.21]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Thu, 8 Jun 2006 09:32:11 -0400 Received: from [10.82.216.58] ([10.82.216.58]) by xfe-rtp-202.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Thu, 8 Jun 2006 09:32:11 -0400 Message-ID: <448826DA.5050503@cisco.com> Date: Thu, 08 Jun 2006 09:32:10 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Vivek Dubey References: <20060608065341.17302.qmail@webmail43.rediffmail.com> In-Reply-To: <20060608065341.17302.qmail@webmail43.rediffmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 08 Jun 2006 13:32:11.0623 (UTC) FILETIME=[F27D4F70:01C68AFF] DKIM-Signature: a=rsa-sha1; q=dns; l=1718; t=1149773532; x=1150637532; c=relaxed/simple; s=sjdkim3001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=acee@cisco.com; z=From:Acee=20Lindem=20 |Subject:Re=3A=20OSPFv3=3A=20Vlink=20Instance=20Id; X=v=3Dcisco.com=3B=20h=3DFZI1IPQC0VFToxwyJnXqBImHSZE=3D; b=wKr7tPGljaOl+cOS09Z9V4jqfKMVKSJxn2isNwKuB3VdjVgHjkDgdQIGhMU9yLRhKYJunv+5 nC+mX0kD5m3UHXrICL71cmFdp4n6xVdID7ctvB9n7P2K/ne1ohPo/Ox1; Authentication-Results: sj-dkim-3.cisco.com; header.From=acee@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: f607d15ccc2bc4eaf3ade8ffa8af02a0 Cc: ospf@ietf.org Subject: [OSPF] Re: OSPFv3: Vlink Instance Id X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Vivek, Ok - I see what you mean. The text was suppose to reference "Interface ID" rather than "Instance ID". I've corrected this and moved it in the -10 version. Thanks, Acee Vivek Dubey wrote: >Hi Acee, > >Consider the topology: > > ---------(i0)R1(i1)------(i1)R2(i0)----------- > >Ospf Instance 1 configuration (Ospf-domain-1) >----------------------------------------------- >Router R1: >---------- >Interface i0: assocciated instance ID 1, Area 2.2.2.2 >Interface i1: assocciated instance ID 1, Area 1.1.1.1 >Vlink: Transit area 1.1.1.1, Nbr Rtr ID R2, ospfv3VirtIfInstId 2 > > >Router R2: >---------- >Interface i0: assocciated instance ID 1, Area 0.0.0.0 >Interface i1: assocciated instance ID 1, Area 1.1.1.1 >Vlink: Transit area 1.1.1.1, Nbr Rtr ID R1, ospfv3VirtIfInstId 2 > > >Should this Vlink be made up, though the instance ID associated with Vlink is different than that of the physical interface, it would use. > > >If VLink is declared up, it is part of Ospf-domain-2 while rest of the interfaces are part of Ospf-domain-1. What purpose such a Vlink is accomplishing ? > > >MIB configuration for tables: >Area Table >Area-Scope LSDB >AS-Scope LSDB >Host Table >Do not provide support for Ospf Multiple Instances > >But for few other table: >Interface Table, >Link Scope LSDB >Explicit support of multiple instances is provided by making instance part of Index. > >SNMP Community string (RFC 4133) concept would be used for tables not having instance id as part of index? > >If so, why to make instance id as part of index for any table? > >Thanks >Vivek > > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 09 00:30:01 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FoYdA-00074Q-1L; Fri, 09 Jun 2006 00:29:56 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FoYd8-00074L-EI for ospf@ietf.org; Fri, 09 Jun 2006 00:29:54 -0400 Received: from [203.199.83.148] (helo=rediffmail.com) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1FoYd6-0007Xk-KX for ospf@ietf.org; Fri, 09 Jun 2006 00:29:54 -0400 Received: (qmail 22851 invoked by uid 510); 9 Jun 2006 04:28:10 -0000 Date: 9 Jun 2006 04:28:10 -0000 Message-ID: <20060609042810.22850.qmail@webmail26.rediffmail.com> Received: from unknown (203.126.136.220) by rediffmail.com via HTTP; 09 jun 2006 04:28:10 -0000 MIME-Version: 1.0 From: "Vivek Dubey" To: ospf@ietf.org X-Spam-Score: 1.6 (+) X-Scan-Signature: 52e1467c2184c31006318542db5614d5 Subject: [OSPF] Ospfv3 Mib - Draft 10 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Vivek Dubey List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0122157577==" Errors-To: ospf-bounces@ietf.org This is a multipart mime message --===============0122157577== Content-type: multipart/alternative; boundary="Next_1149827290---0-203.199.83.148-22834" This is a multipart mime message --Next_1149827290---0-203.199.83.148-22834 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline MIB configuration for tables like, Area Table and Area-Scope LSDB=0Adoes no= t provide support for Ospf Multiple Instances.=0A=0AThough for few other ta= bles like, Interface Table and Link Scope LSDB,=0Aexplicit support of multi= ple instances is provided by making instance ID part of the table Index.=0A= =0A How would the support for multiple instances be extended to rema= ining tables? Are we thinking of using SNMP Community string (RFC 4133) con= cept ?=0A=0AThanks=0A-Vivek --Next_1149827290---0-203.199.83.148-22834 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

=0AMIB configuration for tables like, Area Table and Area-Scope LSDB
= =0Adoes not provide support for Ospf Multiple Instances.
=0A
=0AThoug= h for few other tables like, Interface Table and Link Scope LSDB,
=0Aexp= licit support of multiple instances is provided by making instance ID part = of the table Index.
=0A
=0A<vivek> How would the support for mu= ltiple instances be extended to remaining tables? Are we thinking of using = SNMP Community string (RFC 4133) concept ?
=0A
=0AThanks
=0A-Vivek= =0A

=0A

=0A=0A --Next_1149827290---0-203.199.83.148-22834-- --===============0122157577== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============0122157577==-- From ospf-bounces@ietf.org Fri Jun 09 05:45:31 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FodYT-0005pu-2M; Fri, 09 Jun 2006 05:45:25 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FodYQ-0005ph-Tq for ospf@ietf.org; Fri, 09 Jun 2006 05:45:23 -0400 Received: from [203.199.83.246] (helo=rediffmail.com) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1FodYO-0003kG-Q1 for ospf@ietf.org; Fri, 09 Jun 2006 05:45:22 -0400 Received: (qmail 3692 invoked by uid 510); 9 Jun 2006 09:43:39 -0000 Date: 9 Jun 2006 09:43:39 -0000 Message-ID: <20060609094339.3691.qmail@webmail35.rediffmail.com> Received: from unknown (203.126.136.220) by rediffmail.com via HTTP; 09 jun 2006 09:43:39 -0000 MIME-Version: 1.0 From: "Vivek Dubey" To: "Acee Lindem" X-Spam-Score: 0.1 (/) X-Scan-Signature: f66b12316365a3fe519e75911daf28a8 Cc: ospf@ietf.org Subject: [OSPF] Re: OSPFv3: Vlink Instance Id X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Vivek Dubey List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1633313660==" Errors-To: ospf-bounces@ietf.org This is a multipart mime message --===============1633313660== Content-type: multipart/alternative; boundary="Next_1149846219---0-203.199.83.246-3688" This is a multipart mime message --Next_1149846219---0-203.199.83.246-3688 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi Acee,=0A=0AOspfv6 Draft 9=0A--------------=0A3.2.2 Receiving protocol p= ackets =A0=0AThe Instance ID specified in the OSPF header must match the re= ceiving interface's Instance ID=0A=0A Above check can than be done j= ust after checking Ospf Version number being 3.=0A=0AThanks=0AVivek=0A=0A= =0A=0AOn Thu, 08 Jun 2006 Acee Lindem wrote :=0A>Hi Vivek,=0A>Ok - I see wh= at you mean. The text was suppose to reference=0A>"Interface ID" rather tha= n "Instance ID". I've corrected this and moved=0A>it in the -10 version.=0A= >=0A>Thanks,=0A>Acee=0A>=0A>Vivek Dubey wrote:=0A>=0A>>Hi Acee,=0A>>=0A>>Co= nsider the topology:=0A>> -------= --(i0)R1(i1)------(i1)R2(i0)-----------=0A>>=0A>>Ospf Instance 1 configurat= ion (Ospf-domain-1)=0A>>-----------------------------------------------=0A>= >Router R1:=0A>>----------=0A>>Interface i0: assocciated instance ID 1, Are= a 2.2.2.2=0A>>Interface i1: assocciated instance ID 1, Area 1.1.1.1=0A>>Vli= nk: Transit area 1.1.1.1, Nbr Rtr ID R2, ospfv3VirtIfInstId 2=0A>>=0A>>=0A>= >Router R2:=0A>>----------=0A>>Interface i0: assocciated instance ID 1, Are= a 0.0.0.0=0A>>Interface i1: assocciated instance ID 1, Area 1.1.1.1=0A>>Vli= nk: Transit area 1.1.1.1, Nbr Rtr ID R1, ospfv3VirtIfInstId 2=0A>>=0A>> Should this Vlink be made up, though the instance ID associated with V= link is different than that of the physical interface, it would use.=0A>>= =0A>> If VLink is declared up, it is part of Ospf-domain-2 while re= st of the interfaces are part of Ospf-domain-1. What purpose such a Vlink i= s accomplishing ?=0A>>=0A>> MIB configuration for tables:=0A>>Area = Table=0A>>Area-Scope LSDB=0A>>AS-Scope LSDB=0A>>Host Table=0A>>Do not prov= ide support for Ospf Multiple Instances=0A>>=0A>>But for few other table:= =0A>>Interface Table,=0A>>Link Scope LSDB=0A>>Explicit support of multiple = instances is provided by making instance part of Index.=0A>>=0A>>SNMP Commu= nity string (RFC 4133) concept would be used for tables not having instance= id as part of index?=0A>>=0A>>If so, why to make instance id as part of in= dex for any table?=0A>>=0A>>Thanks=0A>>Vivek=0A>>=0A>>=0A>> =0A --Next_1149846219---0-203.199.83.246-3688 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

=0AHi Acee,
=0A
=0AOspfv6 Draft 9
=0A--------------
=0A3.2.2=   Receiving protocol packets 
=0AThe Instance ID specified in= the OSPF header must match the receiving interface's Instance ID
=0A=0A<vivek> Above check can than be done just after checking Ospf Ver= sion number being 3.
=0A
=0AThanks
=0AVivek
=0A
=0A
=0A=0AOn Thu, 08 Jun 2006 Acee Lindem wrote :
=0A>Hi Vivek,
=0A>= Ok - I see what you mean. The text was suppose to reference
=0A>"= ;Interface ID" rather than "Instance ID". I've corrected thi= s and moved
=0A>it in the -10 version.
=0A>
=0A>Thanks,=0A>Acee
=0A>
=0A>Vivek Dubey wrote:
=0A>
=0A>= >Hi Acee,
=0A>>
=0A>>Consider the topology:
=0A>= >                    &= nbsp;                    = ---------(i0)R1(i1)------(i1)R2(i0)-----------
=0A>>
=0A>&= gt;Ospf Instance 1 configuration (Ospf-domain-1)
=0A>>------------= -----------------------------------
=0A>>Router R1:
=0A>>= ----------
=0A>>Interface i0: assocciated instance ID 1, Area 2.2.= 2.2
=0A>>Interface i1: assocciated instance ID 1, Area 1.1.1.1
= =0A>>Vlink: Transit area 1.1.1.1, Nbr Rtr ID R2, ospfv3VirtIfInstId 2=
=0A>>
=0A>>
=0A>>Router R2:
=0A>>-----= -----
=0A>>Interface i0: assocciated instance ID 1, Area 0.0.0.0=0A>>Interface i1: assocciated instance ID 1, Area 1.1.1.1
=0A&g= t;>Vlink: Transit area 1.1.1.1, Nbr Rtr ID R1, ospfv3VirtIfInstId 2
= =0A>>
=0A>><vivek1> Should this Vlink be made up, thou= gh the instance ID associated with Vlink is different than that of the phys= ical interface, it would use.
=0A>>
=0A>><vivek2> I= f VLink is declared up, it is part of Ospf-domain-2 while rest of the inter= faces are part of Ospf-domain-1. What purpose such a Vlink is accomplishing= ?
=0A>>
=0A>><vivek3> MIB configuration for tables= :
=0A>>Area Table
=0A>>Area-Scope LSDB
=0A>>AS-S= cope  LSDB
=0A>>Host Table
=0A>>Do not provide suppo= rt for Ospf Multiple Instances
=0A>>
=0A>>But for few oth= er table:
=0A>>Interface Table,
=0A>>Link Scope LSDB
= =0A>>Explicit support of multiple instances is provided by making ins= tance part of Index.
=0A>>
=0A>>SNMP Community string (RF= C 4133) concept would be used for tables not having instance id as part of = index?
=0A>>
=0A>>If so, why to make instance id as part = of index for any table?
=0A>>
=0A>>Thanks
=0A>>V= ivek
=0A>>
=0A>>
=0A>> 
=0A=0A

=0A
=0A=0A --Next_1149846219---0-203.199.83.246-3688-- --===============1633313660== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============1633313660==-- From ospf-bounces@ietf.org Fri Jun 09 09:58:31 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FohVD-0002Qf-C5; Fri, 09 Jun 2006 09:58:19 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FohVB-0002Qa-Pv for ospf@ietf.org; Fri, 09 Jun 2006 09:58:17 -0400 Received: from zrtps0kp.nortel.com ([47.140.192.56]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FohVA-0002X3-Cx for ospf@ietf.org; Fri, 09 Jun 2006 09:58:17 -0400 Received: from zrtphxm1.corp.nortel.com (zrtphxm1.corp.nortel.com [47.140.202.50]) by zrtps0kp.nortel.com (Switch-2.2.6/Switch-2.2.0) with ESMTP id k59DwBm18557; Fri, 9 Jun 2006 09:58:11 -0400 (EDT) X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: RE: [OSPF] Ospfv3 Mib - Draft 10 Date: Fri, 9 Jun 2006 09:57:56 -0400 Message-ID: <4B7DAC3FEFD35D4A96BDD0116990501403365F4E@zrtphxm1.corp.nortel.com> In-Reply-To: <20060609042810.22850.qmail@webmail26.rediffmail.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [OSPF] Ospfv3 Mib - Draft 10 Thread-Index: AcaLfWBtdbxV4lnzTiqEabmc89rqBAATgRUQ From: "Daniel Joyal" To: "Vivek Dubey" , X-Spam-Score: 0.0 (/) X-Scan-Signature: a1852b4f554b02e7e4548cc7928acc1f Cc: X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1198834323==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============1198834323== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C68BCC.B5B0911B" This is a multi-part message in MIME format. ------_=_NextPart_001_01C68BCC.B5B0911B Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Yes. Multiple instances would be supported by the SNMP framework described in RFC 3411 and RFC 4133. A paragraph needs to be added to the MIB similar to the one in the draft OSPFv2 MIB, section 1.5. =20 Regarding the instanceID index component in various tables, this needs to be changed to align with Acee's change to the draft OSPF for IPv6 version -10. =20 Thanks. -Dan -----Original Message----- From: Vivek Dubey [mailto:vivek_ospf@rediffmail.com]=20 Sent: Friday, June 09, 2006 12:28 AM To: ospf@ietf.org Subject: [OSPF] Ospfv3 Mib - Draft 10 =09 =09 MIB configuration for tables like, Area Table and Area-Scope LSDB does not provide support for Ospf Multiple Instances. =09 Though for few other tables like, Interface Table and Link Scope LSDB, explicit support of multiple instances is provided by making instance ID part of the table Index. =09 How would the support for multiple instances be extended to remaining tables? Are we thinking of using SNMP Community string (RFC 4133) concept ? =09 Thanks -Vivek=20 =09 =20 ------_=_NextPart_001_01C68BCC.B5B0911B Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Yes.=20 Multiple instances would be supported by the SNMP = framework
described in RFC 3411 and RFC 4133. A paragraph needs to be=20 added
to the=20 MIB similar to the one in the draft OSPFv2 MIB, section = 1.5.
 
Regarding the instanceID index component in various tables,=20 this
needs=20 to be changed to align with Acee's change to the draft OSPF for=20 IPv6
version -10.
 
Thanks.
-Dan
-----Original Message-----
From: = Vivek Dubey=20 [mailto:vivek_ospf@rediffmail.com]
Sent: Friday, June 09, = 2006=20 12:28 AM
To: ospf@ietf.org
Subject: [OSPF] Ospfv3 = Mib -=20 Draft 10

MIB configuration for tables like, Area Table and Area-Scope = LSDB
does=20 not provide support for Ospf Multiple Instances.

Though for few = other=20 tables like, Interface Table and Link Scope LSDB,
explicit support = of=20 multiple instances is provided by making instance ID part of the table = Index.

<vivek> How would the support for multiple = instances be=20 extended to remaining tables? Are we thinking of using SNMP Community = string=20 (RFC 4133) concept ?

Thanks
-Vivek



------_=_NextPart_001_01C68BCC.B5B0911B-- --===============1198834323== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============1198834323==-- From ospf-bounces@ietf.org Fri Jun 09 13:40:48 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FokyR-0002Xs-0N; Fri, 09 Jun 2006 13:40:43 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FokyP-0002Xn-DF for ospf@ietf.org; Fri, 09 Jun 2006 13:40:41 -0400 Received: from rtp-iport-1.cisco.com ([64.102.122.148]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FokyO-0004AU-4y for ospf@ietf.org; Fri, 09 Jun 2006 13:40:41 -0400 Received: from rtp-core-1.cisco.com ([64.102.124.12]) by rtp-iport-1.cisco.com with ESMTP; 09 Jun 2006 10:40:39 -0700 X-BrightmailFiltered: true X-Brightmail-Tracker: AAAAAA== X-IronPort-AV: i="4.05,224,1146466800"; d="scan'208"; a="29144209:sNHT25258468" Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k59HedYL013530; Fri, 9 Jun 2006 13:40:39 -0400 (EDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 13:40:39 -0400 Received: from [10.82.225.193] ([10.82.225.193]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 13:40:38 -0400 Message-ID: <4489B296.1010009@cisco.com> Date: Fri, 09 Jun 2006 13:40:38 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Vivek Dubey References: <20060609094339.3691.qmail@webmail35.rediffmail.com> In-Reply-To: <20060609094339.3691.qmail@webmail35.rediffmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Jun 2006 17:40:38.0895 (UTC) FILETIME=[D2543FF0:01C68BEB] X-Spam-Score: 0.0 (/) X-Scan-Signature: a2c12dacc0736f14d6b540e805505a86 Cc: ospf@ietf.org Subject: [OSPF] Re: OSPFv3: Vlink Instance Id X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Vivek Dubey wrote: >Hi Acee, > >Ospfv6 Draft 9 >-------------- >3.2.2 Receiving protocol packets >The Instance ID specified in the OSPF header must match the receiving interface's Instance ID > > Above check can than be done just after checking Ospf Version number being 3. > > Hi Vivek, While the Instance ID can be used to allow the interface to be configured in multiple OSPFv3 instances, it can also be used to allow the interface to be configured in multiple areas in within the same OSPFv3 instance. I'll need to think more about updating the text. Thanks, Acee >Thanks >Vivek > > > >On Thu, 08 Jun 2006 Acee Lindem wrote : > > >>Hi Vivek, >>Ok - I see what you mean. The text was suppose to reference >>"Interface ID" rather than "Instance ID". I've corrected this and moved >>it in the -10 version. >> >>Thanks, >>Acee >> >>Vivek Dubey wrote: >> >> >> >>>Hi Acee, >>> >>>Consider the topology: >>> ---------(i0)R1(i1)------(i1)R2(i0)----------- >>> >>>Ospf Instance 1 configuration (Ospf-domain-1) >>>----------------------------------------------- >>>Router R1: >>>---------- >>>Interface i0: assocciated instance ID 1, Area 2.2.2.2 >>>Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>Vlink: Transit area 1.1.1.1, Nbr Rtr ID R2, ospfv3VirtIfInstId 2 >>> >>> >>>Router R2: >>>---------- >>>Interface i0: assocciated instance ID 1, Area 0.0.0.0 >>>Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>Vlink: Transit area 1.1.1.1, Nbr Rtr ID R1, ospfv3VirtIfInstId 2 >>> >>> Should this Vlink be made up, though the instance ID associated with Vlink is different than that of the physical interface, it would use. >>> >>> If VLink is declared up, it is part of Ospf-domain-2 while rest of the interfaces are part of Ospf-domain-1. What purpose such a Vlink is accomplishing ? >>> >>> MIB configuration for tables: >>>Area Table >>>Area-Scope LSDB >>>AS-Scope LSDB >>>Host Table >>>Do not provide support for Ospf Multiple Instances >>> >>>But for few other table: >>>Interface Table, >>>Link Scope LSDB >>>Explicit support of multiple instances is provided by making instance part of Index. >>> >>>SNMP Community string (RFC 4133) concept would be used for tables not having instance id as part of index? >>> >>>If so, why to make instance id as part of index for any table? >>> >>>Thanks >>>Vivek >>> >>> >>> >>> >>> > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 09 14:13:52 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FolUS-0001Sc-4n; Fri, 09 Jun 2006 14:13:48 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FolUQ-0001O9-Vc for ospf@ietf.org; Fri, 09 Jun 2006 14:13:46 -0400 Received: from sj-iport-5.cisco.com ([171.68.10.87]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FolUP-0000mr-Jy for ospf@ietf.org; Fri, 09 Jun 2006 14:13:46 -0400 Received: from sj-dkim-6.cisco.com ([171.68.10.81]) by sj-iport-5.cisco.com with ESMTP; 09 Jun 2006 11:13:45 -0700 X-IronPort-AV: i="4.05,224,1146466800"; d="scan'208"; a="292371971:sNHT35478422" Received: from sj-core-3.cisco.com (sj-core-3.cisco.com [171.68.223.137]) by sj-dkim-6.cisco.com (8.12.11/8.12.11) with ESMTP id k59IDjgY021992; Fri, 9 Jun 2006 11:13:45 -0700 Received: from xbh-sjc-221.amer.cisco.com (xbh-sjc-221.cisco.com [128.107.191.63]) by sj-core-3.cisco.com (8.12.10/8.12.6) with ESMTP id k59IDiIs008996; Fri, 9 Jun 2006 11:13:44 -0700 (PDT) Received: from xfe-sjc-211.amer.cisco.com ([171.70.151.174]) by xbh-sjc-221.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 11:13:44 -0700 Received: from [10.25.187.131] ([10.25.187.131]) by xfe-sjc-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 11:13:43 -0700 Message-ID: <4489BA55.40106@cisco.com> Date: Fri, 09 Jun 2006 13:13:41 -0500 From: Paul Wells User-Agent: Thunderbird 1.5.0.2 (X11/20060501) MIME-Version: 1.0 To: Acee Lindem Subject: Re: [OSPF] Re: OSPFv3: Vlink Instance Id References: <20060609094339.3691.qmail@webmail35.rediffmail.com> <4489B296.1010009@cisco.com> In-Reply-To: <4489B296.1010009@cisco.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Jun 2006 18:13:44.0280 (UTC) FILETIME=[71B5F580:01C68BF0] DKIM-Signature: a=rsa-sha1; q=dns; l=3274; t=1149876825; x=1150740825; c=relaxed/simple; s=sjdkim6001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=pauwells@cisco.com; z=From:Paul=20Wells=20 |Subject:Re=3A=20[OSPF]=20Re=3A=20OSPFv3=3A=20Vlink=20Instance=20Id; X=v=3Dcisco.com=3B=20h=3DSuOTz7KkAHA5v73bs8PuDnE4fXA=3D; b=CNy6qboSaMeivcajQtgCS3/636B4F9hV+/TCDkvwAuconQwr+BVgXbUew9IcgHhBa4uImiRH 4/NYjxCZTXC0grXtksIshjRZtPHtNUo7I7wz+74H9zUhAx71i54wxbya; Authentication-Results: sj-dkim-6.cisco.com; header.From=pauwells@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: 1676547e4f33b5e63227e9c02bd359e3 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Acee, I think the problem is that we overload the term "instance". As I see it, the OSPFv3 instance ID is simply an attribute which is used to demux packets. It could just as well have been called something like "OSPFv3 channel ID". This is not the same thing as the concept of multiple independent instances of OSPF running on the same router. Regards, Paul Acee Lindem wrote: > Vivek Dubey wrote: > >> Hi Acee, >> >> Ospfv6 Draft 9 >> -------------- >> 3.2.2 Receiving protocol packets The Instance ID specified in the >> OSPF header must match the receiving interface's Instance ID >> >> Above check can than be done just after checking Ospf Version >> number being 3. >> >> > Hi Vivek, > > While the Instance ID can be used to allow the interface to be configured > in multiple OSPFv3 instances, it can also be used to allow the interface to > be configured in multiple areas in within the same OSPFv3 instance. > > I'll need to think more about updating the text. > > Thanks, > Acee > > >> Thanks >> Vivek >> >> >> >> On Thu, 08 Jun 2006 Acee Lindem wrote : >> >> >>> Hi Vivek, >>> Ok - I see what you mean. The text was suppose to reference >>> "Interface ID" rather than "Instance ID". I've corrected this and moved >>> it in the -10 version. >>> >>> Thanks, >>> Acee >>> >>> Vivek Dubey wrote: >>> >>> >>>> Hi Acee, >>>> >>>> Consider the topology: >>>> >>>> ---------(i0)R1(i1)------(i1)R2(i0)----------- >>>> >>>> Ospf Instance 1 configuration (Ospf-domain-1) >>>> ----------------------------------------------- >>>> Router R1: >>>> ---------- >>>> Interface i0: assocciated instance ID 1, Area 2.2.2.2 >>>> Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>> Vlink: Transit area 1.1.1.1, Nbr Rtr ID R2, ospfv3VirtIfInstId 2 >>>> >>>> >>>> Router R2: >>>> ---------- >>>> Interface i0: assocciated instance ID 1, Area 0.0.0.0 >>>> Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>> Vlink: Transit area 1.1.1.1, Nbr Rtr ID R1, ospfv3VirtIfInstId 2 >>>> >>>> Should this Vlink be made up, though the instance ID >>>> associated with Vlink is different than that of the physical >>>> interface, it would use. >>>> >>>> If VLink is declared up, it is part of Ospf-domain-2 while >>>> rest of the interfaces are part of Ospf-domain-1. What purpose such >>>> a Vlink is accomplishing ? >>>> >>>> MIB configuration for tables: >>>> Area Table >>>> Area-Scope LSDB >>>> AS-Scope LSDB >>>> Host Table >>>> Do not provide support for Ospf Multiple Instances >>>> >>>> But for few other table: >>>> Interface Table, >>>> Link Scope LSDB >>>> Explicit support of multiple instances is provided by making >>>> instance part of Index. >>>> >>>> SNMP Community string (RFC 4133) concept would be used for tables >>>> not having instance id as part of index? >>>> >>>> If so, why to make instance id as part of index for any table? >>>> >>>> Thanks >>>> Vivek >>>> >>>> >>>> >>>> >> >> >> > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 09 14:21:27 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Folbq-0006Da-RN; Fri, 09 Jun 2006 14:21:26 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Folbq-0006DV-1Q for ospf@ietf.org; Fri, 09 Jun 2006 14:21:26 -0400 Received: from rtp-iport-2.cisco.com ([64.102.122.149]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Folbn-0000xv-Mt for ospf@ietf.org; Fri, 09 Jun 2006 14:21:26 -0400 Received: from rtp-core-2.cisco.com ([64.102.124.13]) by rtp-iport-2.cisco.com with ESMTP; 09 Jun 2006 14:21:24 -0400 X-IronPort-AV: i="4.05,224,1146456000"; d="scan'208"; a="89684668:sNHT32204252" Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by rtp-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id k59ILNno000170; Fri, 9 Jun 2006 14:21:23 -0400 (EDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 14:21:23 -0400 Received: from [10.82.225.193] ([10.82.225.193]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 14:21:22 -0400 Message-ID: <4489BC22.6050300@cisco.com> Date: Fri, 09 Jun 2006 14:21:22 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Paul Wells Subject: Re: [OSPF] Re: OSPFv3: Vlink Instance Id References: <20060609094339.3691.qmail@webmail35.rediffmail.com> <4489B296.1010009@cisco.com> <4489BA55.40106@cisco.com> In-Reply-To: <4489BA55.40106@cisco.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Jun 2006 18:21:22.0770 (UTC) FILETIME=[82FDFB20:01C68BF1] X-Spam-Score: 0.0 (/) X-Scan-Signature: 42e3ed3f10a1d8bef690f09da16f507a Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Paul, Paul Wells wrote: > Hi Acee, > > I think the problem is that we overload the term "instance". > > As I see it, the OSPFv3 instance ID is simply an attribute which is > used to demux packets. It could just as well have been called > something like "OSPFv3 channel ID". > > This is not the same thing as the concept of multiple independent > instances of OSPF running on the same router. I agree. The packet header term Instance ID is rather unfortunate but I don't want to change it now given that it is in everybody's ospfv3 packet format header file :^) I've tried to generalized the demux'ing without specifying the exact implementation. I'll post the text snipet for comment ahead of the -10 version. Thanks, Acee > > Regards, > Paul > > Acee Lindem wrote: > >> Vivek Dubey wrote: >> >>> Hi Acee, >>> >>> Ospfv6 Draft 9 >>> -------------- >>> 3.2.2 Receiving protocol packets The Instance ID specified in the >>> OSPF header must match the receiving interface's Instance ID >>> >>> Above check can than be done just after checking Ospf >>> Version number being 3. >>> >>> >> Hi Vivek, >> >> While the Instance ID can be used to allow the interface to be >> configured >> in multiple OSPFv3 instances, it can also be used to allow the >> interface to >> be configured in multiple areas in within the same OSPFv3 instance. >> >> I'll need to think more about updating the text. >> >> Thanks, >> Acee >> >> >>> Thanks >>> Vivek >>> >>> >>> >>> On Thu, 08 Jun 2006 Acee Lindem wrote : >>> >>> >>>> Hi Vivek, >>>> Ok - I see what you mean. The text was suppose to reference >>>> "Interface ID" rather than "Instance ID". I've corrected this and >>>> moved >>>> it in the -10 version. >>>> >>>> Thanks, >>>> Acee >>>> >>>> Vivek Dubey wrote: >>>> >>>> >>>> >>>>> Hi Acee, >>>>> >>>>> Consider the topology: >>>>> >>>>> ---------(i0)R1(i1)------(i1)R2(i0)----------- >>>>> >>>>> Ospf Instance 1 configuration (Ospf-domain-1) >>>>> ----------------------------------------------- >>>>> Router R1: >>>>> ---------- >>>>> Interface i0: assocciated instance ID 1, Area 2.2.2.2 >>>>> Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>>> Vlink: Transit area 1.1.1.1, Nbr Rtr ID R2, ospfv3VirtIfInstId 2 >>>>> >>>>> >>>>> Router R2: >>>>> ---------- >>>>> Interface i0: assocciated instance ID 1, Area 0.0.0.0 >>>>> Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>>> Vlink: Transit area 1.1.1.1, Nbr Rtr ID R1, ospfv3VirtIfInstId 2 >>>>> >>>>> Should this Vlink be made up, though the instance ID >>>>> associated with Vlink is different than that of the physical >>>>> interface, it would use. >>>>> >>>>> If VLink is declared up, it is part of Ospf-domain-2 >>>>> while rest of the interfaces are part of Ospf-domain-1. What >>>>> purpose such a Vlink is accomplishing ? >>>>> >>>>> MIB configuration for tables: >>>>> Area Table >>>>> Area-Scope LSDB >>>>> AS-Scope LSDB >>>>> Host Table >>>>> Do not provide support for Ospf Multiple Instances >>>>> >>>>> But for few other table: >>>>> Interface Table, >>>>> Link Scope LSDB >>>>> Explicit support of multiple instances is provided by making >>>>> instance part of Index. >>>>> >>>>> SNMP Community string (RFC 4133) concept would be used for tables >>>>> not having instance id as part of index? >>>>> >>>>> If so, why to make instance id as part of index for any table? >>>>> >>>>> Thanks >>>>> Vivek >>>>> >>>>> >>>>> >>>>> >>>> >>> >>> >>> >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 09 14:46:33 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fom04-00088P-36; Fri, 09 Jun 2006 14:46:28 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fom03-00088I-Jt for ospf@ietf.org; Fri, 09 Jun 2006 14:46:27 -0400 Received: from sj-iport-5.cisco.com ([171.68.10.87]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Fom02-00042a-0R for ospf@ietf.org; Fri, 09 Jun 2006 14:46:27 -0400 Received: from sj-dkim-6.cisco.com ([171.68.10.81]) by sj-iport-5.cisco.com with ESMTP; 09 Jun 2006 11:46:26 -0700 X-IronPort-AV: i="4.05,224,1146466800"; d="scan'208"; a="292392080:sNHT33931640" Received: from sj-core-3.cisco.com (sj-core-3.cisco.com [171.68.223.137]) by sj-dkim-6.cisco.com (8.12.11/8.12.11) with ESMTP id k59IkPVO006084 for ; Fri, 9 Jun 2006 11:46:25 -0700 Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by sj-core-3.cisco.com (8.12.10/8.12.6) with ESMTP id k59IkOIs025751 for ; Fri, 9 Jun 2006 11:46:25 -0700 (PDT) Received: from xfe-rtp-202.amer.cisco.com ([64.102.31.21]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 14:46:24 -0400 Received: from [10.82.225.193] ([10.82.225.193]) by xfe-rtp-202.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 14:46:24 -0400 Message-ID: <4489C1FF.3040405@cisco.com> Date: Fri, 09 Jun 2006 14:46:23 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 CC: ospf@ietf.org Subject: Re: [OSPF] Re: OSPFv3: Vlink Instance Id References: <20060609094339.3691.qmail@webmail35.rediffmail.com> <4489B296.1010009@cisco.com> <4489BA55.40106@cisco.com> <4489BC22.6050300@cisco.com> In-Reply-To: <4489BC22.6050300@cisco.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Jun 2006 18:46:24.0535 (UTC) FILETIME=[021D2270:01C68BF5] DKIM-Signature: a=rsa-sha1; q=dns; l=5868; t=1149878785; x=1150742785; c=relaxed/simple; s=sjdkim6001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=acee@cisco.com; z=From:Acee=20Lindem=20 |Subject:Re=3A=20[OSPF]=20Re=3A=20OSPFv3=3A=20Vlink=20Instance=20Id; X=v=3Dcisco.com=3B=20h=3DilMMuxwrR6CwaLHAHH+9stYTyTs=3D; b=MKtOe9ksmXdL6sDK1vIf1HYLlaRGDrYt4eS0Y7zZm0TY2pdyZqwR1hvLVzu02CQQrUmTHUug mEIEIsfRdkJJB6htH7O33iJvziUfwAdK7iu2gH3mcD5ElP5Dwbt4RJYs; Authentication-Results: sj-dkim-6.cisco.com; header.From=acee@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: b8f3559805f7873076212d6f63ee803e X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Paul, Vivek, Here is the suggested text. Note that I also moved the local source address checking under OSPF processing to match the disucssion of support for multiple interfaces attached to the same link. Thanks, Acee Acee Lindem wrote: > Hi Paul, > > Paul Wells wrote: > >> Hi Acee, >> >> I think the problem is that we overload the term "instance". >> >> As I see it, the OSPFv3 instance ID is simply an attribute which is >> used to demux packets. It could just as well have been called >> something like "OSPFv3 channel ID". >> >> This is not the same thing as the concept of multiple independent >> instances of OSPF running on the same router. > > > I agree. The packet header term Instance ID is rather unfortunate but > I don't want to > change it now given that it is in everybody's ospfv3 packet format > header file :^) > I've tried to generalized the demux'ing without specifying the exact > implementation. > I'll post the text snipet for comment ahead of the -10 version. o The Area ID and Instance ID found in the OSPF header must be verified. If both of the following cases fail, the packet should be discarded. The Area ID and Instance ID specified in the header must either: 1. Match one of the Area ID(s) and Instance ID(s) for the receiving interface. Unlike IPv4, the IPv6 source address is not restricted to lie within the same IPv6 subnet as the receiving interface. IPv6 OSPF runs per-link instead of per- IP-subnet. 2. Match the backbone area and other criteria for a configured virtual link. The receiving router must be an ABR (Area Border Router) and the Router ID specified in the packet (the source router) must be the other end of a configured virtual link. Additionally, The receiving interface must attach to the virtual link's configured transit area and the Instance ID must match the virtual link's Instance ID. If all of these checks succeed, the packet is accepted and is from now on associated with the virtual link (and the backbone area). o Locally originated packets SHOULD NOT be processed by OSPF except for support of multiple interfaces attached to the same link as described in Section 3.9. Locally originated packets have a source address equal to one of the router's local addresses. Thanks, Acee > > Thanks, > Acee > > >> >> Regards, >> Paul >> >> Acee Lindem wrote: >> >>> Vivek Dubey wrote: >>> >>>> Hi Acee, >>>> >>>> Ospfv6 Draft 9 >>>> -------------- >>>> 3.2.2 Receiving protocol packets The Instance ID specified in the >>>> OSPF header must match the receiving interface's Instance ID >>>> >>>> Above check can than be done just after checking Ospf >>>> Version number being 3. >>>> >>>> >>> Hi Vivek, >>> >>> While the Instance ID can be used to allow the interface to be >>> configured >>> in multiple OSPFv3 instances, it can also be used to allow the >>> interface to >>> be configured in multiple areas in within the same OSPFv3 instance. >>> >>> I'll need to think more about updating the text. >>> >>> Thanks, >>> Acee >>> >>> >>>> Thanks >>>> Vivek >>>> >>>> >>>> >>>> On Thu, 08 Jun 2006 Acee Lindem wrote : >>>> >>>> >>>>> Hi Vivek, >>>>> Ok - I see what you mean. The text was suppose to reference >>>>> "Interface ID" rather than "Instance ID". I've corrected this and >>>>> moved >>>>> it in the -10 version. >>>>> >>>>> Thanks, >>>>> Acee >>>>> >>>>> Vivek Dubey wrote: >>>>> >>>>> >>>>> >>>>>> Hi Acee, >>>>>> >>>>>> Consider the topology: >>>>>> >>>>>> ---------(i0)R1(i1)------(i1)R2(i0)----------- >>>>>> >>>>>> Ospf Instance 1 configuration (Ospf-domain-1) >>>>>> ----------------------------------------------- >>>>>> Router R1: >>>>>> ---------- >>>>>> Interface i0: assocciated instance ID 1, Area 2.2.2.2 >>>>>> Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>>>> Vlink: Transit area 1.1.1.1, Nbr Rtr ID R2, ospfv3VirtIfInstId 2 >>>>>> >>>>>> >>>>>> Router R2: >>>>>> ---------- >>>>>> Interface i0: assocciated instance ID 1, Area 0.0.0.0 >>>>>> Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>>>> Vlink: Transit area 1.1.1.1, Nbr Rtr ID R1, ospfv3VirtIfInstId 2 >>>>>> >>>>>> Should this Vlink be made up, though the instance ID >>>>>> associated with Vlink is different than that of the physical >>>>>> interface, it would use. >>>>>> >>>>>> If VLink is declared up, it is part of Ospf-domain-2 >>>>>> while rest of the interfaces are part of Ospf-domain-1. What >>>>>> purpose such a Vlink is accomplishing ? >>>>>> >>>>>> MIB configuration for tables: >>>>>> Area Table >>>>>> Area-Scope LSDB >>>>>> AS-Scope LSDB >>>>>> Host Table >>>>>> Do not provide support for Ospf Multiple Instances >>>>>> >>>>>> But for few other table: >>>>>> Interface Table, >>>>>> Link Scope LSDB >>>>>> Explicit support of multiple instances is provided by making >>>>>> instance part of Index. >>>>>> >>>>>> SNMP Community string (RFC 4133) concept would be used for tables >>>>>> not having instance id as part of index? >>>>>> >>>>>> If so, why to make instance id as part of index for any table? >>>>>> >>>>>> Thanks >>>>>> Vivek >>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>> >>>> >>>> >>> >>> _______________________________________________ >>> OSPF mailing list >>> OSPF@ietf.org >>> https://www1.ietf.org/mailman/listinfo/ospf >> >> >> > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 09 17:06:31 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FooBW-0001FS-Up; Fri, 09 Jun 2006 17:06:26 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FooBV-0001FK-RG for ospf@ietf.org; Fri, 09 Jun 2006 17:06:25 -0400 Received: from sj-iport-5.cisco.com ([171.68.10.87]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FooBV-0007Yq-7d for ospf@ietf.org; Fri, 09 Jun 2006 17:06:25 -0400 Received: from sj-dkim-5.cisco.com ([171.68.10.79]) by sj-iport-5.cisco.com with ESMTP; 09 Jun 2006 14:06:24 -0700 X-IronPort-AV: i="4.05,224,1146466800"; d="scan'208"; a="292478933:sNHT195196894" Received: from sj-core-3.cisco.com (sj-core-3.cisco.com [171.68.223.137]) by sj-dkim-5.cisco.com (8.12.11/8.12.11) with ESMTP id k59L6OuG020983 for ; Fri, 9 Jun 2006 14:06:24 -0700 Received: from xbh-sjc-211.amer.cisco.com (xbh-sjc-211.cisco.com [171.70.151.144]) by sj-core-3.cisco.com (8.12.10/8.12.6) with ESMTP id k59L6OIs002305 for ; Fri, 9 Jun 2006 14:06:24 -0700 (PDT) Received: from xfe-sjc-212.amer.cisco.com ([171.70.151.187]) by xbh-sjc-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 14:06:24 -0700 Received: from [10.25.187.131] ([10.25.187.131]) by xfe-sjc-212.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 14:06:23 -0700 Message-ID: <4489E2CD.9000303@cisco.com> Date: Fri, 09 Jun 2006 16:06:21 -0500 From: Paul Wells User-Agent: Thunderbird 1.5.0.2 (X11/20060501) MIME-Version: 1.0 To: Acee Lindem Subject: Re: [OSPF] Re: OSPFv3: Vlink Instance Id References: <20060609094339.3691.qmail@webmail35.rediffmail.com> <4489B296.1010009@cisco.com> <4489BA55.40106@cisco.com> <4489BC22.6050300@cisco.com> <4489C1FF.3040405@cisco.com> In-Reply-To: <4489C1FF.3040405@cisco.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Jun 2006 21:06:23.0890 (UTC) FILETIME=[9084FF20:01C68C08] DKIM-Signature: a=rsa-sha1; q=dns; l=6579; t=1149887184; x=1150751184; c=relaxed/simple; s=sjdkim5001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=pauwells@cisco.com; z=From:Paul=20Wells=20 |Subject:Re=3A=20[OSPF]=20Re=3A=20OSPFv3=3A=20Vlink=20Instance=20Id; X=v=3Dcisco.com=3B=20h=3DSuOTz7KkAHA5v73bs8PuDnE4fXA=3D; b=sF7r4lADNVl/inUgMZaACaOoLr3Xtf6tZHF8MiO4VVrPJvgiyjgFCyDuHNDw+p3JrXp8ZCLv YKTNZyEshiHIvhbmTYhoil5BCF2M6lVWelkMqr9QCMAtFedO9+qSjcJw; Authentication-Results: sj-dkim-5.cisco.com; header.From=pauwells@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: 7268a2980febc47a9fa732aba2b737ba Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Acee, Acee Lindem wrote: > Paul, Vivek, > > Here is the suggested text. Note that I also moved > the local source address checking under OSPF processing to match the > disucssion of support for multiple interfaces attached to the same link. > > Thanks, > Acee > > Acee Lindem wrote: > >> Hi Paul, >> >> Paul Wells wrote: >> >>> Hi Acee, >>> >>> I think the problem is that we overload the term "instance". >>> >>> As I see it, the OSPFv3 instance ID is simply an attribute which is >>> used to demux packets. It could just as well have been called >>> something like "OSPFv3 channel ID". >>> >>> This is not the same thing as the concept of multiple independent >>> instances of OSPF running on the same router. >> >> >> I agree. The packet header term Instance ID is rather unfortunate but >> I don't want to >> change it now given that it is in everybody's ospfv3 packet format >> header file :^) >> I've tried to generalized the demux'ing without specifying the exact >> implementation. >> I'll post the text snipet for comment ahead of the -10 version. > > o The Area ID and Instance ID found in the OSPF header must be > verified. If both of the following cases fail, the packet should > be discarded. The Area ID and Instance ID specified in the header > must either: > > > 1. Match one of the Area ID(s) and Instance ID(s) for the > receiving interface. While I agree with the sentiment, can we really imply here that an interface can have multiple Area IDs and/or Instance IDs? Notwithstanding draft-ietf-ospf-multi-area-adj and draft-ietf-ospf-af-alt there are a number of other places in the existing RFCs that contradict this. Thanks, Paul > Unlike IPv4, the IPv6 source address is > not restricted to lie within the same IPv6 subnet as the > receiving interface. IPv6 OSPF runs per-link instead of per- > IP-subnet. > > 2. Match the backbone area and other criteria for a configured > virtual link. The receiving router must be an ABR (Area > Border Router) and the Router ID specified in the packet (the > source router) must be the other end of a configured virtual > link. Additionally, The receiving interface must attach to > the virtual link's configured transit area and the Instance ID > must match the virtual link's Instance ID. If all of these > checks succeed, the packet is accepted and is from now on > associated with the virtual link (and the backbone area). > > o Locally originated packets SHOULD NOT be processed by OSPF except > for support of multiple interfaces attached to the same link as > described in Section 3.9. Locally originated packets have a > source address equal to one of the router's local addresses. > > Thanks, > Acee > > >> >> Thanks, >> Acee >> >> >>> >>> Regards, >>> Paul >>> >>> Acee Lindem wrote: >>> >>>> Vivek Dubey wrote: >>>> >>>>> Hi Acee, >>>>> >>>>> Ospfv6 Draft 9 >>>>> -------------- >>>>> 3.2.2 Receiving protocol packets The Instance ID specified in the >>>>> OSPF header must match the receiving interface's Instance ID >>>>> >>>>> Above check can than be done just after checking Ospf >>>>> Version number being 3. >>>>> >>>>> >>>> Hi Vivek, >>>> >>>> While the Instance ID can be used to allow the interface to be >>>> configured >>>> in multiple OSPFv3 instances, it can also be used to allow the >>>> interface to >>>> be configured in multiple areas in within the same OSPFv3 instance. >>>> >>>> I'll need to think more about updating the text. >>>> >>>> Thanks, >>>> Acee >>>> >>>> >>>>> Thanks >>>>> Vivek >>>>> >>>>> >>>>> >>>>> On Thu, 08 Jun 2006 Acee Lindem wrote : >>>>> >>>>> >>>>>> Hi Vivek, >>>>>> Ok - I see what you mean. The text was suppose to reference >>>>>> "Interface ID" rather than "Instance ID". I've corrected this and >>>>>> moved >>>>>> it in the -10 version. >>>>>> >>>>>> Thanks, >>>>>> Acee >>>>>> >>>>>> Vivek Dubey wrote: >>>>>> >>>>>> >>>>>> >>>>>>> Hi Acee, >>>>>>> >>>>>>> Consider the topology: >>>>>>> >>>>>>> ---------(i0)R1(i1)------(i1)R2(i0)----------- >>>>>>> >>>>>>> Ospf Instance 1 configuration (Ospf-domain-1) >>>>>>> ----------------------------------------------- >>>>>>> Router R1: >>>>>>> ---------- >>>>>>> Interface i0: assocciated instance ID 1, Area 2.2.2.2 >>>>>>> Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>>>>> Vlink: Transit area 1.1.1.1, Nbr Rtr ID R2, ospfv3VirtIfInstId 2 >>>>>>> >>>>>>> >>>>>>> Router R2: >>>>>>> ---------- >>>>>>> Interface i0: assocciated instance ID 1, Area 0.0.0.0 >>>>>>> Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>>>>> Vlink: Transit area 1.1.1.1, Nbr Rtr ID R1, ospfv3VirtIfInstId 2 >>>>>>> >>>>>>> Should this Vlink be made up, though the instance ID >>>>>>> associated with Vlink is different than that of the physical >>>>>>> interface, it would use. >>>>>>> >>>>>>> If VLink is declared up, it is part of Ospf-domain-2 >>>>>>> while rest of the interfaces are part of Ospf-domain-1. What >>>>>>> purpose such a Vlink is accomplishing ? >>>>>>> >>>>>>> MIB configuration for tables: >>>>>>> Area Table >>>>>>> Area-Scope LSDB >>>>>>> AS-Scope LSDB >>>>>>> Host Table >>>>>>> Do not provide support for Ospf Multiple Instances >>>>>>> >>>>>>> But for few other table: >>>>>>> Interface Table, >>>>>>> Link Scope LSDB >>>>>>> Explicit support of multiple instances is provided by making >>>>>>> instance part of Index. >>>>>>> >>>>>>> SNMP Community string (RFC 4133) concept would be used for tables >>>>>>> not having instance id as part of index? >>>>>>> >>>>>>> If so, why to make instance id as part of index for any table? >>>>>>> >>>>>>> Thanks >>>>>>> Vivek >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>>> >>>> >>>> _______________________________________________ >>>> OSPF mailing list >>>> OSPF@ietf.org >>>> https://www1.ietf.org/mailman/listinfo/ospf >>> >>> >>> >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 09 17:20:37 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FooPE-0001m2-TK; Fri, 09 Jun 2006 17:20:36 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FooPD-0001lx-CV for ospf@ietf.org; Fri, 09 Jun 2006 17:20:35 -0400 Received: from rtp-iport-1.cisco.com ([64.102.122.148]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FooPC-0008Lt-T8 for ospf@ietf.org; Fri, 09 Jun 2006 17:20:35 -0400 Received: from rtp-core-1.cisco.com ([64.102.124.12]) by rtp-iport-1.cisco.com with ESMTP; 09 Jun 2006 14:20:34 -0700 X-BrightmailFiltered: true X-Brightmail-Tracker: AAAAAA== X-IronPort-AV: i="4.05,224,1146466800"; d="scan'208"; a="29164318:sNHT25298516" Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by rtp-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k59LKYYL002759 for ; Fri, 9 Jun 2006 17:20:34 -0400 (EDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 17:20:34 -0400 Received: from [10.82.225.193] ([10.82.225.193]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 17:20:33 -0400 Message-ID: <4489E621.601@cisco.com> Date: Fri, 09 Jun 2006 17:20:33 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Paul Wells Subject: Re: [OSPF] Re: OSPFv3: Vlink Instance Id References: <20060609094339.3691.qmail@webmail35.rediffmail.com> <4489B296.1010009@cisco.com> <4489BA55.40106@cisco.com> <4489BC22.6050300@cisco.com> <4489C1FF.3040405@cisco.com> <4489E2CD.9000303@cisco.com> In-Reply-To: <4489E2CD.9000303@cisco.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Jun 2006 21:20:33.0816 (UTC) FILETIME=[8B1D6980:01C68C0A] X-Spam-Score: 0.0 (/) X-Scan-Signature: 6a45e05c1e4343200aa6b327df2c43fc Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Paul, Paul Wells wrote: > Hi Acee, > > Acee Lindem wrote: > >> Paul, Vivek, >> >> Here is the suggested text. Note that I also moved >> the local source address checking under OSPF processing to match the >> disucssion of support for multiple interfaces attached to the same link. >> >> Thanks, >> Acee >> >> Acee Lindem wrote: >> >>> Hi Paul, >>> >>> Paul Wells wrote: >>> >>>> Hi Acee, >>>> >>>> I think the problem is that we overload the term "instance". >>>> >>>> As I see it, the OSPFv3 instance ID is simply an attribute which is >>>> used to demux packets. It could just as well have been called >>>> something like "OSPFv3 channel ID". >>>> >>>> This is not the same thing as the concept of multiple independent >>>> instances of OSPF running on the same router. >>> >>> >>> >>> I agree. The packet header term Instance ID is rather unfortunate >>> but I don't want to >>> change it now given that it is in everybody's ospfv3 packet format >>> header file :^) >>> I've tried to generalized the demux'ing without specifying the exact >>> implementation. >>> I'll post the text snipet for comment ahead of the -10 version. >> >> >> o The Area ID and Instance ID found in the OSPF header must be >> verified. If both of the following cases fail, the packet should >> be discarded. The Area ID and Instance ID specified in the header >> must either: >> >> >> 1. Match one of the Area ID(s) and Instance ID(s) for the >> receiving interface. > > > While I agree with the sentiment, can we really imply here that an > interface can have multiple Area IDs and/or Instance IDs? > Notwithstanding draft-ietf-ospf-multi-area-adj and > draft-ietf-ospf-af-alt there are a number of other places in the > existing RFCs that contradict this. I think this was one (if not the primary) motivation for the OSPFv3 interface instance ID. I realize not all implementations support it but I know of at least one that does. If I remember correctly, there is also some additional code (I mean text) that needs to be added to the section on intra-area prefix LSAs. Thanks, Acee > > Thanks, > Paul > >> Unlike IPv4, the IPv6 source address is >> not restricted to lie within the same IPv6 subnet as the >> receiving interface. IPv6 OSPF runs per-link instead of per- >> IP-subnet. >> >> 2. Match the backbone area and other criteria for a configured >> virtual link. The receiving router must be an ABR (Area >> Border Router) and the Router ID specified in the packet (the >> source router) must be the other end of a configured virtual >> link. Additionally, The receiving interface must attach to >> the virtual link's configured transit area and the Instance ID >> must match the virtual link's Instance ID. If all of these >> checks succeed, the packet is accepted and is from now on >> associated with the virtual link (and the backbone area). >> >> o Locally originated packets SHOULD NOT be processed by OSPF except >> for support of multiple interfaces attached to the same link as >> described in Section 3.9. Locally originated packets have a >> source address equal to one of the router's local addresses. >> >> Thanks, >> Acee >> >> >>> >>> Thanks, >>> Acee >>> >>> >>>> >>>> Regards, >>>> Paul >>>> >>>> Acee Lindem wrote: >>>> >>>>> Vivek Dubey wrote: >>>>> >>>>>> Hi Acee, >>>>>> >>>>>> Ospfv6 Draft 9 >>>>>> -------------- >>>>>> 3.2.2 Receiving protocol packets The Instance ID specified in >>>>>> the OSPF header must match the receiving interface's Instance ID >>>>>> >>>>>> Above check can than be done just after checking Ospf >>>>>> Version number being 3. >>>>>> >>>>>> >>>>> Hi Vivek, >>>>> >>>>> While the Instance ID can be used to allow the interface to be >>>>> configured >>>>> in multiple OSPFv3 instances, it can also be used to allow the >>>>> interface to >>>>> be configured in multiple areas in within the same OSPFv3 instance. >>>>> >>>>> I'll need to think more about updating the text. >>>>> >>>>> Thanks, >>>>> Acee >>>>> >>>>> >>>>>> Thanks >>>>>> Vivek >>>>>> >>>>>> >>>>>> >>>>>> On Thu, 08 Jun 2006 Acee Lindem wrote : >>>>>> >>>>>> >>>>>>> Hi Vivek, >>>>>>> Ok - I see what you mean. The text was suppose to reference >>>>>>> "Interface ID" rather than "Instance ID". I've corrected this >>>>>>> and moved >>>>>>> it in the -10 version. >>>>>>> >>>>>>> Thanks, >>>>>>> Acee >>>>>>> >>>>>>> Vivek Dubey wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>>> Hi Acee, >>>>>>>> >>>>>>>> Consider the topology: >>>>>>>> >>>>>>>> ---------(i0)R1(i1)------(i1)R2(i0)----------- >>>>>>>> >>>>>>>> Ospf Instance 1 configuration (Ospf-domain-1) >>>>>>>> ----------------------------------------------- >>>>>>>> Router R1: >>>>>>>> ---------- >>>>>>>> Interface i0: assocciated instance ID 1, Area 2.2.2.2 >>>>>>>> Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>>>>>> Vlink: Transit area 1.1.1.1, Nbr Rtr ID R2, ospfv3VirtIfInstId 2 >>>>>>>> >>>>>>>> >>>>>>>> Router R2: >>>>>>>> ---------- >>>>>>>> Interface i0: assocciated instance ID 1, Area 0.0.0.0 >>>>>>>> Interface i1: assocciated instance ID 1, Area 1.1.1.1 >>>>>>>> Vlink: Transit area 1.1.1.1, Nbr Rtr ID R1, ospfv3VirtIfInstId 2 >>>>>>>> >>>>>>>> Should this Vlink be made up, though the instance ID >>>>>>>> associated with Vlink is different than that of the physical >>>>>>>> interface, it would use. >>>>>>>> >>>>>>>> If VLink is declared up, it is part of Ospf-domain-2 >>>>>>>> while rest of the interfaces are part of Ospf-domain-1. What >>>>>>>> purpose such a Vlink is accomplishing ? >>>>>>>> >>>>>>>> MIB configuration for tables: >>>>>>>> Area Table >>>>>>>> Area-Scope LSDB >>>>>>>> AS-Scope LSDB >>>>>>>> Host Table >>>>>>>> Do not provide support for Ospf Multiple Instances >>>>>>>> >>>>>>>> But for few other table: >>>>>>>> Interface Table, >>>>>>>> Link Scope LSDB >>>>>>>> Explicit support of multiple instances is provided by making >>>>>>>> instance part of Index. >>>>>>>> >>>>>>>> SNMP Community string (RFC 4133) concept would be used for >>>>>>>> tables not having instance id as part of index? >>>>>>>> >>>>>>>> If so, why to make instance id as part of index for any table? >>>>>>>> >>>>>>>> Thanks >>>>>>>> Vivek >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>>> _______________________________________________ >>>>> OSPF mailing list >>>>> OSPF@ietf.org >>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>> >>>> >>>> >>>> >>> >>> _______________________________________________ >>> OSPF mailing list >>> OSPF@ietf.org >>> https://www1.ietf.org/mailman/listinfo/ospf >>> >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 09 18:23:44 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FopOE-0006eS-LG; Fri, 09 Jun 2006 18:23:38 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FopOD-0006eK-AK for ospf@ietf.org; Fri, 09 Jun 2006 18:23:37 -0400 Received: from sj-iport-4.cisco.com ([171.68.10.86]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FopOA-0007Og-VO for ospf@ietf.org; Fri, 09 Jun 2006 18:23:37 -0400 Received: from sj-dkim-7.cisco.com ([171.68.10.88]) by sj-iport-4.cisco.com with ESMTP; 09 Jun 2006 15:23:34 -0700 X-IronPort-AV: i="4.05,225,1146466800"; d="scan'208"; a="1823167490:sNHT32578372" Received: from sj-core-3.cisco.com (sj-core-3.cisco.com [171.68.223.137]) by sj-dkim-7.cisco.com (8.12.11/8.12.11) with ESMTP id k59MNYmR010336 for ; Fri, 9 Jun 2006 15:23:34 -0700 Received: from xbh-sjc-221.amer.cisco.com (xbh-sjc-221.cisco.com [128.107.191.63]) by sj-core-3.cisco.com (8.12.10/8.12.6) with ESMTP id k59MNYIs001246 for ; Fri, 9 Jun 2006 15:23:34 -0700 (PDT) Received: from xfe-sjc-211.amer.cisco.com ([171.70.151.174]) by xbh-sjc-221.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 15:23:34 -0700 Received: from [10.25.187.131] ([10.25.187.131]) by xfe-sjc-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 15:23:32 -0700 Message-ID: <4489F4E2.3080204@cisco.com> Date: Fri, 09 Jun 2006 17:23:30 -0500 From: Paul Wells User-Agent: Thunderbird 1.5.0.2 (X11/20060501) MIME-Version: 1.0 To: Acee Lindem Subject: Re: [OSPF] Re: OSPFv3: Vlink Instance Id References: <20060609094339.3691.qmail@webmail35.rediffmail.com> <4489B296.1010009@cisco.com> <4489BA55.40106@cisco.com> <4489BC22.6050300@cisco.com> <4489C1FF.3040405@cisco.com> <4489E2CD.9000303@cisco.com> <4489E621.601@cisco.com> In-Reply-To: <4489E621.601@cisco.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Jun 2006 22:23:33.0992 (UTC) FILETIME=[58467E80:01C68C13] DKIM-Signature: a=rsa-sha1; q=dns; l=3068; t=1149891814; x=1150755814; c=relaxed/simple; s=sjdkim7001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=pauwells@cisco.com; z=From:Paul=20Wells=20 |Subject:Re=3A=20[OSPF]=20Re=3A=20OSPFv3=3A=20Vlink=20Instance=20Id; X=v=3Dcisco.com=3B=20h=3DSuOTz7KkAHA5v73bs8PuDnE4fXA=3D; b=ZWbmo1TP0ZwV8s13rqcfopmS02AeNTPqwaTVXWO1AGTjCWR6YdnaN+YT6uD4o2A4oGLrx6RC IfNeMseA1CDt8LXToLC5jcoGkj+FX4HDZBlRzGLw3jvprRRVZtzZhtWc; Authentication-Results: sj-dkim-7.cisco.com; header.From=pauwells@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: 10d3e4e3c32e363f129e380e644649be Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Acee, Acee Lindem wrote: > Hi Paul, > > Paul Wells wrote: > >> Hi Acee, >> >> Acee Lindem wrote: >> >>> Paul, Vivek, >>> >>> Here is the suggested text. Note that I also moved >>> the local source address checking under OSPF processing to match the >>> disucssion of support for multiple interfaces attached to the same link. >>> >>> Thanks, >>> Acee >>> >>> >>> o The Area ID and Instance ID found in the OSPF header must be >>> verified. If both of the following cases fail, the packet should >>> be discarded. The Area ID and Instance ID specified in the header >>> must either: >>> >>> >>> 1. Match one of the Area ID(s) and Instance ID(s) for the >>> receiving interface. >> >> >> While I agree with the sentiment, can we really imply here that an >> interface can have multiple Area IDs and/or Instance IDs? >> Notwithstanding draft-ietf-ospf-multi-area-adj and >> draft-ietf-ospf-af-alt there are a number of other places in the >> existing RFCs that contradict this. > > I think this was one (if not the primary) motivation for the OSPFv3 > interface instance ID. I realize not all implementations support it but I > know of at least one that does. If I remember correctly, there is also > some additional code (I mean text) that needs to be added to the section > on intra-area prefix LSAs. Are we talking about "physical" interfaces or interfaces as defined by an OSPF interface structure? As it happens, I wrote the packet input code for an implementation that allows multiple OSPFv3 instances to share a physical interface, however in that case each OSPFv3 instance has it's own interface structure with a single instance ID value. Thanks, Paul > > Thanks, > Acee > > >> >> Thanks, >> Paul >> >>> Unlike IPv4, the IPv6 source address is >>> not restricted to lie within the same IPv6 subnet as the >>> receiving interface. IPv6 OSPF runs per-link instead of per- >>> IP-subnet. >>> >>> 2. Match the backbone area and other criteria for a configured >>> virtual link. The receiving router must be an ABR (Area >>> Border Router) and the Router ID specified in the packet (the >>> source router) must be the other end of a configured virtual >>> link. Additionally, The receiving interface must attach to >>> the virtual link's configured transit area and the Instance ID >>> must match the virtual link's Instance ID. If all of these >>> checks succeed, the packet is accepted and is from now on >>> associated with the virtual link (and the backbone area). >>> >>> o Locally originated packets SHOULD NOT be processed by OSPF except >>> for support of multiple interfaces attached to the same link as >>> described in Section 3.9. Locally originated packets have a >>> source address equal to one of the router's local addresses. >>> >>> Thanks, >>> Acee _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 09 18:38:28 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FopcY-0004Ho-SQ; Fri, 09 Jun 2006 18:38:26 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FopcX-0004Hj-C2 for ospf@ietf.org; Fri, 09 Jun 2006 18:38:25 -0400 Received: from rtp-iport-2.cisco.com ([64.102.122.149]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FopcW-0000iq-3O for ospf@ietf.org; Fri, 09 Jun 2006 18:38:25 -0400 Received: from rtp-core-2.cisco.com ([64.102.124.13]) by rtp-iport-2.cisco.com with ESMTP; 09 Jun 2006 18:38:24 -0400 X-IronPort-AV: i="4.05,225,1146456000"; d="scan'208"; a="89705337:sNHT32406108" Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id k59McNno020804 for ; Fri, 9 Jun 2006 18:38:23 -0400 (EDT) Received: from xfe-rtp-202.amer.cisco.com ([64.102.31.21]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 18:38:23 -0400 Received: from [10.82.225.193] ([10.82.225.193]) by xfe-rtp-202.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 9 Jun 2006 18:38:23 -0400 Message-ID: <4489F85E.9090406@cisco.com> Date: Fri, 09 Jun 2006 18:38:22 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Paul Wells Subject: Re: [OSPF] Re: OSPFv3: Vlink Instance Id References: <20060609094339.3691.qmail@webmail35.rediffmail.com> <4489B296.1010009@cisco.com> <4489BA55.40106@cisco.com> <4489BC22.6050300@cisco.com> <4489C1FF.3040405@cisco.com> <4489E2CD.9000303@cisco.com> <4489E621.601@cisco.com> <4489F4E2.3080204@cisco.com> In-Reply-To: <4489F4E2.3080204@cisco.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Jun 2006 22:38:23.0464 (UTC) FILETIME=[6A712680:01C68C15] X-Spam-Score: 0.0 (/) X-Scan-Signature: 6d95a152022472c7d6cdf886a0424dc6 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Paul, Paul Wells wrote: > Hi Acee, > > Acee Lindem wrote: > >> Hi Paul, >> >> Paul Wells wrote: >> >>> Hi Acee, >>> >>> Acee Lindem wrote: >>> >>>> Paul, Vivek, >>>> >>>> Here is the suggested text. Note that I also moved >>>> the local source address checking under OSPF processing to match the >>>> disucssion of support for multiple interfaces attached to the same >>>> link. >>>> >>>> Thanks, >>>> Acee >>> > > > >>>> >>>> >>>> o The Area ID and Instance ID found in the OSPF header must be >>>> verified. If both of the following cases fail, the packet should >>>> be discarded. The Area ID and Instance ID specified in the >>>> header >>>> must either: >>>> >>>> >>>> 1. Match one of the Area ID(s) and Instance ID(s) for the >>>> receiving interface. >>> >>> >>> >>> While I agree with the sentiment, can we really imply here that an >>> interface can have multiple Area IDs and/or Instance IDs? >>> Notwithstanding draft-ietf-ospf-multi-area-adj and >>> draft-ietf-ospf-af-alt there are a number of other places in the >>> existing RFCs that contradict this. >> >> >> I think this was one (if not the primary) motivation for the OSPFv3 >> interface instance ID. I realize not all implementations support it >> but I >> know of at least one that does. If I remember correctly, there is also >> some additional code (I mean text) that needs to be added to the section >> on intra-area prefix LSAs. > > > Are we talking about "physical" interfaces or interfaces as defined by > an OSPF interface structure? As it happens, I wrote the packet input > code for an implementation that allows multiple OSPFv3 instances to > share a physical interface, however in that case each OSPFv3 instance > has it's own interface structure with a single instance ID value. Ok - I see your point but it is semantics rather than functionality. I mean physical interface. I think if I change the text to say "receiving link" it should be clear. Thanks, > > Thanks, > Paul > >> >> Thanks, >> Acee >> >> >>> >>> Thanks, >>> Paul >>> >>>> Unlike IPv4, the IPv6 source address is >>>> not restricted to lie within the same IPv6 subnet as the >>>> receiving interface. IPv6 OSPF runs per-link instead of per- >>>> IP-subnet. >>>> >>>> 2. Match the backbone area and other criteria for a configured >>>> virtual link. The receiving router must be an ABR (Area >>>> Border Router) and the Router ID specified in the packet (the >>>> source router) must be the other end of a configured virtual >>>> link. Additionally, The receiving interface must attach to >>>> the virtual link's configured transit area and the >>>> Instance ID >>>> must match the virtual link's Instance ID. If all of these >>>> checks succeed, the packet is accepted and is from now on >>>> associated with the virtual link (and the backbone area). >>>> >>>> o Locally originated packets SHOULD NOT be processed by OSPF except >>>> for support of multiple interfaces attached to the same link as >>>> described in Section 3.9. Locally originated packets have a >>>> source address equal to one of the router's local addresses. >>>> >>>> Thanks, >>>> Acee >>> > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Tue Jun 13 05:31:08 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fq5Eg-0001yU-8v; Tue, 13 Jun 2006 05:30:58 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fq5Ee-0001yJ-Ef for ospf@ietf.org; Tue, 13 Jun 2006 05:30:56 -0400 Received: from smtp1.mail.atosorigin.com ([160.92.103.80]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Fq5Ed-00044l-0U for ospf@ietf.org; Tue, 13 Jun 2006 05:30:56 -0400 Received: from AOFR11476 (localhost [127.0.0.1]) by mwumf0102.mail.fr.ww.atosorigin.com (Postfix) with ESMTP id 3885A1C000BB for ; Tue, 13 Jun 2006 11:30:54 +0200 (CEST) Message-ID: <001f01c68ecc$022660e0$2d600337@AOFR11476> From: "fabien.verhaeghe" To: Date: Tue, 13 Jun 2006 11:30:27 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 X-Spam-Score: 0.1 (/) X-Scan-Signature: 36c793b20164cfe75332aa66ddb21196 Subject: [OSPF] Link LSA generation in OSPFv3 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0965239389==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============0965239389== Content-Type: multipart/alternative; boundary="----=_NextPart_000_001C_01C68EDC.C5203750" This is a multi-part message in MIME format. ------=_NextPart_000_001C_01C68EDC.C5203750 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello All, >From draft-ietf-ospf-ospfv3-update-09.txt section 3.4.3.6 "A router = originates a separate link-LSA for each attached link that supports 2 or more (including the = originating router itself) routers" I understand that a router originates a link LSA only if it has at least = one fully adjacent neighbor. But in section 3.4.3 the link-lsa is note mentionned in the item: o A neighbor transitions to/from "Full" state. The router may need to (re)originate or flush the link's network-LSA and one or more router-LSAs and/or intra-area-prefix-LSAs. Instead it is put in the first item about interface state change. o The state or interface ID of one of the router's interfaces changes. The router may need to (re)originate or flush its link- LSA and one or more router-LSAs and/or intra-area-prefix-LSAs. If the router is DR, the router may also need to (re)originate and/or flush the network LSA corresponding to the interface. Does this mean link LSA has to be originate when the interface is up and = not when a first full neighbor appears? Another point concerning network LSA origination. Shouldn't we have an = item stating that network LSA may be re-originated upon receipt (or purged) of a link-LSA = because it may=20 entail a change in the option field. Thanks Fabien Verhaeghe Atos Origin ------=_NextPart_000_001C_01C68EDC.C5203750 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hello All,
 
From = draft-ietf-ospf-ospfv3-update-09.txt section=20 3.4.3.6 "A router originates a separate link-LSA
for each attached link that supports 2 = or more=20 (including the originating router itself) routers"
I understand that a router originates a = link LSA=20 only if it has at least one fully adjacent neighbor.
 
But in section 3.4.3 the link-lsa is = note=20 mentionned in the item:
 
   o  A neighbor = transitions to/from=20 "Full" state.  The router may = need
      to=20 (re)originate or flush the link's network-LSA and one or=20 more
      router-LSAs and/or=20 intra-area-prefix-LSAs.
 
Instead it is put in the first item = about interface=20 state change.

   o  The state or = interface ID=20 of one of the router's interfaces
     =20 changes.  The router may need to (re)originate or flush its=20 link-
      LSA and one or more router-LSAs = and/or=20 intra-area-prefix-LSAs.  If
      the = router is=20 DR, the router may also need to (re)originate=20 and/or
      flush the network LSA = corresponding to=20 the interface.
 
Does this mean link LSA has to be originate when the interface is = up and=20 not when a
first full neighbor appears?
 
Another point concerning network LSA origination. Shouldn't we have = an item=20 stating that
network LSA may be re-originated upon receipt (or purged) of a = link-LSA=20 because it may
entail a change in the option field.
 
Thanks
Fabien Verhaeghe
Atos Origin 
------=_NextPart_000_001C_01C68EDC.C5203750-- --===============0965239389== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============0965239389==-- From ospf-bounces@ietf.org Tue Jun 13 05:59:06 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fq5ft-0006LD-5M; Tue, 13 Jun 2006 05:59:05 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fq5fs-0006L8-7D for ospf@ietf.org; Tue, 13 Jun 2006 05:59:04 -0400 Received: from szxga03-in.huawei.com ([61.144.161.55] helo=huawei.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Fq5fo-0007Q2-QS for ospf@ietf.org; Tue, 13 Jun 2006 05:59:04 -0400 Received: from huawei.com (szxga03-in [172.24.2.9]) by szxga03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J0S001ABMAHPZ@szxga03-in.huawei.com> for ospf@ietf.org; Tue, 13 Jun 2006 17:56:41 +0800 (CST) Received: from huawei.com ([172.24.1.24]) by szxga03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J0S002INMAHCQ@szxga03-in.huawei.com> for ospf@ietf.org; Tue, 13 Jun 2006 17:56:41 +0800 (CST) Received: from k49110 ([10.110.114.150]) by szxml04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J0S00J49MCXFN@szxml04-in.huawei.com> for ospf@ietf.org; Tue, 13 Jun 2006 17:58:09 +0800 (CST) Date: Tue, 13 Jun 2006 17:47:34 +0800 From: Zengjie Kou To: ospf@ietf.org Message-id: <00a901c68ece$65b73330$96726e0a@china.huawei.com> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Mailer: Microsoft Outlook Express 6.00.2900.2180 Content-type: text/plain; charset=gb2312 Content-transfer-encoding: 7BIT X-Priority: 3 X-MSMail-priority: Normal X-Spam-Score: 0.0 (/) X-Scan-Signature: 7a6398bf8aaeabc7a7bb696b6b0a2aad Subject: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org hi,all I updated the draft "draft-kou-ospf-immediately-replying-hello-00.txt". The link is following: http://tools.ietf.org/wg/ospf/draft-kou-ospf-immediately-replying-hello-01.txt In the new version, interoperation of immediate hello is added and the additional immediate hello traffic is avoided by auto configuration. The abstract is following: This memo documents an extension of the OSPF protocol to reach "ExStart" state more quickly. Currently, the OSPF behavior requires the Hello Packet to be sent between the neighbors every HelloInterval. This document proposes to generalize the use of Immediately Replying Hello which could reduce the time required to reach the OSPF "ExStart" state and expedite the routing table convergence. _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Tue Jun 13 06:23:59 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fq63y-0000aj-DL; Tue, 13 Jun 2006 06:23:58 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fq63w-0000ae-JG for ospf@ietf.org; Tue, 13 Jun 2006 06:23:56 -0400 Received: from motgate8.mot.com ([129.188.136.8]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Fq63r-0001Ga-8H for ospf@ietf.org; Tue, 13 Jun 2006 06:23:56 -0400 Received: from il06exr02.mot.com (il06exr02.mot.com [129.188.137.132]) by motgate8.mot.com (8.12.11/Motgate7) with ESMTP id k5DANpsD029060 for ; Tue, 13 Jun 2006 03:23:51 -0700 (MST) Received: from ZMY16EXM66.ds.mot.com (zmy16exm66.ap.mot.com [10.179.4.26]) by il06exr02.mot.com (8.13.1/8.13.0) with ESMTP id k5DANnNU027955 for ; Tue, 13 Jun 2006 05:23:50 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Tue, 13 Jun 2006 18:23:40 +0800 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [REPOSTING] OSPFv3 MIB: InterfaceID in Vlink Thread-Index: AcaKE4SYyZFO/b6RQEuZbN2XPAuRoQEvzr4w From: "Ramana Koppula-G20085" To: X-Brightmail-Tracker: AAAAAQAAAAQ= X-White-List-Member: TRUE X-Spam-Score: 0.0 (/) X-Scan-Signature: 10d3e4e3c32e363f129e380e644649be Cc: vishwas@sinett.com Subject: [OSPF] [REPOSTING] OSPFv3 MIB: InterfaceID in Vlink X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1153798682==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============1153798682== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C68ED3.75AC4DA4" This is a multi-part message in MIME format. ------_=_NextPart_001_01C68ED3.75AC4DA4 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I am eagerly waiting for some comments, whether its valid to keep a read-only or is there any issue if we make it read-only. =20 hi, =20 Doubt: When Interface ID for normal interfaces is not made configurable, why is Virtual Link's Interface ID made configurable in Virtual Interface Table? =20 As Virtual Interface's Interface ID need to be unique amongst all the Interface IDs within the router, the administrator had to check what all interface IDs are in use at present and make a selection. All this is not unavoidable. =20 I feel it would be better if we make it read-only object and leave the selection of it to implementation. =20 thanx ramana ------_=_NextPart_001_01C68ED3.75AC4DA4 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
I am eagerly waiting for some comments, whether its = valid to=20 keep a read-only or is there any issue if we make it=20 read-only.
 
hi,
 
Doubt: = When=20 Interface ID for normal interfaces is not made configurable, why is = Virtual=20 Link's Interface ID made configurable in Virtual Interface=20 Table?
 
As = Virtual=20 Interface's Interface ID need to be unique amongst all the Interface IDs = within=20 the router, the administrator had to check what all interface IDs are in = use at=20 present and make a selection. All this is not = unavoidable.
 
I feel = it would be=20 better if we make it read-only object and leave the selection of it to=20 implementation.
 
thanx
ramana
------_=_NextPart_001_01C68ED3.75AC4DA4-- --===============1153798682== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============1153798682==-- From ospf-bounces@ietf.org Tue Jun 13 06:59:27 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fq6cD-0006Qc-Va; Tue, 13 Jun 2006 06:59:21 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fq6cC-0006QS-PP for ospf@ietf.org; Tue, 13 Jun 2006 06:59:20 -0400 Received: from motgate5.mot.com ([144.189.100.105]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Fq6cB-0004kx-B2 for ospf@ietf.org; Tue, 13 Jun 2006 06:59:20 -0400 Received: from az33exr03.mot.com (az33exr03.mot.com [10.64.251.233]) by motgate5.mot.com (8.12.11/Motgate5) with ESMTP id k5DAxEmi024075 for ; Tue, 13 Jun 2006 03:59:18 -0700 (MST) Received: from ZMY16EXM66.ds.mot.com (zmy16exm66.ap.mot.com [10.179.4.26]) by az33exr03.mot.com (8.13.1/8.13.0) with ESMTP id k5DAxBg2012538 for ; Tue, 13 Jun 2006 05:59:13 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: RE: [OSPF] Link LSA generation in OSPFv3 Date: Tue, 13 Jun 2006 18:59:04 +0800 Message-ID: <988EE2C769AC284ABAE9328BFC10703FCAEA79@ZMY16EXM66.ds.mot.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [OSPF] Link LSA generation in OSPFv3 Thread-Index: AcaOzCmqAUHSLTSXRNeXi9AxVFjeDAAC389Q From: "Khan Amir-G20247" To: "fabien.verhaeghe" , X-Brightmail-Tracker: AAAAAQAAAAQ= X-White-List-Member: TRUE X-Spam-Score: 0.1 (/) X-Scan-Signature: 7e439b86d3292ef5adf93b694a43a576 Cc: X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1861009336==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============1861009336== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C68ED8.66AE2504" This is a multi-part message in MIME format. ------_=_NextPart_001_01C68ED8.66AE2504 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Fabien =20 As per my understanding Link LSA can be originated when any of the NBR on the link reaches TWO-WAY state.=20 =20 Regards Aamir =20 ________________________________ From: fabien.verhaeghe [mailto:fabien.verhaeghe@atosorigin.com]=20 Sent: Tuesday, June 13, 2006 3:00 PM To: ospf@ietf.org Subject: [OSPF] Link LSA generation in OSPFv3 Hello All, =20 >From draft-ietf-ospf-ospfv3-update-09.txt section 3.4.3.6 "A router originates a separate link-LSA for each attached link that supports 2 or more (including the originating router itself) routers" I understand that a router originates a link LSA only if it has at least one fully adjacent neighbor. =20 But in section 3.4.3 the link-lsa is note mentionned in the item: =20 o A neighbor transitions to/from "Full" state. The router may need to (re)originate or flush the link's network-LSA and one or more router-LSAs and/or intra-area-prefix-LSAs. =20 Instead it is put in the first item about interface state change. o The state or interface ID of one of the router's interfaces changes. The router may need to (re)originate or flush its link- LSA and one or more router-LSAs and/or intra-area-prefix-LSAs. If the router is DR, the router may also need to (re)originate and/or flush the network LSA corresponding to the interface. =20 Does this mean link LSA has to be originate when the interface is up and not when a first full neighbor appears? =20 Another point concerning network LSA origination. Shouldn't we have an item stating that network LSA may be re-originated upon receipt (or purged) of a link-LSA because it may=20 entail a change in the option field. =20 Thanks Fabien Verhaeghe Atos Origin=20 ------_=_NextPart_001_01C68ED8.66AE2504 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Hi = Fabien
 
As per my understanding = Link=20 LSA can be originated when any of the NBR on the=20 link reaches TWO-WAY state.
 
Regards
Aamir
 


From: fabien.verhaeghe=20 [mailto:fabien.verhaeghe@atosorigin.com]
Sent: Tuesday, June = 13, 2006=20 3:00 PM
To: ospf@ietf.org
Subject: [OSPF] Link LSA=20 generation in OSPFv3

Hello All,
 
From = draft-ietf-ospf-ospfv3-update-09.txt section=20 3.4.3.6 "A router originates a separate link-LSA
for each attached link that supports 2 = or more=20 (including the originating router itself) routers"
I understand that a router originates a = link LSA=20 only if it has at least one fully adjacent neighbor.
 
But in section 3.4.3 the link-lsa is = note=20 mentionned in the item:
 
   o  A neighbor = transitions to/from=20 "Full" state.  The router may = need
      to=20 (re)originate or flush the link's network-LSA and one or=20 more
      router-LSAs and/or=20 intra-area-prefix-LSAs.
 
Instead it is put in the first item = about interface=20 state change.

   o  The state or = interface ID=20 of one of the router's interfaces
     =20 changes.  The router may need to (re)originate or flush its=20 link-
      LSA and one or more router-LSAs = and/or=20 intra-area-prefix-LSAs.  If
      the = router is=20 DR, the router may also need to (re)originate=20 and/or
      flush the network LSA = corresponding to=20 the interface.
 
Does this mean link LSA has to be originate when the interface is = up and=20 not when a
first full neighbor appears?
 
Another point concerning network LSA origination. Shouldn't we have = an item=20 stating that
network LSA may be re-originated upon receipt (or purged) of a = link-LSA=20 because it may
entail a change in the option field.
 
Thanks
Fabien Verhaeghe
Atos Origin 
------_=_NextPart_001_01C68ED8.66AE2504-- --===============1861009336== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============1861009336==-- From ospf-bounces@ietf.org Tue Jun 13 11:37:47 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqAxY-0002n8-S0; Tue, 13 Jun 2006 11:37:40 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqAxY-0002mz-4i for ospf@ietf.org; Tue, 13 Jun 2006 11:37:40 -0400 Received: from zcars04e.nortel.com ([47.129.242.56]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FqAxW-0007W9-Of for ospf@ietf.org; Tue, 13 Jun 2006 11:37:40 -0400 Received: from zrtphxm1.corp.nortel.com (zrtphxm1.corp.nortel.com [47.140.202.50]) by zcars04e.nortel.com (Switch-2.2.0/Switch-2.2.0) with ESMTP id k5DFWJw18849; Tue, 13 Jun 2006 11:32:19 -0400 (EDT) X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Tue, 13 Jun 2006 11:36:25 -0400 Message-ID: <4B7DAC3FEFD35D4A96BDD0116990501403365F5C@zrtphxm1.corp.nortel.com> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [REPOSTING] OSPFv3 MIB: InterfaceID in Vlink Thread-Index: AcaKE4SYyZFO/b6RQEuZbN2XPAuRoQEvzr4wAAlT+3A= From: "Daniel Joyal" To: "Ramana Koppula-G20085" , X-Spam-Score: 0.0 (/) X-Scan-Signature: 311e798ce51dbeacf5cdfcc8e9fda21b Cc: vishwas@sinett.com Subject: [OSPF] RE: [REPOSTING] OSPFv3 MIB: InterfaceID in Vlink X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1700915400==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============1700915400== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C68EFF.2163BFA7" This is a multi-part message in MIME format. ------_=_NextPart_001_01C68EFF.2163BFA7 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Ramana, =20 I think from recent WG discussions it has been established that an OSPFv3 interface is identified by the interface InstanceID object. So, for physical links we have an Interface index and for an OSPFv3 interface on that link (of possibly multiple OSPFv3 interfaces) we have the interface InstanceID. =20 Currently, the Virtual Link table entry has both ospfv3VirtIfIndex=20 and ospfv3VirtIfInstId objects. I believe that only the ospfv3VirtIfInstId object is necessary and its usage would be symmetric with that of the ospfv3IfInstId object in the interface table. Since ospfv3IfInstId is configurable for physical interfaces, it should remain configurable for virtual interfaces. Does this make sense? =20 -Dan -----Original Message----- From: Ramana Koppula-G20085 [mailto:ramanakumar@motorola.com]=20 Sent: Tuesday, June 13, 2006 6:24 AM To: ospf@ietf.org Cc: Joyal, Daniel [BL60:SF23:EXCH]; vishwas@sinett.com Subject: [REPOSTING] OSPFv3 MIB: InterfaceID in Vlink =09 =09 I am eagerly waiting for some comments, whether its valid to keep a read-only or is there any issue if we make it read-only. =20 hi, =20 Doubt: When Interface ID for normal interfaces is not made configurable, why is Virtual Link's Interface ID made configurable in Virtual Interface Table? =20 As Virtual Interface's Interface ID need to be unique amongst all the Interface IDs within the router, the administrator had to check what all interface IDs are in use at present and make a selection. All this is not unavoidable. =20 I feel it would be better if we make it read-only object and leave the selection of it to implementation. =20 thanx ramana ------_=_NextPart_001_01C68EFF.2163BFA7 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Hi=20 Ramana,
 
I=20 think from recent WG discussions it has been=20 established that
an=20 OSPFv3 interface is identified by the interface=20 InstanceID object.
So,=20 for physical links we have an Interface index and for an = OSPFv3
interface on that link (of possibly multiple OSPFv3 = interfaces)=20 we
have=20 the interface InstanceID.
 
Currently, the Virtual Link table entry has both=20 ospfv3VirtIfIndex
and=20 ospfv3VirtIfInstId objects. I believe that only the=20 ospfv3VirtIfInstId
object=20 is necessary and its usage would be symmetric with that = of
the ospfv3IfInstId object in the interface table. Since=20 ospfv3IfInstId
is=20 configurable for physical interfaces, it should remain=20 configurable
for=20 virtual interfaces. Does this make sense?
 
-Dan
-----Original Message-----
From: = Ramana=20 Koppula-G20085 [mailto:ramanakumar@motorola.com]
Sent: = Tuesday,=20 June 13, 2006 6:24 AM
To: ospf@ietf.org
Cc: Joyal, = Daniel=20 [BL60:SF23:EXCH]; vishwas@sinett.com
Subject: [REPOSTING] = OSPFv3=20 MIB: InterfaceID in Vlink

I am eagerly waiting for some comments, whether = its valid=20 to keep a read-only or is there any issue if we make it=20 read-only.
 
hi,
 
Doubt: When=20 Interface ID for normal interfaces is not made configurable, why is = Virtual=20 Link's Interface ID made configurable in Virtual Interface=20 Table?
 
As = Virtual=20 Interface's Interface ID need to be unique amongst all the Interface = IDs=20 within the router, the administrator had to check what all interface = IDs are=20 in use at present and make a selection. All this is not=20 unavoidable.
 
I = feel it would be=20 better if we make it read-only object and leave the selection of it to = implementation.
 
thanx
ramana
------_=_NextPart_001_01C68EFF.2163BFA7-- --===============1700915400== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============1700915400==-- From ospf-bounces@ietf.org Tue Jun 13 13:49:53 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqD1Q-0002sR-9h; Tue, 13 Jun 2006 13:49:48 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqD1O-0002mU-BP for ospf@ietf.org; Tue, 13 Jun 2006 13:49:46 -0400 Received: from sj-iport-6.cisco.com ([171.71.176.117]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FqCxr-0004EZ-B0 for ospf@ietf.org; Tue, 13 Jun 2006 13:46:08 -0400 Received: from sj-dkim-3.cisco.com ([171.71.179.195]) by sj-iport-6.cisco.com with ESMTP; 13 Jun 2006 10:46:06 -0700 Received: from sj-core-5.cisco.com (sj-core-5.cisco.com [171.71.177.238]) by sj-dkim-3.cisco.com (8.12.11/8.12.11) with ESMTP id k5DHk54e032452 for ; Tue, 13 Jun 2006 10:46:05 -0700 Received: from xbh-sjc-221.amer.cisco.com (xbh-sjc-221.cisco.com [128.107.191.63]) by sj-core-5.cisco.com (8.12.10/8.12.6) with ESMTP id k5DHk5CU007649 for ; Tue, 13 Jun 2006 10:46:05 -0700 (PDT) Received: from xfe-sjc-211.amer.cisco.com ([171.70.151.174]) by xbh-sjc-221.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Tue, 13 Jun 2006 10:46:05 -0700 Received: from [128.107.175.85] ([128.107.175.85]) by xfe-sjc-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Tue, 13 Jun 2006 10:46:05 -0700 Message-ID: <448EF9DD.7020007@cisco.com> Date: Tue, 13 Jun 2006 13:46:05 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: OSPF List Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 13 Jun 2006 17:46:05.0312 (UTC) FILETIME=[3E8A8800:01C68F11] DKIM-Signature: a=rsa-sha1; q=dns; l=766; t=1150220765; x=1151084765; c=relaxed/simple; s=sjdkim3001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=acee@cisco.com; z=From:Acee=20Lindem=20 |Subject:[Fwd=3A=20Recommending=20the=20'Tao=20of=20the=20IETF'=20to=20your=20WG= 20members]; X=v=3Dcisco.com=3B=20h=3DHH6SfMCZOB52WESmMVwEX8ag6O4=3D; b=btSo7aADtcxZdNwpsXgsTZedZUovtdaaHmZIfx+sz1r14/f9FPv1ULZjqHI1R2AlJQR7+1Y6 nc9NRbzMKNghg/JytZHYE5EjqjawqnlYdYKA6yIwuoWI2XPzS4OHTflP; Authentication-Results: sj-dkim-3.cisco.com; header.From=acee@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 1.8 (+) X-Scan-Signature: 9182cfff02fae4f1b6e9349e01d62f32 Subject: [OSPF] [Fwd: Recommending the 'Tao of the IETF' to your WG members] X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org FYI - A new version of "The Tao of the IETF" has been approved for publication. IMHO, this is a very informative and well writen document. Thanks, Acee -------- Original Message -------- Subject: Recommending the 'Tao of the IETF' to your WG members Date: Mon, 12 Jun 2006 10:38:10 -0700 From: Paul Hoffman To: wgchairs@ietf.org Greetings again. If you have been suggesting that newbies in your WG coming to their first IETF read the 'Tao of the IETF', there is now a new official version. Feel free to point them at , which has just been approved as an Informational RFC to replace the old Tao. --Paul Hoffman, Director --VPN Consortium _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Tue Jun 13 16:51:20 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqFr2-0003ud-7H; Tue, 13 Jun 2006 16:51:16 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqFr1-0003uY-Oq for ospf@ietf.org; Tue, 13 Jun 2006 16:51:15 -0400 Received: from sj-iport-5.cisco.com ([171.68.10.87]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FqFr0-00072M-AL for ospf@ietf.org; Tue, 13 Jun 2006 16:51:15 -0400 Received: from sj-dkim-2.cisco.com ([171.71.179.186]) by sj-iport-5.cisco.com with ESMTP; 13 Jun 2006 13:51:13 -0700 X-IronPort-AV: i="4.06,128,1149490800"; d="scan'208"; a="294093923:sNHT49672020" Received: from sj-core-5.cisco.com (sj-core-5.cisco.com [171.71.177.238]) by sj-dkim-2.cisco.com (8.12.11/8.12.11) with ESMTP id k5DKpChC010048; Tue, 13 Jun 2006 13:51:12 -0700 Received: from xbh-sjc-231.amer.cisco.com (xbh-sjc-231.cisco.com [128.107.191.100]) by sj-core-5.cisco.com (8.12.10/8.12.6) with ESMTP id k5DKp7Ce020130; Tue, 13 Jun 2006 13:51:12 -0700 (PDT) Received: from xfe-sjc-211.amer.cisco.com ([171.70.151.174]) by xbh-sjc-231.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Tue, 13 Jun 2006 13:51:07 -0700 Received: from [128.107.175.85] ([128.107.175.85]) by xfe-sjc-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Tue, 13 Jun 2006 13:51:07 -0700 Message-ID: <448F253B.7070004@cisco.com> Date: Tue, 13 Jun 2006 16:51:07 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Khan Amir-G20247 Subject: Re: [OSPF] Link LSA generation in OSPFv3 References: <988EE2C769AC284ABAE9328BFC10703FCAEA79@ZMY16EXM66.ds.mot.com> In-Reply-To: <988EE2C769AC284ABAE9328BFC10703FCAEA79@ZMY16EXM66.ds.mot.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 13 Jun 2006 20:51:07.0479 (UTC) FILETIME=[17F2C670:01C68F2B] DKIM-Signature: a=rsa-sha1; q=dns; l=2429; t=1150231872; x=1151095872; c=relaxed/simple; s=sjdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=acee@cisco.com; z=From:Acee=20Lindem=20 |Subject:Re=3A=20[OSPF]=20Link=20LSA=20generation=20in=20OSPFv3; X=v=3Dcisco.com=3B=20h=3DVku1yTe66j6L6E2wlWSoFlyY7qA=3D; b=nMWaCIBNihqibbNJOmP4A8bLMyVnPorfiiF4bfY87Eo+vcSX6M6SR3YqfAceXR8aHFWlHDz8 ah7pO9i/KPwF5nl0cvNtCl3ls4T8g3+qLPlsSIU0Bn7OAtnOb56xZMdz; Authentication-Results: sj-dkim-2.cisco.com; header.From=acee@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: 3002fc2e661cd7f114cb6bae92fe88f1 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Fabien, Khan, Khan Amir-G20247 wrote: >Hi Fabien > >As per my understanding Link LSA can be originated when any of the NBR >on the link reaches TWO-WAY state. > > I'd say this is an implementation choice. However, the link-LSA must be originated in time to be including in the database exchange. I've always found it to be simpler to originate it when the link comes up. See one additional point below. > >Regards >Aamir > > > >________________________________ > >From: fabien.verhaeghe [mailto:fabien.verhaeghe@atosorigin.com] >Sent: Tuesday, June 13, 2006 3:00 PM >To: ospf@ietf.org >Subject: [OSPF] Link LSA generation in OSPFv3 > > >Hello All, > >>From draft-ietf-ospf-ospfv3-update-09.txt section 3.4.3.6 "A router >originates a separate link-LSA >for each attached link that supports 2 or more (including the >originating router itself) routers" >I understand that a router originates a link LSA only if it has at least >one fully adjacent neighbor. > >But in section 3.4.3 the link-lsa is note mentionned in the item: > > o A neighbor transitions to/from "Full" state. The router may need > to (re)originate or flush the link's network-LSA and one or more > router-LSAs and/or intra-area-prefix-LSAs. > >Instead it is put in the first item about interface state change. > > o The state or interface ID of one of the router's interfaces > changes. The router may need to (re)originate or flush its link- > LSA and one or more router-LSAs and/or intra-area-prefix-LSAs. If > the router is DR, the router may also need to (re)originate and/or > flush the network LSA corresponding to the interface. > >Does this mean link LSA has to be originate when the interface is up and >not when a >first full neighbor appears? > >Another point concerning network LSA origination. Shouldn't we have an >item stating that >network LSA may be re-originated upon receipt (or purged) of a link-LSA >because it may >entail a change in the option field. > > I agree, I'll add this to section 3.4.3 in the 10 version. Thanks, Acee > >Thanks >Fabien Verhaeghe >Atos Origin > > > >------------------------------------------------------------------------ > >_______________________________________________ >OSPF mailing list >OSPF@ietf.org >https://www1.ietf.org/mailman/listinfo/ospf > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Wed Jun 14 12:45:34 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqYUh-000403-US; Wed, 14 Jun 2006 12:45:27 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqYUg-0003zy-Pz for ospf@ietf.org; Wed, 14 Jun 2006 12:45:26 -0400 Received: from motgate5.mot.com ([144.189.100.105]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FqYUg-0003fU-2Q for ospf@ietf.org; Wed, 14 Jun 2006 12:45:26 -0400 Received: from az33exr04.mot.com (az33exr04.mot.com [10.64.251.234]) by motgate5.mot.com (8.12.11/Motgate5) with ESMTP id k5EGjPhF016505 for ; Wed, 14 Jun 2006 09:45:25 -0700 (MST) Received: from ZMY16EXM66.ds.mot.com (zmy16exm66.ap.mot.com [10.179.4.26]) by az33exr04.mot.com (8.13.1/8.13.0) with ESMTP id k5EGjMFU015617 for ; Wed, 14 Jun 2006 11:45:24 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Thu, 15 Jun 2006 00:45:12 +0800 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [REPOSTING] OSPFv3 MIB: InterfaceID in Vlink Thread-Index: AcaKE4SYyZFO/b6RQEuZbN2XPAuRoQEvzr4wAAlT+3AANi9C8A== From: "Ramana Koppula-G20085" To: "Daniel Joyal" , X-Brightmail-Tracker: AAAAAQAAAAQ= X-White-List-Member: TRUE X-Spam-Score: 0.0 (/) X-Scan-Signature: dd7e0c3fd18d19cffdd4de99a114001d Cc: vishwas@sinett.com Subject: [OSPF] RE: [REPOSTING] OSPFv3 MIB: InterfaceID in Vlink X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0844114177==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============0844114177== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C68FD1.ED76DEDF" This is a multi-part message in MIME format. ------_=_NextPart_001_01C68FD1.ED76DEDF Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Daniel, =20 Yes, removing VirtIfIndex is Ok. Which is not mandatory to show also as we consistent with interface table also. =20 thanx ramana ________________________________ From: Daniel Joyal [mailto:djoyal@nortel.com]=20 Sent: Tuesday, June 13, 2006 9:06 PM To: Ramana Koppula-G20085; ospf@ietf.org Cc: vishwas@sinett.com Subject: RE: [REPOSTING] OSPFv3 MIB: InterfaceID in Vlink Hi Ramana, =20 I think from recent WG discussions it has been established that an OSPFv3 interface is identified by the interface InstanceID object. So, for physical links we have an Interface index and for an OSPFv3 interface on that link (of possibly multiple OSPFv3 interfaces) we have the interface InstanceID. =20 Currently, the Virtual Link table entry has both ospfv3VirtIfIndex=20 and ospfv3VirtIfInstId objects. I believe that only the ospfv3VirtIfInstId object is necessary and its usage would be symmetric with that of the ospfv3IfInstId object in the interface table. Since ospfv3IfInstId is configurable for physical interfaces, it should remain configurable for virtual interfaces. Does this make sense? =20 -Dan -----Original Message----- From: Ramana Koppula-G20085 [mailto:ramanakumar@motorola.com]=20 Sent: Tuesday, June 13, 2006 6:24 AM To: ospf@ietf.org Cc: Joyal, Daniel [BL60:SF23:EXCH]; vishwas@sinett.com Subject: [REPOSTING] OSPFv3 MIB: InterfaceID in Vlink =09 =09 I am eagerly waiting for some comments, whether its valid to keep a read-only or is there any issue if we make it read-only. =20 hi, =20 Doubt: When Interface ID for normal interfaces is not made configurable, why is Virtual Link's Interface ID made configurable in Virtual Interface Table? =20 As Virtual Interface's Interface ID need to be unique amongst all the Interface IDs within the router, the administrator had to check what all interface IDs are in use at present and make a selection. All this is not unavoidable. =20 I feel it would be better if we make it read-only object and leave the selection of it to implementation. =20 thanx ramana ------_=_NextPart_001_01C68FD1.ED76DEDF Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Hi Daniel,
 
Yes, removing VirtIfIndex is Ok. Which is not = mandatory=20 to show also as we consistent with interface table = also.
 
thanx
ramana


From: Daniel Joyal = [mailto:djoyal@nortel.com]=20
Sent: Tuesday, June 13, 2006 9:06 PM
To: Ramana=20 Koppula-G20085; ospf@ietf.org
Cc:=20 vishwas@sinett.com
Subject: RE: [REPOSTING] OSPFv3 MIB: = InterfaceID in=20 Vlink

Hi=20 Ramana,
 
I=20 think from recent WG discussions it has been=20 established that
an=20 OSPFv3 interface is identified by the interface=20 InstanceID object.
So,=20 for physical links we have an Interface index and for an = OSPFv3
interface on that link (of possibly multiple OSPFv3 = interfaces)=20 we
have=20 the interface InstanceID.
 
Currently, the Virtual Link table entry has both=20 ospfv3VirtIfIndex=20
and=20 ospfv3VirtIfInstId objects. I believe that only the=20 ospfv3VirtIfInstId
object=20 is necessary and its usage would be symmetric with that = of
the ospfv3IfInstId object in the interface table. Since=20 ospfv3IfInstId
is=20 configurable for physical interfaces, it should remain=20 configurable
for=20 virtual interfaces. Does this make sense?
 
-Dan
-----Original Message-----
From: = Ramana=20 Koppula-G20085 [mailto:ramanakumar@motorola.com]
Sent: = Tuesday,=20 June 13, 2006 6:24 AM
To: ospf@ietf.org
Cc: Joyal, = Daniel=20 [BL60:SF23:EXCH]; vishwas@sinett.com
Subject: [REPOSTING] = OSPFv3=20 MIB: InterfaceID in Vlink

I am eagerly waiting for some comments, whether = its valid=20 to keep a read-only or is there any issue if we make it=20 read-only.
 
hi,
 
Doubt: When=20 Interface ID for normal interfaces is not made configurable, why is = Virtual=20 Link's Interface ID made configurable in Virtual Interface=20 Table?
 
As = Virtual=20 Interface's Interface ID need to be unique amongst all the Interface = IDs=20 within the router, the administrator had to check what all interface = IDs are=20 in use at present and make a selection. All this is not=20 unavoidable.
 
I = feel it would be=20 better if we make it read-only object and leave the selection of it to = implementation.
 
thanx
ramana
------_=_NextPart_001_01C68FD1.ED76DEDF-- --===============0844114177== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============0844114177==-- From MAILER-DAEMON Wed Jun 14 13:54:58 2006 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqZZy-0005K7-38 for ospf-archive@lists.ietf.org; Wed, 14 Jun 2006 13:54:58 -0400 Received: from mail.gtec.com ([66.117.96.4]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FqZZw-0005EN-Sf for ospf-archive@lists.ietf.org; Wed, 14 Jun 2006 13:54:58 -0400 Received: from mail.gtec.com by mail.gtec.com (VisNetic.MailServer.v8.0.3.1) with SMTP id ABM38377 for ; Wed, 14 Jun 2006 12:54:56 -0500 Date: Wed, 14 Jun 2006 12:54:56 -0500 From: VisNetic MailServer To: Message-Id: <885941980@mail.gtec.com> Subject: Returned mail: DNS server responded with 3 (Domain Not Found) Content-Type: multipart/report; report-type=delivery-status; boundary="88594198020060614125456C885@mail.gtec.com" X-Spam-Score: 0.5 (/) X-Scan-Signature: 21c69d3cfc2dd19218717dbe1d974352 --88594198020060614125456C885@mail.gtec.com The original message was received at Wed, 14 Jun 2006 12:54:56 -0500 ----- The following addresses had permanent fatal errors ----- ----- Transcript of session follows ----- ... while issuing MX query to 66.117.96.6 554 DNS server responded with 3 (Domain Not Found) --88594198020060614125456C885@mail.gtec.com Content-Type: message/delivery-status Reporting-MTA: DNS; mail.gtec.com Arrival-Date: Wed, 14 Jun 2006 12:54:58 -0500 Original-Recipient: RFC822; Final-Recipient: RFC822; Action: failed Last-Attempt-Date: Wed, 14 Jun 2006 12:54:56 -0500 --88594198020060614125456C885@mail.gtec.com Content-Type: message/rfc822 Return-Path: Received: from lists.ietf.org ([66.117.99.136]) by mail.gtec.com (VisNetic.MailServer.v8.0.3.1) with ESMTP id ABM38377 for ; Wed, 14 Jun 2006 12:54:54 -0500 From: ospf-archive@lists.ietf.org To: e1e7ylj-0000o4-bl@newodin.ietf.org Subject: e1e7ylj-0000o4-bl@newodin.ietf.org Date: Wed, 14 Jun 2006 12:50:04 -0500 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0011_06BBA66F.AC03D67B" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 --88594198020060614125456C885@mail.gtec.com-- From ospf-bounces@ietf.org Thu Jun 15 06:58:00 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqpXs-00036S-QB; Thu, 15 Jun 2006 06:57:52 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqpXr-00036N-3r for ospf@ietf.org; Thu, 15 Jun 2006 06:57:51 -0400 Received: from motgate8.mot.com ([129.188.136.8]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FqpXo-0007F7-RJ for ospf@ietf.org; Thu, 15 Jun 2006 06:57:51 -0400 Received: from il06exr02.mot.com (il06exr02.mot.com [129.188.137.132]) by motgate8.mot.com (8.12.11/Motgate7) with ESMTP id k5FAvmu5018665 for ; Thu, 15 Jun 2006 03:57:48 -0700 (MST) Received: from ZMY16EXM66.ds.mot.com (zmy16exm66.ap.mot.com [10.179.4.26]) by il06exr02.mot.com (8.13.1/8.13.0) with ESMTP id k5FAvkpP010088 for ; Thu, 15 Jun 2006 05:57:47 -0500 (CDT) X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Thu, 15 Jun 2006 18:57:35 +0800 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: OSPFv3 Draft 9: Equal-cost paths through mutliple interfaces in a single link Thread-Index: AcaQaoI2xGcg2P2BSAaaKvAxyz6I0g== From: "Ramana Koppula-G20085" To: X-Brightmail-Tracker: AAAAAQAAAAQ= X-White-List-Member: TRUE X-Spam-Score: 0.0 (/) X-Scan-Signature: 00e94c813bef7832af255170dca19e36 Subject: [OSPF] OSPFv3 Draft 9: Equal-cost paths through mutliple interfaces in a single link X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0942105952==" Errors-To: ospf-bounces@ietf.org This is a multi-part message in MIME format. --===============0942105952== Content-class: urn:content-classes:message Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C6906A.88E1AF31" This is a multi-part message in MIME format. ------_=_NextPart_001_01C6906A.88E1AF31 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, =20 In Section 3.9: "The interfaces in this list are used as equal-cost paths when routes are installed in the routing table." =20 In the same Section: "If the Active Interface fails, another will have to take over, reforming all neighbor adjacencies from scratch." =20 The motive of equal-cost paths is to retain a route to a router even if one path goes down. By mandating the StandBy to reform all the neighbor adjacencies from scratch, are we not losing that edge. =20 thanx ramana ------_=_NextPart_001_01C6906A.88E1AF31 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Hi,
 
In Section 3.9: "The interfaces in this list are used as = equal-cost=20 paths when routes are installed = in the=20 routing table."
 
In the = same Section:=20 "If the Active Interface fails, another will have to take over, = reforming all=20 neighbor adjacencies from scratch."
 
The = motive of=20 equal-cost paths is to retain a route to a router even if one path goes=20 down.
By = mandating the=20 StandBy to reform all the neighbor adjacencies from scratch, are we not = losing=20 that edge.
 
thanx
ramana
------_=_NextPart_001_01C6906A.88E1AF31-- --===============0942105952== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============0942105952==-- From ospf-bounces@ietf.org Thu Jun 15 12:59:22 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqvBa-0003Kt-J4; Thu, 15 Jun 2006 12:59:14 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FqvBZ-0003Km-1w for ospf@ietf.org; Thu, 15 Jun 2006 12:59:13 -0400 Received: from sj-iport-4.cisco.com ([171.68.10.86]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FqvBX-0003I8-Iu for ospf@ietf.org; Thu, 15 Jun 2006 12:59:13 -0400 Received: from sj-dkim-6.cisco.com ([171.68.10.81]) by sj-iport-4.cisco.com with ESMTP; 15 Jun 2006 09:58:49 -0700 X-IronPort-AV: i="4.06,137,1149490800"; d="scan'208"; a="1826322621:sNHT954351996" Received: from sj-core-3.cisco.com (sj-core-3.cisco.com [171.68.223.137]) by sj-dkim-6.cisco.com (8.12.11/8.12.11) with ESMTP id k5FGwnXD024832; Thu, 15 Jun 2006 09:58:49 -0700 Received: from xbh-sjc-221.amer.cisco.com (xbh-sjc-221.cisco.com [128.107.191.63]) by sj-core-3.cisco.com (8.12.10/8.12.6) with ESMTP id k5FGwnIs021296; Thu, 15 Jun 2006 09:58:49 -0700 (PDT) Received: from xfe-sjc-211.amer.cisco.com ([171.70.151.174]) by xbh-sjc-221.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Thu, 15 Jun 2006 09:58:49 -0700 Received: from cisco.com ([128.107.163.166]) by xfe-sjc-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Thu, 15 Jun 2006 09:58:48 -0700 Message-ID: <449191C8.1010704@cisco.com> Date: Thu, 15 Jun 2006 09:58:48 -0700 From: Michael J Barnes User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ramana Koppula-G20085 Subject: Re: [OSPF] OSPFv3 Draft 9: Equal-cost paths through mutliple interfaces in a single link References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 15 Jun 2006 16:58:48.0671 (UTC) FILETIME=[F898F6F0:01C6909C] DKIM-Signature: a=rsa-sha1; q=dns; l=1563; t=1150390729; x=1151254729; c=relaxed/simple; s=sjdkim6001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=mjbarnes@cisco.com; z=From:Michael=20J=20Barnes=20 |Subject:Re=3A=20[OSPF]=20OSPFv3=20Draft=209=3A=20Equal-cost=20paths=20through=20 mutliple=20interfaces=0A=20in=20a=20single=20link; X=v=3Dcisco.com=3B=20h=3DINkHvxvPsuwaQHqeNwA0CRf4Wao=3D; b=frx0TKPitj6FW0DPhlAdV0qeZz5qC5E78iMEXnr57RChQvNCxvKnY01KM4VI/qNZgX8bVaEe FMIK0OX8xY8DzWhqYztuyQQXMIhdZK3hKasMksmV9cGKWgxKPBNjgUAq; Authentication-Results: sj-dkim-6.cisco.com; header.From=mjbarnes@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: 7baded97d9887f7a0c7e8a33c2e3ea1b Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hello Ramana, There are a few reasons for the newly active interface to reform adjacencies. First is that it is unknown why the standby interface is no longer able to see the hello packets from the active. It is possible, for example, that the standby has been physically rewired such that it is connected to a different LAN, or a VLAN may have been reconfigured, and there are many other possibilities. On top of that, is that the standby has a different interface ID and also a different link-local address. It must be assured that the neighbors have the correct information. If the adjacencies are not reformed, then it is possible that the neighbors will keep out of date information in their neighbor data structure and/or LSAs. Thanks, Michael Ramana Koppula-G20085 wrote: > Hi, > > In Section 3.9: "The interfaces in this list are used as equal-cost > paths when routes are installed in the routing table." > > In the same Section: "If the Active Interface fails, another will have > to take over, reforming all neighbor adjacencies from scratch." > > The motive of equal-cost paths is to retain a route to a router even if > one path goes down. > By mandating the StandBy to reform all the neighbor adjacencies from > scratch, are we not losing that edge. > > thanx > ramana > > > ------------------------------------------------------------------------ > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 16 01:07:05 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fr6Xt-0002h7-7n; Fri, 16 Jun 2006 01:07:01 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fr6Xr-0002ak-4j for ospf@ietf.org; Fri, 16 Jun 2006 01:06:59 -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 1Fr6Xr-0002fU-3B for ospf@ietf.org; Fri, 16 Jun 2006 01:06:59 -0400 Received: from london.unik.no ([193.156.97.32]) by chiedprmail1.ietf.org with esmtp (Exim 4.43) id 1Fr6Xn-0004rk-88 for ospf@ietf.org; Fri, 16 Jun 2006 01:06:58 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Date: Fri, 16 Jun 2006 07:08:09 +0200 Message-ID: <093EBAF8333DBD49A5CC0A045175A6E8346F62@london.unik.no> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Implementation of a Wireless MANET Extension to OSPF Thread-Index: AcaRAtxc/L519j/0Si6JcS/LnM+8lg== From: "Andreas Hafslund" To: X-Spam-Score: -2.6 (--) X-Scan-Signature: ffa9dfbbe7cc58b3fa6b8ae3e57b0aa3 Cc: kenneho@gmail.com Subject: [OSPF] Implementation of a Wireless MANET Extension to OSPF X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org All, Kenneth Holter at the UniK - University Graduate Center at Kjeller, and = the University of Oslo, has made an implementation of a Wireless MANET = Extension to OSPF. The implementation can be downloaded from here: http://folk.uio.no/kenneho/index.php?page=3Dstudies&subpage=3Dwospf Documentation of this implementation can be found here: http://folk.uio.no/kenneho/studies/master_thesis_Kenneth_Holter.pdf A technical report was presented at the 6th Scandinavian Workshop on = Wireless Ad-hoc Networks: "Design and Implementation of Wireless OSPF = for Mobile Ad Hoc Networks" by Kenneth Holter, Andreas Hafslund, Frank = Y. Li and Knut =D8vsthus. The report can be downloaded from here: http://www.wireless.kth.se/adhoc06/program.shtml The implementation is based on the IETF Internet-draft "Extensions to = OSPF to Support Mobile Ad Hoc Networking" by M Chandra, and it is a = patch for the Quagga 0.98.5 Routing Software Suite. Regards, Andreas. --=20 Andreas Hafslund Thales Norway AS _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 16 01:40:18 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fr741-0006wv-SY; Fri, 16 Jun 2006 01:40:13 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fr740-0006qS-Om for ospf@ietf.org; Fri, 16 Jun 2006 01:40:12 -0400 Received: from [203.199.83.136] (helo=rediffmail.com) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1Fr73z-0005o2-D0 for ospf@ietf.org; Fri, 16 Jun 2006 01:40:12 -0400 Received: (qmail 2585 invoked by uid 510); 16 Jun 2006 05:38:23 -0000 Date: 16 Jun 2006 05:38:23 -0000 Message-ID: <20060616053823.2584.qmail@webmail62.rediffmail.com> Received: from unknown (203.126.136.220) by rediffmail.com via HTTP; 16 jun 2006 05:38:23 -0000 MIME-Version: 1.0 From: "Vivek Dubey" To: "Michael J Barnes" Subject: Re: Re: [OSPF] OSPFv3 Draft 9: Equal-cost paths through mutliple interfaces in a single link X-Spam-Score: 0.3 (/) X-Scan-Signature: 6d95a152022472c7d6cdf886a0424dc6 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Vivek Dubey List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1937190295==" Errors-To: ospf-bounces@ietf.org This is a multipart mime message --===============1937190295== Content-type: multipart/alternative; boundary="Next_1150436303---0-203.199.83.136-2580" This is a multipart mime message --Next_1150436303---0-203.199.83.136-2580 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi, =A0=0AThere are a few reasons for the newly active interface to reform = adjacencies. First is that it is unknown why the standby interface is no lo= nger able to see the hello packets from the active. It is possible, for exa= mple, that the standby has been physically rewired such that it is connecte= d to a different LAN, or a VLAN may have been reconfigured, and there are m= any other possibilities.=0A=0A Reason is unknown no doubt when Activ= e's hellos are not seen.=0ABut to quote draft "This failure can be detected= by the router itself, when the other interfaces to the same link cease to = hear the router's own Hellos or through internal mechanisms such as when th= e interface is disabled by a configuration change"=0ASo in case of internal= mechanisms "reasons can be known".=0A=0AOn top of that, is that the standb= y has a different interface ID and also a different link-local address. It = must be assured that the neighbors have the correct information. If the adj= acencies are not reformed, then it is possible that the neighbors will keep= out of date information in their neighbor data structure and/or LSAs.=0A= =0A Re-origination of LSAs should be able to take care of this scena= rion. Section 3.4.3 of Draft 10 has few events which can play a role.=0A=0A= -Vivek=0A=0A=0A=0A=0A=0A=0A=0A=0AOn Thu, 15 Jun 2006 Michael J Barnes wrote= :=0A>Hello Ramana,=0A>=0A>There are a few reasons for the newly active int= erface to reform adjacencies. First is that it is unknown why the standby i= nterface is no longer able to see the hello packets from the active. It is = possible, for example, that the standby has been physically rewired such th= at it is connected to a different LAN, or a VLAN may have been reconfigured= , and there are many other possibilities. On top of that, is that the stand= by has a different interface ID and also a different link-local address. It= must be assured that the neighbors have the correct information. If the ad= jacencies are not reformed, then it is possible that the neighbors will kee= p out of date information in their neighbor data structure and/or LSAs.=0A>= =0A>Thanks,=0A>Michael=0A>=0A>Ramana Koppula-G20085 wrote:=0A>>Hi,=0A>> In= Section 3.9: "The interfaces in this list are used as equal-cost paths whe= n routes are installed in the routing table."=0A>> In the same Section: "I= f the Active Interface fails, another will have to take over, reforming all= neighbor adjacencies from scratch."=0A>> The motive of equal-cost paths i= s to retain a route to a router even if one path goes down.=0A>>By mandatin= g the StandBy to reform all the neighbor adjacencies from scratch, are we n= ot losing that edge.=0A>> thanx=0A>>ramana=0A>>=0A>>=0A>>-----------------= -------------------------------------------------------=0A>>=0A>>__________= _____________________________________=0A>>OSPF mailing list=0A>>OSPF@ietf.o= rg=0A>>https://www1.ietf.org/mailman/listinfo/ospf=0A>=0A>_________________= ______________________________=0A>OSPF mailing list=0A>OSPF@ietf.org=0A>htt= ps://www1.ietf.org/mailman/listinfo/ospf=0A --Next_1150436303---0-203.199.83.136-2580 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

=0AHi, 
=0AThere are a few reasons for the newly active interfa= ce to reform adjacencies. First is that it is unknown why the standby inter= face is no longer able to see the hello packets from the active. It is poss= ible, for example, that the standby has been physically rewired such that i= t is connected to a different LAN, or a VLAN may have been reconfigured, an= d there are many other possibilities.
=0A
=0A<vivek> Reason is = unknown no doubt when Active's hellos are not seen.
=0ABut to quote draf= t "This failure can be detected by the router itself, when the other i= nterfaces to the same link cease to hear the router's own Hellos or through= internal mechanisms such as when the interface is disabled by a configurat= ion change"
=0ASo in case of internal mechanisms "reasons can = be known".
=0A
=0AOn top of that, is that the standby has a diff= erent interface ID and also a different link-local address. It must be assu= red that the neighbors have the correct information. If the adjacencies are= not reformed, then it is possible that the neighbors will keep out of date= information in their neighbor data structure and/or LSAs.
=0A
=0A<= ;vivek> Re-origination of LSAs should be able to take care of this scena= rion. Section 3.4.3 of Draft 10 has few events which can play a role.
= =0A
=0A-Vivek
=0A
=0A
=0A
=0A
=0A
=0A
=0A
=0A=0AOn Thu, 15 Jun 2006 Michael J Barnes wrote :
=0A>Hello Ramana,=0A>
=0A>There are a few reasons for the newly active interface t= o reform adjacencies. First is that it is unknown why the standby interface= is no longer able to see the hello packets from the active. It is possible= , for example, that the standby has been physically rewired such that it is= connected to a different LAN, or a VLAN may have been reconfigured, and th= ere are many other possibilities. On top of that, is that the standby has a= different interface ID and also a different link-local address. It must be= assured that the neighbors have the correct information. If the adjacencie= s are not reformed, then it is possible that the neighbors will keep out of= date information in their neighbor data structure and/or LSAs.
=0A><= BR>=0A>Thanks,
=0A>Michael
=0A>
=0A>Ramana Koppula-G20= 085 wrote:
=0A>>Hi,
=0A>>  In Section 3.9: "The= interfaces in this list are used as equal-cost paths when routes are insta= lled in the routing table."
=0A>>  In the same Section: = "If the Active Interface fails, another will have to take over, reform= ing all neighbor adjacencies from scratch."
=0A>>  The m= otive of equal-cost paths is to retain a route to a router even if one path= goes down.
=0A>>By mandating the StandBy to reform all the neighb= or adjacencies from scratch, are we not losing that edge.
=0A>>&nb= sp; thanx
=0A>>ramana
=0A>>
=0A>>
=0A>>= ------------------------------------------------------------------------=0A>>
=0A>>_______________________________________________<= BR>=0A>>OSPF mailing list
=0A>>OSPF@ietf.org
=0A>>h= ttps://www1.ietf.org/mailman/listinfo/ospf
=0A>
=0A>___________= ____________________________________
=0A>OSPF mailing list
=0A>= OSPF@ietf.org
=0A>https://www1.ietf.org/mailman/listinfo/ospf
=0A= =0A

=0A

=0A=0A --Next_1150436303---0-203.199.83.136-2580-- --===============1937190295== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============1937190295==-- From ospf-bounces@ietf.org Fri Jun 16 18:30:07 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FrMpE-0007RO-DF; Fri, 16 Jun 2006 18:30:00 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FrMpD-0007RG-00 for ospf@ietf.org; Fri, 16 Jun 2006 18:29:59 -0400 Received: from rtp-iport-2.cisco.com ([64.102.122.149]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FrMpB-0002yL-Lz for ospf@ietf.org; Fri, 16 Jun 2006 18:29:58 -0400 Received: from rtp-core-1.cisco.com ([64.102.124.12]) by rtp-iport-2.cisco.com with ESMTP; 16 Jun 2006 18:29:57 -0400 X-IronPort-AV: i="4.06,144,1149480000"; d="scan'208"; a="90261477:sNHT133131296" Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5GMTtYL009674; Fri, 16 Jun 2006 18:29:55 -0400 (EDT) Received: from xfe-rtp-202.amer.cisco.com ([64.102.31.21]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 16 Jun 2006 18:29:55 -0400 Received: from [10.82.216.166] ([10.82.216.166]) by xfe-rtp-202.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 16 Jun 2006 18:29:55 -0400 Message-ID: <4492D4D7.6070805@cisco.com> Date: Fri, 16 Jun 2006 11:57:11 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Zengjie Kou Subject: Re: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" References: <00a901c68ece$65b73330$96726e0a@china.huawei.com> In-Reply-To: <00a901c68ece$65b73330$96726e0a@china.huawei.com> Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 16 Jun 2006 22:29:55.0392 (UTC) FILETIME=[647FC400:01C69194] X-Spam-Score: 0.2 (/) X-Scan-Signature: e1e48a527f609d1be2bc8d8a70eb76cb Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org This draft was presented in Dallas. A show-of-hands poll in a Dallas was mixed with more people against than for making it accepting it as a working group document. We than tabled it to further discussion on the OSPF WG list. Speaking as a WG member, my personal opinion is that the WG should accept this document an an informational of BCP track RFC. 1. This behavior is not new - there are several implementations that already reply immediately in certain situations. 2. There are many ways of doing this and it is unlikely we will agree on the exact details of how it should be done. I, for one, have implemented it differently than documented in this draft. Thanks, Acee Zengjie Kou wrote: >hi,all > I updated the draft "draft-kou-ospf-immediately-replying-hello-00.txt". The link is following: >http://tools.ietf.org/wg/ospf/draft-kou-ospf-immediately-replying-hello-01.txt > In the new version, interoperation of immediate hello is added and the additional immediate hello >traffic is avoided by auto configuration. > The abstract is following: >This memo documents an extension of the OSPF protocol to reach > "ExStart" state more quickly. Currently, the OSPF behavior requires > the Hello Packet to be sent between the neighbors every > HelloInterval. This document proposes to generalize the use of > Immediately Replying Hello which could reduce the time required to > reach the OSPF "ExStart" state and expedite the routing table > convergence. > >_______________________________________________ >OSPF mailing list >OSPF@ietf.org >https://www1.ietf.org/mailman/listinfo/ospf > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Sat Jun 17 08:56:45 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FraLw-0001ZV-Ol; Sat, 17 Jun 2006 08:56:40 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FraLv-0001ZQ-KG for ospf@ietf.org; Sat, 17 Jun 2006 08:56:39 -0400 Received: from rtp-iport-2.cisco.com ([64.102.122.149]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FraLu-0003qI-EE for ospf@ietf.org; Sat, 17 Jun 2006 08:56:39 -0400 Received: from rtp-core-2.cisco.com ([64.102.124.13]) by rtp-iport-2.cisco.com with ESMTP; 17 Jun 2006 08:56:38 -0400 X-IronPort-AV: i="4.06,144,1149480000"; d="scan'208"; a="90293786:sNHT27331396" Received: from [10.82.216.143] (rtp-vpn3-143.cisco.com [10.82.216.143]) by rtp-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id k5HCuano002976; Sat, 17 Jun 2006 08:56:36 -0400 (EDT) Message-ID: <4493FC03.9000007@cisco.com> Date: Sat, 17 Jun 2006 08:56:35 -0400 From: Russ White User-Agent: Thunderbird 1.5.0.4 (Windows/20060516) MIME-Version: 1.0 To: Acee Lindem Subject: Re: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" References: <00a901c68ece$65b73330$96726e0a@china.huawei.com> <4492D4D7.6070805@cisco.com> In-Reply-To: <4492D4D7.6070805@cisco.com> X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 7bit X-Spam-Score: 0.0 (/) X-Scan-Signature: ffa9dfbbe7cc58b3fa6b8ae3e57b0aa3 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > Speaking as a WG member, my personal opinion is that the WG should > accept this document an an informational of BCP track RFC. This sounds fine.... Count my vote in that direction, as well. :-) Russ - -- riw@cisco.com CCIE <>< Grace Alone -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFEk/wDER27sUhU9OQRAvY9AKCrebSk6VRgr6L/SJGB12m4ZErV0ACg1B+8 UKcbdXfJwL/u5nzZERpS7HI= =8pvC -----END PGP SIGNATURE----- _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Sat Jun 17 15:09:16 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FrgAO-00007Z-I3; Sat, 17 Jun 2006 15:09:08 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FrgAN-00007U-7Y for ospf@ietf.org; Sat, 17 Jun 2006 15:09:07 -0400 Received: from rtp-iport-2.cisco.com ([64.102.122.149]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FrgAK-00060n-U3 for ospf@ietf.org; Sat, 17 Jun 2006 15:09:07 -0400 Received: from rtp-core-2.cisco.com ([64.102.124.13]) by rtp-iport-2.cisco.com with ESMTP; 17 Jun 2006 15:09:05 -0400 X-IronPort-AV: i="4.06,145,1149480000"; d="scan'208"; a="90308520:sNHT30032976" Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by rtp-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id k5HJ93no024521; Sat, 17 Jun 2006 15:09:03 -0400 (EDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Sat, 17 Jun 2006 15:09:03 -0400 Received: from [10.82.216.166] ([10.82.216.166]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Sat, 17 Jun 2006 15:09:02 -0400 Message-ID: <4494534E.1060804@cisco.com> Date: Sat, 17 Jun 2006 15:09:02 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Russ White Subject: Re: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" References: <00a901c68ece$65b73330$96726e0a@china.huawei.com> <4492D4D7.6070805@cisco.com> <4493FC03.9000007@cisco.com> In-Reply-To: <4493FC03.9000007@cisco.com> Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 17 Jun 2006 19:09:02.0895 (UTC) FILETIME=[7F106BF0:01C69241] X-Spam-Score: 0.0 (/) X-Scan-Signature: f4c2cf0bccc868e4cc88dace71fb3f44 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Zengjie, Russ White wrote: >-----BEGIN PGP SIGNED MESSAGE----- >Hash: SHA1 > > > > >>Speaking as a WG member, my personal opinion is that the WG should >>accept this document an an informational of BCP track RFC. >> >> > >This sounds fine.... Count my vote in that direction, as well. > > Actually, I meant NOT accept as WG document I guess that what I get for trying to respond to E-mail sitting in the middle seat on a crowded plane. Here is my reasoning why: 1. This behavior is not new - there are several implementations that already reply immediately in certain situations. 2. There are many ways of doing this and it is unlikely we will agree on the exact details of how it should be done. I, for one, have implemented it differently than documented in this draft. I just don't think there is that much to be gained by documenting this after the fact when there isn't agreement on the sudtleties of operation. Sorry for the confusion. Thanks, Acee >:-) > >Russ > > > >- -- >riw@cisco.com CCIE <>< Grace Alone > >-----BEGIN PGP SIGNATURE----- >Version: GnuPG v1.4.2.2 (MingW32) >Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > >iD8DBQFEk/wDER27sUhU9OQRAvY9AKCrebSk6VRgr6L/SJGB12m4ZErV0ACg1B+8 >UKcbdXfJwL/u5nzZERpS7HI= >=8pvC >-----END PGP SIGNATURE----- > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Mon Jun 19 02:55:49 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsDfc-0001bC-86; Mon, 19 Jun 2006 02:55:36 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsDfa-0001b2-7B for ospf@ietf.org; Mon, 19 Jun 2006 02:55:34 -0400 Received: from szxga01-in.huawei.com ([61.144.161.53] helo=huawei.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FsDfY-0002wb-Lu for ospf@ietf.org; Mon, 19 Jun 2006 02:55:34 -0400 Received: from huawei.com (szxga01-in [172.24.2.3]) by szxga01-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J13000K7HXDY0@szxga01-in.huawei.com> for ospf@ietf.org; Mon, 19 Jun 2006 14:56:01 +0800 (CST) Received: from huawei.com ([172.24.1.24]) by szxga01-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J13007KOHXDTD@szxga01-in.huawei.com> for ospf@ietf.org; Mon, 19 Jun 2006 14:56:01 +0800 (CST) Received: from k49110 ([10.110.114.150]) by szxml04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J13003OAICHRD@szxml04-in.huawei.com> for ospf@ietf.org; Mon, 19 Jun 2006 15:05:05 +0800 (CST) Date: Mon, 19 Jun 2006 14:54:22 +0800 From: Zengjie Kou Subject: Re: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" To: Acee Lindem Message-id: <002e01c6936d$32361000$96726e0a@china.huawei.com> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Mailer: Microsoft Outlook Express 6.00.2900.2180 Content-type: text/plain; charset=gb2312 Content-transfer-encoding: 7BIT X-Priority: 3 X-MSMail-priority: Normal References: <00a901c68ece$65b73330$96726e0a@china.huawei.com> <4492D4D7.6070805@cisco.com> <4493FC03.9000007@cisco.com> <4494534E.1060804@cisco.com> X-Spam-Score: 0.0 (/) X-Scan-Signature: d8ae4fd88fcaf47c1a71c804d04f413d Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org hi,Acee For immediately replying, I'd like to know what are other implementations(including yours). Would you like to make them included in the dratf? I hope to discuss detailedly. What's your opinion? thanks Zengjie. ----- Original Message ----- From: "Acee Lindem" To: "Russ White" Cc: "Zengjie Kou" ; Sent: Sunday, June 18, 2006 3:09 AM Subject: Re: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" > Hi Zengjie, > Russ White wrote: > >>-----BEGIN PGP SIGNED MESSAGE----- >>Hash: SHA1 >> >> >> >> >>>Speaking as a WG member, my personal opinion is that the WG should >>>accept this document an an informational of BCP track RFC. >>> >>> >> >>This sounds fine.... Count my vote in that direction, as well. >> >> > Actually, I meant NOT accept as WG document I guess that what I get for > trying > to respond to E-mail sitting in the middle seat on a crowded plane. Here > is my > reasoning why: > > 1. This behavior is not new - there are several implementations that > already reply immediately in certain situations. > 2. There are many ways of doing this and it is unlikely we will > agree on the exact details of how it should be done. I, for one, > have implemented it differently than documented in this draft. > > I just don't think there is that much to be gained by documenting > this after the fact when there isn't agreement on the sudtleties of > operation. > > Sorry for the confusion. > > Thanks, > Acee > >>:-) >> >>Russ >> >> >> >>- -- >>riw@cisco.com CCIE <>< Grace Alone >> >>-----BEGIN PGP SIGNATURE----- >>Version: GnuPG v1.4.2.2 (MingW32) >>Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org >> >>iD8DBQFEk/wDER27sUhU9OQRAvY9AKCrebSk6VRgr6L/SJGB12m4ZErV0ACg1B+8 >>UKcbdXfJwL/u5nzZERpS7HI= >>=8pvC >>-----END PGP SIGNATURE----- >> >> >> > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From MAILER-DAEMON Mon Jun 19 03:14:20 2006 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsDxH-0001Zz-Sy for ospf-archive@lists.ietf.org; Mon, 19 Jun 2006 03:13:51 -0400 Received: from mail.bcc.com.uz ([217.12.81.129]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FsDkv-00044E-HN for ospf-archive@lists.ietf.org; Mon, 19 Jun 2006 03:01:08 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.bcc.com.uz (Postfix) with ESMTP id BBFE2196751 for ; Mon, 19 Jun 2006 12:01:02 +0500 (UZT) MIME-Version: 1.0 Subject: VIRUS (Worm.Mydoom.M) IN MAIL FROM YOU In-Reply-To: <20060619070055.34F2219679E@mail.bcc.com.uz> Message-Id: Content-Type: multipart/report; report-type=delivery-status; boundary="----------=_1150700462-8862-1" From: Automatic Anti-virus Mail Checking System To: Date: Mon, 19 Jun 2006 12:01:02 +0500 (UZT) X-Spam-Score: 0.0 (/) X-Scan-Signature: cd26b070c2577ac175cd3a6d878c6248 This is a multi-part message in MIME format... ------------=_1150700462-8862-1 Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: 7bit VIRUS ALERT Our content checker found virus: Worm.Mydoom.M in email presumably from you (), to the following recipient: -> ipactr@bcc.com.uz Please check your system for viruses, or ask your system administrator to do so. 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For your reference, here are headers from your email: ------------------------- BEGIN HEADERS ----------------------------- Return-Path: Received: from lists.ietf.org (unknown [195.46.1.97]) by mail.bcc.com.uz (Postfix) with ESMTP id 34F2219679E for ; Mon, 19 Jun 2006 12:00:55 +0500 (UZT) From: ospf-archive@lists.ietf.org To: ugalumni@actr.bcc.com.uz Subject: ugalumni@actr.bcc.com.uz Date: Mon, 19 Jun 2006 10:00:15 +0300 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0014_77605556.D5ADB4F0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-Id: <20060619070055.34F2219679E@mail.bcc.com.uz> -------------------------- END HEADERS ------------------------------ ------------=_1150700462-8862-1 Content-Type: message/delivery-status Content-Disposition: inline Content-Transfer-Encoding: 7bit Content-Description: Delivery error report Reporting-MTA: dns; mail.bcc.com.uz Received-From-MTA: smtp; mail.bcc.com.uz ([127.0.0.1]) Arrival-Date: Mon, 19 Jun 2006 12:00:59 +0500 (UZT) Final-Recipient: rfc822; ipactr@bcc.com.uz Action: failed Status: 5.7.1 Diagnostic-Code: smtp; 550 5.7.1 Message content rejected, id=08862-02 - VIRUS: Worm.Mydoom.M Last-Attempt-Date: Mon, 19 Jun 2006 12:01:02 +0500 (UZT) ------------=_1150700462-8862-1 Content-Type: text/rfc822-headers Content-Disposition: inline Content-Transfer-Encoding: 7bit Content-Description: Undelivered-message headers Received: from lists.ietf.org (unknown [195.46.1.97]) by mail.bcc.com.uz (Postfix) with ESMTP id 34F2219679E for ; Mon, 19 Jun 2006 12:00:55 +0500 (UZT) From: ospf-archive@lists.ietf.org To: ugalumni@actr.bcc.com.uz Subject: ugalumni@actr.bcc.com.uz Date: Mon, 19 Jun 2006 10:00:15 +0300 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0014_77605556.D5ADB4F0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-Id: <20060619070055.34F2219679E@mail.bcc.com.uz> ------------=_1150700462-8862-1-- From ospf-bounces@ietf.org Mon Jun 19 05:22:16 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsFxS-0005XT-0M; Mon, 19 Jun 2006 05:22:10 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsFxQ-0005QS-IT for ospf@ietf.org; Mon, 19 Jun 2006 05:22:08 -0400 Received: from [203.199.83.147] (helo=rediffmail.com) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1FsFsU-0007tj-GY for ospf@ietf.org; Mon, 19 Jun 2006 05:17:04 -0400 Received: (qmail 2610 invoked by uid 510); 19 Jun 2006 08:43:37 -0000 Date: 19 Jun 2006 08:43:37 -0000 Message-ID: <20060619084337.2609.qmail@webmail25.rediffmail.com> Received: from unknown (203.126.136.220) by rediffmail.com via HTTP; 19 jun 2006 08:43:37 -0000 MIME-Version: 1.0 From: "Vivek Dubey" To: ospf@ietf.org X-Spam-Score: 2.1 (++) X-Scan-Signature: b19722fc8d3865b147c75ae2495625f2 Subject: [OSPF] Ospfv3 - Multiple Interfaces to same link X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Vivek Dubey List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============2090655595==" Errors-To: ospf-bounces@ietf.org This is a multipart mime message --===============2090655595== Content-type: multipart/alternative; boundary="Next_1150706617---0-203.199.83.147-2570" This is a multipart mime message --Next_1150706617---0-203.199.83.147-2570 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi,=0AI'll like to know the views of WG on:=0A=0A1) Motivation for support = of multiple interfaces on the same link=0A That should give some hint as = to how the "ActiveInterfaceDead" =0A event be handled=0A=0A2) And in case= "Active" interface fails, why should neighbor adjacency =0A be reformed = with scratch? Is it mandatory behavior?=0A=0AThanks=0AVivek=0A --Next_1150706617---0-203.199.83.147-2570 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

=0AHi,
=0AI'll like to know the views of WG on:
=0A
=0A1) Motiv= ation for support of multiple interfaces on the same link
=0A  Tha= t should give some hint as to how the "ActiveInterfaceDead"
= =0A  event be handled
=0A
=0A2) And in case "Active" = interface fails, why should neighbor adjacency
=0A  be reformed w= ith scratch? Is it mandatory behavior?
=0A
=0AThanks
=0AVivek
= =0A=0A

=0A

=0A=0A --Next_1150706617---0-203.199.83.147-2570-- --===============2090655595== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============2090655595==-- From ospf-bounces@ietf.org Mon Jun 19 05:57:02 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsGV9-0004iO-P7; Mon, 19 Jun 2006 05:56:59 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsGV9-0004iJ-Dj for ospf@ietf.org; Mon, 19 Jun 2006 05:56:59 -0400 Received: from ams-iport-1.cisco.com ([144.254.224.140]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FsGV8-0006oL-2h for ospf@ietf.org; Mon, 19 Jun 2006 05:56:59 -0400 Received: from ams-core-1.cisco.com ([144.254.224.150]) by ams-iport-1.cisco.com with ESMTP; 19 Jun 2006 11:56:57 +0200 Received: from cisco.com (mrwint.cisco.com [64.103.71.48]) by ams-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5J9uvrq007180; Mon, 19 Jun 2006 11:56:57 +0200 (MEST) Received: from mshand-wxp.cisco.com (ams3-vpn-dhcp4228.cisco.com [10.61.80.131]) by cisco.com (8.8.8-Cisco List Logging/8.8.8) with ESMTP id KAA15462; Mon, 19 Jun 2006 10:56:56 +0100 (BST) Message-Id: <7.0.1.0.0.20060619105457.02108aa0@cisco.com> X-Mailer: QUALCOMM Windows Eudora Version 7.0.1.0 Date: Mon, 19 Jun 2006 10:56:24 +0100 To: Acee Lindem From: mike shand Subject: Re: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" In-Reply-To: <4494534E.1060804@cisco.com> References: <00a901c68ece$65b73330$96726e0a@china.huawei.com> <4492D4D7.6070805@cisco.com> <4493FC03.9000007@cisco.com> <4494534E.1060804@cisco.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-Spam-Score: 0.0 (/) X-Scan-Signature: d0bdc596f8dd1c226c458f0b4df27a88 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org At 20:09 17/06/2006, Acee Lindem wrote: >Hi Zengjie, >Russ White wrote: > > >-----BEGIN PGP SIGNED MESSAGE----- > >Hash: SHA1 > > > > > > > > > >>Speaking as a WG member, my personal opinion is that the WG should > >>accept this document an an informational of BCP track RFC. > >> > >> > > > >This sounds fine.... Count my vote in that direction, as well. > > > > >Actually, I meant NOT accept as WG document I guess that what I get for >trying >to respond to E-mail sitting in the middle seat on a crowded plane. Here >is my >reasoning why: > >1. This behavior is not new - there are several implementations that >already reply immediately in certain situations. >2. There are many ways of doing this and it is unlikely we will >agree on the exact details of how it should be done. I, for one, >have implemented it differently than documented in this draft. and more particularly it doesn't matter from an interoperability point of view which way you do it, so this doesn't seem to be behaviour which it makes sense to standardize. Mike >I just don't think there is that much to be gained by documenting >this after the fact when there isn't agreement on the sudtleties of >operation. > >Sorry for the confusion. > >Thanks, >Acee > > >:-) > > > >Russ > > > > > > > >- -- > >riw@cisco.com CCIE <>< Grace Alone > > > >-----BEGIN PGP SIGNATURE----- > >Version: GnuPG v1.4.2.2 (MingW32) > >Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > > >iD8DBQFEk/wDER27sUhU9OQRAvY9AKCrebSk6VRgr6L/SJGB12m4ZErV0ACg1B+8 > >UKcbdXfJwL/u5nzZERpS7HI= > >=8pvC > >-----END PGP SIGNATURE----- > > > > > > > >_______________________________________________ >OSPF mailing list >OSPF@ietf.org >https://www1.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Mon Jun 19 07:34:49 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsI1k-0002M8-UL; Mon, 19 Jun 2006 07:34:44 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsI1j-0002M3-H8 for ospf@ietf.org; Mon, 19 Jun 2006 07:34:43 -0400 Received: from szxga02-in.huawei.com ([61.144.161.54] helo=huawei.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FsI1h-0002uA-K6 for ospf@ietf.org; Mon, 19 Jun 2006 07:34:43 -0400 Received: from huawei.com (szxga02-in [172.24.2.6]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1300K8ZVBHTG@szxga02-in.huawei.com> for ospf@ietf.org; Mon, 19 Jun 2006 19:45:17 +0800 (CST) Received: from huawei.com ([172.24.1.24]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1300CPAVBH7N@szxga02-in.huawei.com> for ospf@ietf.org; Mon, 19 Jun 2006 19:45:17 +0800 (CST) Received: from k49110 ([10.110.114.150]) by szxml04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J130045WV2PGC@szxml04-in.huawei.com> for ospf@ietf.org; Mon, 19 Jun 2006 19:40:02 +0800 (CST) Date: Mon, 19 Jun 2006 19:29:20 +0800 From: Zengjie Kou Subject: Re: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" To: mike shand , Acee Lindem Message-id: <001901c69393$9ba00930$96726e0a@china.huawei.com> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Mailer: Microsoft Outlook Express 6.00.2900.2180 Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-Priority: 3 X-MSMail-priority: Normal References: <00a901c68ece$65b73330$96726e0a@china.huawei.com> <4492D4D7.6070805@cisco.com> <4493FC03.9000007@cisco.com> <4494534E.1060804@cisco.com> <7.0.1.0.0.20060619105457.02108aa0@cisco.com> X-Spam-Score: 0.0 (/) X-Scan-Signature: 14582b0692e7f70ce7111d04db3781c8 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org hi, mike For interoperability of the immediate hello, i think it is necessary. If each implementation is independent, the mechanism will be not consistent and the effort of immediate hello will be small. If we standardize the implementation or mechanism, all the router supporting immediate hello will respond conformably. The effort will be great. The experiment data in the draft shows some evident benefits with immediate hello consistent interoperability. thanks Zengjie ----- Original Message ----- From: "mike shand" To: "Acee Lindem" Cc: Sent: Monday, June 19, 2006 5:56 PM Subject: Re: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" > At 20:09 17/06/2006, Acee Lindem wrote: >>Hi Zengjie, >>Russ White wrote: >> >> >-----BEGIN PGP SIGNED MESSAGE----- >> >Hash: SHA1 >> > >> > >> > >> > >> >>Speaking as a WG member, my personal opinion is that the WG should >> >>accept this document an an informational of BCP track RFC. >> >> >> >> >> > >> >This sounds fine.... Count my vote in that direction, as well. >> > >> > >>Actually, I meant NOT accept as WG document I guess that what I get for >>trying >>to respond to E-mail sitting in the middle seat on a crowded plane. Here >>is my >>reasoning why: >> >>1. This behavior is not new - there are several implementations that >>already reply immediately in certain situations. >>2. There are many ways of doing this and it is unlikely we will >>agree on the exact details of how it should be done. I, for one, >>have implemented it differently than documented in this draft. > > and more particularly it doesn't matter from an interoperability > point of view which way you do it, so > this doesn't seem to be behaviour which it makes sense to standardize. > > Mike > > > >>I just don't think there is that much to be gained by documenting >>this after the fact when there isn't agreement on the sudtleties of >>operation. >> >>Sorry for the confusion. >> >>Thanks, >>Acee >> >> >:-) >> > >> >Russ >> > >> > >> > >> >- -- >> >riw@cisco.com CCIE <>< Grace Alone >> > >> >-----BEGIN PGP SIGNATURE----- >> >Version: GnuPG v1.4.2.2 (MingW32) >> >Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org >> > >> >iD8DBQFEk/wDER27sUhU9OQRAvY9AKCrebSk6VRgr6L/SJGB12m4ZErV0ACg1B+8 >> >UKcbdXfJwL/u5nzZERpS7HI= >> >=8pvC >> >-----END PGP SIGNATURE----- >> > >> > >> > >> >>_______________________________________________ >>OSPF mailing list >>OSPF@ietf.org >>https://www1.ietf.org/mailman/listinfo/ospf > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Tue Jun 20 06:47:53 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fsdln-0006eF-GL; Tue, 20 Jun 2006 06:47:43 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fsdlm-0006eA-RI for ospf@ietf.org; Tue, 20 Jun 2006 06:47:42 -0400 Received: from psg.com ([147.28.0.62]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Fsdll-0001ar-Dt for ospf@ietf.org; Tue, 20 Jun 2006 06:47:42 -0400 Received: from [147.28.0.62] (helo=usmovnazinin.alcatel.com) by psg.com with esmtp (Exim 4.60 (FreeBSD)) (envelope-from ) id 1Fsdlk-0006G4-NG; Tue, 20 Jun 2006 10:47:40 +0000 Date: Tue, 20 Jun 2006 03:47:33 -0700 From: Alex Zinin X-Priority: 3 (Normal) Message-ID: <1941664064.20060620034733@psg.com> To: Zengjie Kou Subject: Re: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" In-Reply-To: <001901c69393$9ba00930$96726e0a@china.huawei.com> References: <00a901c68ece$65b73330$96726e0a@china.huawei.com> <4492D4D7.6070805@cisco.com> <4493FC03.9000007@cisco.com> <4494534E.1060804@cisco.com> <7.0.1.0.0.20060619105457.02108aa0@cisco.com> <001901c69393$9ba00930$96726e0a@china.huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Spam-Score: 1.2 (+) X-Scan-Signature: a1852b4f554b02e7e4548cc7928acc1f Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Alex Zinin List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Zengjie, I could only see two potential reasons for the IETF to publish a document of this kind: a) if proposed behavior affected interoperability and thus correct network behavior OR b) we wanted to encourage implementers to introduce certain optimizations so as to improve overall network experience for the user Unfortunately, the situation at hand doesn't qualify for either of the two: a) timing of hellos does not affect protocol correctness AND b) there's no need to encourage this behavior as people actually do that already. So, it has nothing to do with how good your idea is, but rather that there is no apparent need for a document. BTW, I personally don't see a need for this doc either. -- Alex http://www.psg.com/~zinin Monday, June 19, 2006, 4:29:20 AM, Zengjie Kou wrote: > hi, mike > For interoperability of the immediate hello, i think it is necessary. > If each implementation is independent, the mechanism will be not > consistent and the effort of immediate hello will be small. > If we standardize the implementation or mechanism, all the router > supporting immediate hello will respond conformably. The > effort will be great. > The experiment data in the draft shows some evident benefits with > immediate hello consistent interoperability. > thanks > Zengjie > ----- Original Message ----- > From: "mike shand" > To: "Acee Lindem" > Cc: > Sent: Monday, June 19, 2006 5:56 PM > Subject: Re: [OSPF] update > "draft-kou-ospf-immediately-replying-hello-00.txt" >> At 20:09 17/06/2006, Acee Lindem wrote: >>>Hi Zengjie, >>>Russ White wrote: >>> >>> >-----BEGIN PGP SIGNED MESSAGE----- >>> >Hash: SHA1 >>> > >>> > >>> > >>> > >>> >>Speaking as a WG member, my personal opinion is that the WG should >>> >>accept this document an an informational of BCP track RFC. >>> >> >>> >> >>> > >>> >This sounds fine.... Count my vote in that direction, as well. >>> > >>> > >>>Actually, I meant NOT accept as WG document I guess that what I get for >>>trying >>>to respond to E-mail sitting in the middle seat on a crowded plane. Here >>>is my >>>reasoning why: >>> >>>1. This behavior is not new - there are several implementations that >>>already reply immediately in certain situations. >>>2. There are many ways of doing this and it is unlikely we will >>>agree on the exact details of how it should be done. I, for one, >>>have implemented it differently than documented in this draft. >> >> and more particularly it doesn't matter from an interoperability >> point of view which way you do it, so >> this doesn't seem to be behaviour which it makes sense to standardize. >> >> Mike >> >> >> >>>I just don't think there is that much to be gained by documenting >>>this after the fact when there isn't agreement on the sudtleties of >>>operation. >>> >>>Sorry for the confusion. >>> >>>Thanks, >>>Acee >>> >>> >:-) >>> > >>> >Russ >>> > >>> > >>> > >>> >- -- >>> >riw@cisco.com CCIE <>< Grace Alone >>> > >>> >-----BEGIN PGP SIGNATURE----- >>> >Version: GnuPG v1.4.2.2 (MingW32) >>> >Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org >>> > >>> >iD8DBQFEk/wDER27sUhU9OQRAvY9AKCrebSk6VRgr6L/SJGB12m4ZErV0ACg1B+8 >>> >UKcbdXfJwL/u5nzZERpS7HI= >>> >=8pvC >>> >-----END PGP SIGNATURE----- >>> > >>> > >>> > >>> >>>_______________________________________________ >>>OSPF mailing list >>>OSPF@ietf.org >>>https://www1.ietf.org/mailman/listinfo/ospf >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Tue Jun 20 09:20:29 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fsg9a-0004dx-3d; Tue, 20 Jun 2006 09:20:26 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fsg9Z-0004dl-Fu for ospf@ietf.org; Tue, 20 Jun 2006 09:20:25 -0400 Received: from [203.199.83.135] (helo=rediffmail.com) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1Fsg9X-0007i0-C3 for ospf@ietf.org; Tue, 20 Jun 2006 09:20:25 -0400 Received: (qmail 9283 invoked by uid 510); 20 Jun 2006 13:18:34 -0000 Date: 20 Jun 2006 13:18:34 -0000 Message-ID: <20060620131834.9282.qmail@webmail45.rediffmail.com> Received: from unknown (203.126.136.220) by rediffmail.com via HTTP; 20 jun 2006 13:18:34 -0000 MIME-Version: 1.0 From: "Vivek Dubey" To: ospf@ietf.org X-Spam-Score: 0.1 (/) X-Scan-Signature: 36c793b20164cfe75332aa66ddb21196 Subject: [OSPF] Question: Intra-area Prefix Lsa X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Vivek Dubey List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0581328372==" Errors-To: ospf-bounces@ietf.org This is a multipart mime message --===============0581328372== Content-type: multipart/alternative; boundary="Next_1150809514---0-203.199.83.135-9270" This is a multipart mime message --Next_1150809514---0-203.199.83.135-9270 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi,=0AQueries tagged by for (3) cases listed below.=0A=0A1) Case1: = Transit Link=0A----------------------=0ADraft quote=0A"Each IPv6 address pr= efix that has been configured on Link L is added to the link-LSA by specify= ing values for PrefixLength, PrefixOptions, and Address Prefix fields"=0A= =0ASo prefix can be:=0Aa) Global Ipv6 address (LA bit) i.e global ipv6 addr= ess associated =0A with the link (RFC 4293 ipAddressTable)=0Ab) Global Ip= v6 Prefix i.e global ipv6 prefix associated with the link =0A (RFC 4293 i= pAddressPrefixTable)=0Ac) Further (a) can be part of (b) or independent (RF= C 4293 =0A ipAddressPrefix)=0A=0AFurther while DR builds an intra-area-pr= efix lsa associated with the network LSA=0A=0ADraft quote=0A"the list of pr= efixes in the link-LSA is copied into the intra-area-prefix-LSA that is bei= ng built. Prefixes having the NU-bit and/or LA-bit set in their Options fi= eld SHOULD NOT be copied, nor should link-local addresses be copied"=0A=0A<= vivek1> Since DR does not use prefixes having NU/LA bit set while =0A = originating intra-area-prefix lsa, why should they be made =0A p= art of link lsa originated for the transit link=0A=0A If global ipv= 6 address associated with the link, is not part =0A of global ipv6 = address prefix of the link, how would that be =0A reachable in the = Ospf domain, as DR does not advertise such =0A prefixes (LA bit set= ), in the intra-area-prefix LSA=0A=0A2) Case2: P2P link=0A-----------------= --=0AThe link prefixes can be:=0Aa) Global Ipv6 address (LA bit) i.e global= ipv6 address associated=0A with the link (RFC 4293 ipAddressTable)=0Ab) = Global Ipv6 Prefix i.e global ipv6 prefix associated with the link =0A (RF= C 4293 ipAddressPrefixTable)=0Ac) The entry (a) part of prefix (b) above (R= FC 4293 ipAddressPrefix)=0Ad) The entry (a) NOT part of prefix (b) above (R= FC 4293 =0A ipAddressPrefix being NULL)=0A=0A Should intra-area p= refix Lsa associated with the router =0A include separate entry for= :=0A a) Global Ipv6 address (LA bit)=0A b) Global Ipv6 Prefix i.e global = ipv6 prefix associated with =0A the link=0A=0A If (c) ab= ove is TRUE, should (a) be included separately or =0A just (b) woul= d do?=0A=0A3) Case3: Stub Link=0A--------------------=0AThe link prefixes c= an be:=0Aa) Global Ipv6 address (LA bit) i.e global ipv6 address associated= =0A with the link (RFC 4293 ipAddressTable)=0Ab) Global Ipv6 Prefix i.e = global ipv6 prefix associated with the link =0A (RFC 4293 ipAddressPrefix= Table)=0Ac) The entry (a) part of prefix (b) above (RFC 4293 ipAddressPrefi= x)=0Ad) The entry (a) NOT part of prefix (b) above (RFC 4293 =0A ipAddres= sPrefix being NULL)=0A=0A Should intra-area prefix Lsa associated w= ith the router =0A include separate entry for:=0A a) Global Ipv6 a= ddress (LA bit)=0A b) Global Ipv6 Prefix i.e global ipv6 prefix associated= with =0A the link=0A=0A In (c) above is TRUE, should (a= ) be included separately or =0A just (b) would do?=0A=0AThanks=0AVi= vek=0A=0A --Next_1150809514---0-203.199.83.135-9270 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

=0AHi,
=0AQueries tagged by <vivek> for (3) cases listed below.=
=0A
=0A1) Case1: Transit Link
=0A----------------------
=0ADra= ft quote
=0A"Each IPv6 address prefix that has been configured on L= ink L is added to the link-LSA by specifying values for PrefixLength, Prefi= xOptions, and Address Prefix fields"
=0A
=0ASo prefix can be:=0Aa) Global Ipv6 address (LA bit) i.e global ipv6 address associated
= =0A  with the link (RFC 4293 ipAddressTable)
=0Ab) Global Ipv6 Pre= fix i.e global ipv6 prefix associated with the link
=0A  (RFC 429= 3 ipAddressPrefixTable)
=0Ac) Further (a) can be part of (b) or independ= ent (RFC 4293
=0A  ipAddressPrefix)
=0A
=0AFurther while DR= builds an intra-area-prefix lsa associated with the network LSA
=0A
= =0ADraft quote
=0A"the list of prefixes in the link-LSA is copied i= nto the intra-area-prefix-LSA that is being built.  Prefixes having th= e NU-bit and/or LA-bit set in their Options field SHOULD NOT be copied, nor= should link-local addresses be copied"
=0A
=0A<vivek1> Si= nce DR does not use prefixes having NU/LA bit set while
=0A   = ;     originating intra-area-prefix lsa, why should they be made=
=0A        part of link lsa originated for the tr= ansit link
=0A
=0A<vivek2> If global ipv6 address associated wi= th the link, is not part
=0A        of global ipv6= address prefix of the link, how would that be
=0A      =   reachable in the Ospf domain, as DR does not advertise such
=0A=         prefixes (LA bit set), in the intra-area-prefi= x LSA
=0A
=0A2) Case2: P2P link
=0A-------------------
=0AThe l= ink prefixes can be:
=0Aa) Global Ipv6 address (LA bit) i.e global ipv6 = address associated
=0A  with the link (RFC 4293 ipAddressTable)=0Ab) Global Ipv6 Prefix i.e global ipv6 prefix associated with the link <= BR>=0A  (RFC 4293 ipAddressPrefixTable)
=0Ac) The entry (a) part of= prefix (b) above (RFC 4293 ipAddressPrefix)
=0Ad) The entry (a) NOT par= t of prefix (b) above (RFC 4293
=0A  ipAddressPrefix being NULL)<= BR>=0A
=0A<vivek3> Should intra-area prefix Lsa associated with th= e router
=0A        include separate entry for:=0A      a) Global Ipv6 address (LA bit)
=0A   = ;   b) Global Ipv6 Prefix i.e global ipv6 prefix associated with
= =0A            the link
=0A
=0A<vive= k4> If (c) above is TRUE, should (a) be included separately or
=0A&n= bsp;       just (b) would do?
=0A
=0A3) Case3: Stub L= ink
=0A--------------------
=0AThe link prefixes can be:
=0Aa) Glo= bal Ipv6 address (LA bit) i.e global ipv6 address associated
=0A  = with the link (RFC 4293 ipAddressTable)
=0Ab) Global Ipv6 Prefix i.e gl= obal ipv6 prefix associated with the link
=0A  (RFC 4293 ipAddres= sPrefixTable)
=0Ac) The entry (a) part of prefix (b) above (RFC 4293 ipA= ddressPrefix)
=0Ad) The entry (a) NOT part of prefix (b) above (RFC 4293=
=0A  ipAddressPrefix being NULL)
=0A
=0A<vivek5> Sho= uld intra-area prefix Lsa associated with the router
=0A    &= nbsp;   include separate entry for:
=0A      a) Glo= bal Ipv6 address (LA bit)
=0A      b) Global Ipv6 Prefix = i.e global ipv6 prefix associated with
=0A        &= nbsp;   the link
=0A
=0A<vivek6> In (c) above is TRUE, sho= uld (a) be included separately or
=0A        just = (b) would do?
=0A
=0AThanks
=0AVivek
=0A
=0A=0A

=0A
=0A=0A --Next_1150809514---0-203.199.83.135-9270-- --===============0581328372== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============0581328372==-- From ospf-bounces@ietf.org Tue Jun 20 10:21:32 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fsh6d-00083M-Lg; Tue, 20 Jun 2006 10:21:27 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fsh6c-000832-Cr for ospf@ietf.org; Tue, 20 Jun 2006 10:21:26 -0400 Received: from sj-iport-5.cisco.com ([171.68.10.87]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Fsh6b-0004qh-Pt for ospf@ietf.org; Tue, 20 Jun 2006 10:21:26 -0400 Received: from sj-dkim-7.cisco.com ([171.68.10.88]) by sj-iport-5.cisco.com with ESMTP; 20 Jun 2006 07:21:22 -0700 X-IronPort-AV: i="4.06,156,1149490800"; d="scan'208"; a="297746118:sNHT1529285726" Received: from sj-core-4.cisco.com (sj-core-4.cisco.com [171.68.223.138]) by sj-dkim-7.cisco.com (8.12.11/8.12.11) with ESMTP id k5KELLGe022358; Tue, 20 Jun 2006 07:21:21 -0700 Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by sj-core-4.cisco.com (8.12.10/8.12.6) with ESMTP id k5KELFcT014889; Tue, 20 Jun 2006 07:21:21 -0700 (PDT) Received: from xfe-rtp-202.amer.cisco.com ([64.102.31.21]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Tue, 20 Jun 2006 10:21:18 -0400 Received: from [10.82.216.166] ([10.82.216.166]) by xfe-rtp-202.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Tue, 20 Jun 2006 10:21:17 -0400 Message-ID: <4498045D.1060600@cisco.com> Date: Tue, 20 Jun 2006 10:21:17 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Vivek Dubey Subject: Re: [OSPF] Question: Intra-area Prefix Lsa References: <20060620131834.9282.qmail@webmail45.rediffmail.com> In-Reply-To: <20060620131834.9282.qmail@webmail45.rediffmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 20 Jun 2006 14:21:17.0975 (UTC) FILETIME=[CB9BF270:01C69474] DKIM-Signature: a=rsa-sha1; q=dns; l=4945; t=1150813281; x=1151677281; c=relaxed/simple; s=sjdkim7001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=acee@cisco.com; z=From:Acee=20Lindem=20 |Subject:Re=3A=20[OSPF]=20Question=3A=20Intra-area=20Prefix=20Lsa; X=v=3Dcisco.com=3B=20h=3DTyh88E8vdTYHQWoKGcZ5ZCvC4AU=3D; b=W5/T4nhYRdE6vU50/9KorxcgYCJ6JUHGepBZE68w91thiPITXrXGNI2f85dUzuPRZzvxtYTB uCEA+WYe706qT5XtyzJrvCNYPqp0cu6Y5wbDg1bQBSgjsSHHY5DADePX; Authentication-Results: sj-dkim-7.cisco.com; header.From=acee@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: 6640e3bbe8a4d70c4469bcdcbbf0921d Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Vivek, Vivek Dubey wrote: >Hi, >Queries tagged by for (3) cases listed below. > >1) Case1: Transit Link >---------------------- >Draft quote >"Each IPv6 address prefix that has been configured on Link L is added to the link-LSA by specifying values for PrefixLength, PrefixOptions, and Address Prefix fields" > >So prefix can be: >a) Global Ipv6 address (LA bit) i.e global ipv6 address associated > with the link (RFC 4293 ipAddressTable) >b) Global Ipv6 Prefix i.e global ipv6 prefix associated with the link > (RFC 4293 ipAddressPrefixTable) >c) Further (a) can be part of (b) or independent (RFC 4293 > ipAddressPrefix) > >Further while DR builds an intra-area-prefix lsa associated with the network LSA > >Draft quote >"the list of prefixes in the link-LSA is copied into the intra-area-prefix-LSA that is being built. Prefixes having the NU-bit and/or LA-bit set in their Options field SHOULD NOT be copied, nor should link-local addresses be copied" > > Since DR does not use prefixes having NU/LA bit set while > originating intra-area-prefix lsa, why should they be made > part of link lsa originated for the transit link > > The link-LSA has always included a complete set of prefixes for the link. In the case where the multi-access network has only one connected router, the prefixes will be advertised in the intra-area-prefix LSA associated with the router and will be more useful. Note that for all link types other than broadcast and NBMA, the prefixes in the link LSA are NOT used and the link-LSA could, in fact, be limited to the link-local address. Maybe, I should document this as an option. I've been somewhat hesitant to provide additional capabilities in the respin since the purpose is mainly to correct and clarify what is currently in RFC 2740. IMHO, we should have deprecated MOSPF which would have gotten rid of the NU and MC bits. However, there was some opposition to this - perhaps, we will be able to do it in the future. > If global ipv6 address associated with the link, is not part > of global ipv6 address prefix of the link, how would that be > reachable in the Ospf domain, as DR does not advertise such > prefixes (LA bit set), in the intra-area-prefix LSA > > A router that has a virtual link is responsible for advertising at least one address with the LA-bit set in the intra-area-prefix-LSA corresponding to the router. If it is necessary for this address to be the interface address of a multi-access link, it would be advertised there. For the other cases where the draft dictates that the LA-bit is set, the DR isn't applicable (loopback and Point-to-Multipoint interfaces). >2) Case2: P2P link >------------------- >The link prefixes can be: >a) Global Ipv6 address (LA bit) i.e global ipv6 address associated > with the link (RFC 4293 ipAddressTable) >b) Global Ipv6 Prefix i.e global ipv6 prefix associated with the link > (RFC 4293 ipAddressPrefixTable) >c) The entry (a) part of prefix (b) above (RFC 4293 ipAddressPrefix) >d) The entry (a) NOT part of prefix (b) above (RFC 4293 > ipAddressPrefix being NULL) > > Should intra-area prefix Lsa associated with the router > include separate entry for: > a) Global Ipv6 address (LA bit) > b) Global Ipv6 Prefix i.e global ipv6 prefix associated with > the link > > If (c) above is TRUE, should (a) be included separately or > just (b) would do? > > For P2P links, the global IPv6 address with the LA-bit set should only be advertised if it necessary to provide an endpoint for a virtual link. In this case, both the global prefix and the local address (i.e., /128) should be advertised. >3) Case3: Stub Link >-------------------- >The link prefixes can be: >a) Global Ipv6 address (LA bit) i.e global ipv6 address associated > with the link (RFC 4293 ipAddressTable) >b) Global Ipv6 Prefix i.e global ipv6 prefix associated with the link > (RFC 4293 ipAddressPrefixTable) >c) The entry (a) part of prefix (b) above (RFC 4293 ipAddressPrefix) >d) The entry (a) NOT part of prefix (b) above (RFC 4293 > ipAddressPrefix being NULL) > > Should intra-area prefix Lsa associated with the router > include separate entry for: > a) Global Ipv6 address (LA bit) > b) Global Ipv6 Prefix i.e global ipv6 prefix associated with > the link > > In (c) above is TRUE, should (a) be included separately or > just (b) would do? > > Same as P2P links. Thanks, Acee >Thanks >Vivek > > > > >------------------------------------------------------------------------ > >_______________________________________________ >OSPF mailing list >OSPF@ietf.org >https://www1.ietf.org/mailman/listinfo/ospf > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Tue Jun 20 13:06:40 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsjgS-0002B6-4j; Tue, 20 Jun 2006 13:06:36 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsjgQ-000266-Ow for ospf@ietf.org; Tue, 20 Jun 2006 13:06:34 -0400 Received: from rtp-iport-1.cisco.com ([64.102.122.148]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FsjgP-0000VD-GF for ospf@ietf.org; Tue, 20 Jun 2006 13:06:34 -0400 Received: from rtp-core-1.cisco.com ([64.102.124.12]) by rtp-iport-1.cisco.com with ESMTP; 20 Jun 2006 10:06:33 -0700 X-BrightmailFiltered: true X-Brightmail-Tracker: AAAAAA== X-IronPort-AV: i="4.06,157,1149490800"; d="scan'208"; a="30052235:sNHT22725364" Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by rtp-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5KH6WYL004562; Tue, 20 Jun 2006 13:06:32 -0400 (EDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Tue, 20 Jun 2006 13:06:32 -0400 Received: from [10.82.216.166] ([10.82.216.166]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Tue, 20 Jun 2006 13:06:31 -0400 Message-ID: <44982B17.9060802@cisco.com> Date: Tue, 20 Jun 2006 13:06:31 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Zengjie Kou Subject: Re: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" References: <00a901c68ece$65b73330$96726e0a@china.huawei.com> <4492D4D7.6070805@cisco.com> <4493FC03.9000007@cisco.com> <4494534E.1060804@cisco.com> <002e01c6936d$32361000$96726e0a@china.huawei.com> In-Reply-To: <002e01c6936d$32361000$96726e0a@china.huawei.com> Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 20 Jun 2006 17:06:32.0061 (UTC) FILETIME=[E0DD6AD0:01C6948B] X-Spam-Score: 0.0 (/) X-Scan-Signature: 287c806b254c6353fcb09ee0e53bbc5e Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Zengjie, Zengjie Kou wrote: >hi,Acee > For immediately replying, I'd like to know what are other implementations(including yours). > > The two that I've worked on most recently for sure. I also seem to remember someone saying their variant of Zebra had this modification. I'll let others speak for their own implementations. >Would you like to make them included in the dratf? I hope to discuss detailedly. >What's your opinion? > > As I previously stated, I'm not all the high on trying to standardize the immediate reply behavior. Thanks, Acee >thanks >Zengjie. > >----- Original Message ----- >From: "Acee Lindem" >To: "Russ White" >Cc: "Zengjie Kou" ; >Sent: Sunday, June 18, 2006 3:09 AM >Subject: Re: [OSPF] update "draft-kou-ospf-immediately-replying-hello-00.txt" > > > > >>Hi Zengjie, >>Russ White wrote: >> >> >> >>>-----BEGIN PGP SIGNED MESSAGE----- >>>Hash: SHA1 >>> >>> >>> >>> >>> >>> >>>>Speaking as a WG member, my personal opinion is that the WG should >>>>accept this document an an informational of BCP track RFC. >>>> >>>> >>>> >>>> >>>This sounds fine.... Count my vote in that direction, as well. >>> >>> >>> >>> >>Actually, I meant NOT accept as WG document I guess that what I get for >>trying >>to respond to E-mail sitting in the middle seat on a crowded plane. Here >>is my >>reasoning why: >> >>1. This behavior is not new - there are several implementations that >>already reply immediately in certain situations. >>2. There are many ways of doing this and it is unlikely we will >>agree on the exact details of how it should be done. I, for one, >>have implemented it differently than documented in this draft. >> >>I just don't think there is that much to be gained by documenting >>this after the fact when there isn't agreement on the sudtleties of >>operation. >> >>Sorry for the confusion. >> >>Thanks, >>Acee >> >> >> >>>:-) >>> >>>Russ >>> >>> >>> >>>- -- >>>riw@cisco.com CCIE <>< Grace Alone >>> >>>-----BEGIN PGP SIGNATURE----- >>>Version: GnuPG v1.4.2.2 (MingW32) >>>Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org >>> >>>iD8DBQFEk/wDER27sUhU9OQRAvY9AKCrebSk6VRgr6L/SJGB12m4ZErV0ACg1B+8 >>>UKcbdXfJwL/u5nzZERpS7HI= >>>=8pvC >>>-----END PGP SIGNATURE----- >>> >>> >>> >>> >>> > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From postmaster@lists.ietf.org Tue Jun 20 20:12:05 2006 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FsqKD-0008Mx-BE for ospf-archive@lists.ietf.org; Tue, 20 Jun 2006 20:12:05 -0400 Received: from imf24aec.mail.bellsouth.net ([205.152.59.72]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FsqKC-0002XA-3E for ospf-archive@lists.ietf.org; Tue, 20 Jun 2006 20:12:05 -0400 Received: from ibm56aec-qfe0 ([192.168.51.66]) by imf24aec.mail.bellsouth.net with ESMTP id <20060621001203.TBUC27842.imf24aec.mail.bellsouth.net@ibm56aec-qfe0> for ; Tue, 20 Jun 2006 20:12:03 -0400 Received: from ibm56aec.bellsouth.net ([67.35.253.151]) by imf16aec.mail.bellsouth.net with ESMTP id <20060621000646.IDTJ6799.imf16aec.mail.bellsouth.net@ibm56aec.bellsouth.net> for ; Tue, 20 Jun 2006 20:06:46 -0400 Received: from lists.ietf.org ([67.35.253.151]) by ibm56aec.bellsouth.net with ESMTP id <20060621000641.IWSV8102.ibm56aec.bellsouth.net@lists.ietf.org> for ; Tue, 20 Jun 2006 20:06:41 -0400 From: "Automatic Email Delivery Software" To: ospf-archive@lists.ietf.org Subject: ospf-archive@lists.ietf.org Date: Tue, 20 Jun 2006 19:05:38 -0500 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-Id: <20060621000641.IWSV8102.ibm56aec.bellsouth.net@lists.ietf.org> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="SVWYZabcefghiklmnoprstuvwyz012356789ACDE" X-BLTSYMAVREINSERT: PtIrju6Y4UTshrHSbl6Xn4ifn9cA X-Spam-Score: 4.5 (++++) X-Scan-Signature: 92df29fa99cf13e554b84c8374345c17 This is a multi-part message in MIME format. --SVWYZabcefghiklmnoprstuvwyz012356789ACDE Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit This message has been processed by Symantec AntiVirus. message.scr was infected with the malicious virus W32.Mydoom!gen and has been deleted because the file cannot be cleaned. --SVWYZabcefghiklmnoprstuvwyz012356789ACDE Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Content-Disposition: inline Received: from ibm56aec.bellsouth.net ([67.35.253.151]) by imf16aec.mail.bellsouth.net with ESMTP id <20060621000646.IDTJ6799.imf16aec.mail.bellsouth.net@ibm56aec.bellsouth.net> for ; Tue, 20 Jun 2006 20:06:46 -0400 Received: from lists.ietf.org ([67.35.253.151]) by ibm56aec.bellsouth.net with ESMTP id <20060621000641.IWSV8102.ibm56aec.bellsouth.net@lists.ietf.org> for ; Tue, 20 Jun 2006 20:06:41 -0400 From: "Automatic Email Delivery Software" To: ospf-archive@lists.ietf.org Subject: ospf-archive@lists.ietf.org Date: Tue, 20 Jun 2006 19:05:38 -0500 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0014_8AF3720F.70AA4D9F" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-Id: <20060621000641.IWSV8102.ibm56aec.bellsouth.net@lists.ietf.org> This is a multi-part message in MIME format. ------=_NextPart_000_0014_8AF3720F.70AA4D9F Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit The original message was received at Tue, 20 Jun 2006 19:05:38 -0500 from lists.ietf.org [51.113.28.249] ----- The following addresses had permanent fatal errors ----- ospf-archive@lists.ietf.org ----- Transcript of session follows ----- ... while talking to lists.ietf.org.: 554 ... 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Service unavailable ------=_NextPart_000_0014_8AF3720F.70AA4D9F Content-Type: application/octet-stream; name="message.zip" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="message.zip" UEsDBBQAAAAIALMA1TQOxcvXCAAAABYAAAALAAAAbWVzc2FnZS56aXAL8GZlY8AAAFBLAQIU ABQAAAAIALMA1TQOxcvXCAAAABYAAAALAAAAAAAAAAAAAAAAAAAAAABtZXNzYWdlLnppcFBL BQYAAAAAAQABADkAAAAxAAAAAAA= ------=_NextPart_000_0014_8AF3720F.70AA4D9F-- --SVWYZabcefghiklmnoprstuvwyz012356789ACDE-- From ospf-bounces@ietf.org Wed Jun 21 04:14:19 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fsxqk-0003Em-36; Wed, 21 Jun 2006 04:14:10 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fsxqj-0003Ed-3w for ospf@ietf.org; Wed, 21 Jun 2006 04:14:09 -0400 Received: from [203.199.83.248] (helo=rediffmail.com) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1Fsxqf-0005e6-3S for ospf@ietf.org; Wed, 21 Jun 2006 04:14:09 -0400 Received: (qmail 18146 invoked by uid 510); 21 Jun 2006 08:12:11 -0000 Date: 21 Jun 2006 08:12:11 -0000 Message-ID: <20060621081211.18145.qmail@webmail36.rediffmail.com> Received: from unknown (203.126.136.220) by rediffmail.com via HTTP; 21 jun 2006 08:12:11 -0000 MIME-Version: 1.0 From: "Vivek Dubey" To: ospf@ietf.org Subject: Re: [OSPF] Question: Intra-area Prefix Lsa X-Spam-Score: 0.5 (/) X-Scan-Signature: bf422c85703d3d847fb014987125ac48 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Vivek Dubey List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0559285279==" Errors-To: ospf-bounces@ietf.org This is a multipart mime message --===============0559285279== Content-type: multipart/alternative; boundary="Next_1150877531---0-203.199.83.248-18109" This is a multipart mime message --Next_1150877531---0-203.199.83.248-18109 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi Acee,=0APls check tagged with =0A=0AOn Tue, 20 Jun 2006 Acee Lin= dem wrote :=0AHi Vivek,=0A=0AVivek Dubey wrote:=0A=0AHi,=0AQueries tagged b= y for (3) cases listed below.=0A=0A1) Case1: Transit Link=0A-------= ---------------=0ADraft quote=0A"Each IPv6 address prefix that has been con= figured on Link L is added to the link-LSA by specifying values for PrefixL= ength, PrefixOptions, and Address Prefix fields"=0A=0ASo prefix can be:=0Aa= ) Global Ipv6 address (LA bit) i.e global ipv6 address associated with th= e link (RFC 4293 ipAddressTable)=0Ab) Global Ipv6 Prefix i.e global ipv6 pr= efix associated with the link (RFC 4293 ipAddressPrefixTable)=0Ac) Furthe= r (a) can be part of (b) or independent (RFC 4293 ipAddressPrefix)=0A=0AF= urther while DR builds an intra-area-prefix lsa associated with the network= LSA=0A=0ADraft quote=0A"the list of prefixes in the link-LSA is copied int= o the intra-area-prefix-LSA that is being built. Prefixes having the NU-bi= t and/or LA-bit set in their Options field SHOULD NOT be copied, nor should= link-local addresses be copied"=0A=0A Since DR does not use prefix= es having NU/LA bit set while originating intra-area-prefix lsa, wh= y should they be made part of link lsa originated for the transit l= ink=0A =0AThe link-LSA has always included a complete set of prefixes for = the link. In the case where=0Athe multi-access network has only one connect= ed router, the prefixes will be advertised=0Ain the intra-area-prefix LSA a= ssociated with the router and will be more useful.=0A=0A How are we= deciding to set/clear LA bit? Is it Ospf level decision?=0A Or is = it based on whether global unicast ipv6 address associated with the link is= present in "ipAddressTable" =0A (RFC4293)=0A=0A=0A So the = question is when Ospf says "prefixes for the link" where they belong from a= s per Ipv6, =0A "ipAddressPrefixTable" OR "ipAddressTable".=0A=0A = If they belong to "ipAddressTable" (prefix length 128), should LA bi= t be set?=0A If they belong to "ipAddressPrefixTable" (prefix lengt= h 0...128), should LA bit be set?=0A=0A If above is right, advertis= ing prefixes lying in "ipAddressTable" (i.e LA bit set), in link-lsa=0A = of multiaccess link (non-stub link), is not useful. Than why to includ= e prefixes with LA bit set?=0A =0A =0ANote that for all link types= other than broadcast and NBMA, the prefixes in the link LSA=0Aare NOT used= and the link-LSA could, in fact, be limited to the link-local address. May= be,=0AI should document this as an option. I've been somewhat hesitant to p= rovide additional=0Acapabilities in the respin since the purpose is mainly = to correct and clarify what is currently=0Ain RFC 2740.=0A=0A Agree= d. Only P2MP link type is applicabale for link lsa(s) other than broadcast = and NBMA and link-lsa associated =0A with that can be limited to li= nk-local address.=0A=0AIMHO, we should have deprecated MOSPF which would ha= ve gotten rid of the NU and=0AMC bits. However, there was some opposition t= o this - perhaps, we will be able to do=0Ait in the future.=0A=0A I= f global ipv6 address associated with the link, is not part of glob= al ipv6 address prefix of the link, how would that be reachable in = the Ospf domain, as DR does not advertise such prefixes (LA bit set= ), in the intra-area-prefix LSA=0A =0AA router that has a virtual link is = responsible for advertising at least one address with=0Athe LA-bit set in t= he intra-area-prefix-LSA corresponding to the router. If it is necessary=0A= for this address to be the interface address of a multi-access link, it wou= ld be advertised=0Athere. For the other cases where the draft dictates that= the LA-bit is set, the DR isn't=0Aapplicable (loopback and Point-to-Multip= oint interfaces).=0A=0A=0A=0A2) Case2: P2P link=0A-------------------=0AThe= link prefixes can be:=0Aa) Global Ipv6 address (LA bit) i.e global ipv6 ad= dress associated=0A with the link (RFC 4293 ipAddressTable)=0Ab) Global I= pv6 Prefix i.e global ipv6 prefix associated with the link (RFC 4293 ipAdd= ressPrefixTable)=0Ac) The entry (a) part of prefix (b) above (RFC 4293 ipAd= dressPrefix)=0Ad) The entry (a) NOT part of prefix (b) above (RFC 4293 ip= AddressPrefix being NULL)=0A=0A Should intra-area prefix Lsa associ= ated with the router include separate entry for:=0A a) Global Ipv6= address (LA bit)=0A b) Global Ipv6 Prefix i.e global ipv6 prefix associat= ed with the link=0A=0A If (c) above is TRUE, should (a) = be included separately or just (b) would do?=0A =0AFor P2P links, = the global IPv6 address with the LA-bit set should only be advertised if=0A= it necessary to provide an endpoint for a virtual link. In this case, both = the global prefix=0Aand the local address (i.e., /128) should be advertised= .=0A=0A3) Case3: Stub Link=0A--------------------=0AThe link prefixes can b= e:=0Aa) Global Ipv6 address (LA bit) i.e global ipv6 address associated w= ith the link (RFC 4293 ipAddressTable)=0Ab) Global Ipv6 Prefix i.e global i= pv6 prefix associated with the link (RFC 4293 ipAddressPrefixTable)=0Ac) = The entry (a) part of prefix (b) above (RFC 4293 ipAddressPrefix)=0Ad) The = entry (a) NOT part of prefix (b) above (RFC 4293 ipAddressPrefix being NU= LL)=0A=0A Should intra-area prefix Lsa associated with the router = include separate entry for:=0A a) Global Ipv6 address (LA bit)=0A b)= Global Ipv6 Prefix i.e global ipv6 prefix associated with the l= ink=0A=0A In (c) above is TRUE, should (a) be included separately o= r just (b) would do?=0A =0ASame as P2P links.=0A=0AThanks,=0AAcee= =0A=0AThanks=0AVivek --Next_1150877531---0-203.199.83.248-18109 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

=0AHi Acee,
=0APls check tagged with <repviv>
=0A
=0AOn T= ue, 20 Jun 2006 Acee Lindem wrote :
=0AHi Vivek,
=0A
=0AVivek Dube= y wrote:
=0A
=0AHi,
=0AQueries tagged by <vivek> for (3) cas= es listed below.
=0A
=0A1) Case1: Transit Link
=0A----------------= ------
=0ADraft quote
=0A"Each IPv6 address prefix that has been= configured on Link L is added to the link-LSA by specifying values for Pre= fixLength, PrefixOptions, and Address Prefix fields"
=0A
=0ASo p= refix can be:
=0Aa) Global Ipv6 address (LA bit) i.e global ipv6 address= associated  with the link (RFC 4293 ipAddressTable)
=0Ab) Global = Ipv6 Prefix i.e global ipv6 prefix associated with the link  (RFC 429= 3 ipAddressPrefixTable)
=0Ac) Further (a) can be part of (b) or independ= ent (RFC 4293  ipAddressPrefix)
=0A
=0AFurther while DR builds = an intra-area-prefix lsa associated with the network LSA
=0A
=0ADraft= quote
=0A"the list of prefixes in the link-LSA is copied into the = intra-area-prefix-LSA that is being built.  Prefixes having the NU-bit= and/or LA-bit set in their Options field SHOULD NOT be copied, nor should = link-local addresses be copied"
=0A
=0A<vivek1> Since DR d= oes not use prefixes having NU/LA bit set while        = originating intra-area-prefix lsa, why should they be made    &n= bsp;   part of link lsa originated for the transit link
=0A  =
=0AThe link-LSA has always included a complete set of prefixes for the = link. In the case where
=0Athe multi-access network has only one connect= ed router, the prefixes will be advertised
=0Ain the intra-area-prefix L= SA associated with the router and will be more useful.
=0A
=0A<rep= viv> How are we deciding to set/clear LA bit? Is it Ospf level decision?=
=0A        Or is it based on whether global unicas= t ipv6 address associated with the link is present in "ipAddressTable&= quot;
=0A        (RFC4293)
=0A
=0A
=0A&nb= sp;       So the question is when Ospf says "prefixes = for the link" where they belong from as per Ipv6,
=0A   =     "ipAddressPrefixTable" OR "ipAddressTable&qu= ot;.
=0A
=0A        If they belong to "ipAd= dressTable" (prefix length 128), should LA bit be set?
=0A  &n= bsp;     If they belong to "ipAddressPrefixTable" (pre= fix length 0...128), should LA bit be set?
=0A
=0A     = ;   If above is right, advertising prefixes lying in "ipAddressT= able" (i.e LA bit set), in link-lsa
=0A        = of multiaccess link (non-stub link), is not useful. Than why to include pr= efixes with LA bit set?
=0A       
=0A  =0ANote that for all link types other than broadcast and NBMA, the prefix= es in the link LSA
=0Aare NOT used and the link-LSA could, in fact, be l= imited to the link-local address. Maybe,
=0AI should document this as an= option. I've been somewhat hesitant to provide additional
=0Acapabiliti= es in the respin since the purpose is mainly to correct and clarify what is= currently
=0Ain RFC 2740.
=0A
=0A<repviv> Agreed. Only P2MP= link type is applicabale for link lsa(s) other than broadcast and NBMA and= link-lsa associated
=0A        with that can be l= imited to link-local address.
=0A
=0AIMHO, we should have deprecated = MOSPF which would have gotten rid of the NU and
=0AMC bits. However, the= re was some opposition to this - perhaps, we will be able to do
=0Ait in= the future.
=0A
=0A<vivek2> If global ipv6 address associated = with the link, is not part        of global ipv6 addre= ss prefix of the link, how would that be        reacha= ble in the Ospf domain, as DR does not advertise such      &= nbsp; prefixes (LA bit set), in the intra-area-prefix LSA
=0A  =0AA router that has a virtual link is responsible for advertising at leas= t one address with
=0Athe LA-bit set in the intra-area-prefix-LSA corres= ponding to the router. If it is necessary
=0Afor this address to be the = interface address of a multi-access link, it would be advertised
=0Ather= e. For the other cases where the draft dictates that the LA-bit is set, the= DR isn't
=0Aapplicable (loopback and Point-to-Multipoint interfaces).=0A
=0A
=0A
=0A2) Case2: P2P link
=0A-------------------
= =0AThe link prefixes can be:
=0Aa) Global Ipv6 address (LA bit) i.e glob= al ipv6 address associated
=0A  with the link (RFC 4293 ipAddressT= able)
=0Ab) Global Ipv6 Prefix i.e global ipv6 prefix associated with th= e link  (RFC 4293 ipAddressPrefixTable)
=0Ac) The entry (a) part of= prefix (b) above (RFC 4293 ipAddressPrefix)
=0Ad) The entry (a) NOT par= t of prefix (b) above (RFC 4293  ipAddressPrefix being NULL)
=0A=0A<vivek3> Should intra-area prefix Lsa associated with the router=         include separate entry for:
=0A  a) Gl= obal Ipv6 address (LA bit)
=0A  b) Global Ipv6 Prefix i.e global ip= v6 prefix associated with            the link=
=0A
=0A<vivek4> If (c) above is TRUE, should (a) be included s= eparately or        just (b) would do?
=0A  =0AFor P2P links, the global IPv6 address with the LA-bit set should only= be advertised if
=0Ait necessary to provide an endpoint for a virtual l= ink. In this case, both the global prefix
=0Aand the local address (i.e.= , /128) should be advertised.
=0A
=0A3) Case3: Stub Link
=0A------= --------------
=0AThe link prefixes can be:
=0Aa) Global Ipv6 address= (LA bit) i.e global ipv6 address associated  with the link (RFC 4293= ipAddressTable)
=0Ab) Global Ipv6 Prefix i.e global ipv6 prefix associa= ted with the link  (RFC 4293 ipAddressPrefixTable)
=0Ac) The entry= (a) part of prefix (b) above (RFC 4293 ipAddressPrefix)
=0Ad) The entry= (a) NOT part of prefix (b) above (RFC 4293  ipAddressPrefix being NU= LL)
=0A
=0A<vivek5> Should intra-area prefix Lsa associated wit= h the router        include separate entry for:
=0A= a) Global Ipv6 address (LA bit)
=0A b) Global Ipv6 Prefix i.e global ip= v6 prefix associated with            the link=
=0A
=0A<vivek6> In (c) above is TRUE, should (a) be included s= eparately or        just (b) would do?
=0A
=0AS= ame as P2P links.
=0A
=0AThanks,
=0AAcee
=0A
=0AThanks
= =0AVivek=0A

=0A

=0A=0A --Next_1150877531---0-203.199.83.248-18109-- --===============0559285279== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============0559285279==-- From MAILER-DAEMON Wed Jun 21 09:54:32 2006 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Ft3A8-000855-BD for ospf-archive@lists.ietf.org; Wed, 21 Jun 2006 09:54:32 -0400 Received: from imf21aec.mail.bellsouth.net ([205.152.59.69]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Ft3A7-0006Ki-3m for ospf-archive@lists.ietf.org; Wed, 21 Jun 2006 09:54:32 -0400 To: ospf-archive@lists.ietf.org From: Mail Administrator > Reply-To: Subject: Mail System Error - Returned Mail Date: Wed, 21 Jun 2006 09:54:30 -0400 Message-ID: <20060621135430.NRZP518.imf21aec.mail.bellsouth.net@imf21aec> MIME-Version: 1.0 Content-Type: multipart/report; report-type=delivery-status; Boundary="===========================_ _= 9890136(518)1150898070" X-Spam-Score: 0.0 (/) X-Scan-Signature: 36c793b20164cfe75332aa66ddb21196 --===========================_ _= 9890136(518)1150898070 Content-Type: text/plain .net 007: This e-mail message was undeliverable due to the following reason: .net 018: Each of the following recipients were rejected by a destination mail system. 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Prefixes having the NU-bit and/or LA-bit set in their Options field SHOULD NOT be copied, nor should link-local addresses be copied" > > Since DR does not use prefixes having NU/LA bit set while originating intra-area-prefix lsa, why should they be made part of link lsa originated for the transit link > >The link-LSA has always included a complete set of prefixes for the link. In the case where >the multi-access network has only one connected router, the prefixes will be advertised >in the intra-area-prefix LSA associated with the router and will be more useful. > > How are we deciding to set/clear LA bit? Is it Ospf level decision? > Or is it based on whether global unicast ipv6 address associated with the link is present in "ipAddressTable" > (RFC4293) > > The OSPFv3 specification is the only place where reference is made to the LA bit. So, I'd say that setting/clearing this bit is solely within the purview of OSPFv3. > So the question is when Ospf says "prefixes for the link" where they belong from as per Ipv6, > "ipAddressPrefixTable" OR "ipAddressTable". > > If they belong to "ipAddressTable" (prefix length 128), should LA bit be set? > If they belong to "ipAddressPrefixTable" (prefix length 0...128), should LA bit be set? > > If above is right, advertising prefixes lying in "ipAddressTable" (i.e LA bit set), in link-lsa > of multiaccess link (non-stub link), is not useful. Than why to include prefixes with LA bit set? > > >Note that for all link types other than broadcast and NBMA, the prefixes in the link LSA >are NOT used and the link-LSA could, in fact, be limited to the link-local address. Maybe, >I should document this as an option. I've been somewhat hesitant to provide additional >capabilities in the respin since the purpose is mainly to correct and clarify what is currently >in RFC 2740. > > Agreed. Only P2MP link type is applicabale for link lsa(s) other than broadcast and NBMA and link-lsa associated > with that can be limited to link-local address. > > I didn't say that - I said that advertising prefixes other than the link-local address isn't really required for link types other than multiaccess links (wheher a DR is elected). While it might be more efficient to suppress advertisement of the link-LSA altogether, it wouldn't really be backward compatible to do this (at least not without a knob), since RFC 2740, section 3.8.1.1 uses the link-LSA to obtain the next-hop for all link types. I'll update the text to say advertising other global prefixes is optionally. This was discussed once before with Manoj Gopal. Hope this helps, Acee >IMHO, we should have deprecated MOSPF which would have gotten rid of the NU and >MC bits. However, there was some opposition to this - perhaps, we will be able to do >it in the future. > > If global ipv6 address associated with the link, is not part of global ipv6 address prefix of the link, how would that be reachable in the Ospf domain, as DR does not advertise such prefixes (LA bit set), in the intra-area-prefix LSA > >A router that has a virtual link is responsible for advertising at least one address with >the LA-bit set in the intra-area-prefix-LSA corresponding to the router. If it is necessary >for this address to be the interface address of a multi-access link, it would be advertised >there. For the other cases where the draft dictates that the LA-bit is set, the DR isn't >applicable (loopback and Point-to-Multipoint interfaces). > > > >2) Case2: P2P link >------------------- >The link prefixes can be: >a) Global Ipv6 address (LA bit) i.e global ipv6 address associated > with the link (RFC 4293 ipAddressTable) >b) Global Ipv6 Prefix i.e global ipv6 prefix associated with the link (RFC 4293 ipAddressPrefixTable) >c) The entry (a) part of prefix (b) above (RFC 4293 ipAddressPrefix) >d) The entry (a) NOT part of prefix (b) above (RFC 4293 ipAddressPrefix being NULL) > > Should intra-area prefix Lsa associated with the router include separate entry for: > a) Global Ipv6 address (LA bit) > b) Global Ipv6 Prefix i.e global ipv6 prefix associated with the link > > If (c) above is TRUE, should (a) be included separately or just (b) would do? > >For P2P links, the global IPv6 address with the LA-bit set should only be advertised if >it necessary to provide an endpoint for a virtual link. In this case, both the global prefix >and the local address (i.e., /128) should be advertised. > >3) Case3: Stub Link >-------------------- >The link prefixes can be: >a) Global Ipv6 address (LA bit) i.e global ipv6 address associated with the link (RFC 4293 ipAddressTable) >b) Global Ipv6 Prefix i.e global ipv6 prefix associated with the link (RFC 4293 ipAddressPrefixTable) >c) The entry (a) part of prefix (b) above (RFC 4293 ipAddressPrefix) >d) The entry (a) NOT part of prefix (b) above (RFC 4293 ipAddressPrefix being NULL) > > Should intra-area prefix Lsa associated with the router include separate entry for: > a) Global Ipv6 address (LA bit) > b) Global Ipv6 Prefix i.e global ipv6 prefix associated with the link > > In (c) above is TRUE, should (a) be included separately or just (b) would do? > >Same as P2P links. > >Thanks, >Acee > >Thanks >Vivek > > >------------------------------------------------------------------------ > >_______________________________________________ >OSPF mailing list >OSPF@ietf.org >https://www1.ietf.org/mailman/listinfo/ospf > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Wed Jun 21 16:48:41 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Ft9cs-00060Y-NS; Wed, 21 Jun 2006 16:48:38 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Ft9cr-00060N-Jc for ospf@ietf.org; Wed, 21 Jun 2006 16:48:37 -0400 Received: from sj-iport-5.cisco.com ([171.68.10.87]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Ft9cp-0003gd-UI for ospf@ietf.org; Wed, 21 Jun 2006 16:48:37 -0400 Received: from sj-dkim-5.cisco.com ([171.68.10.79]) by sj-iport-5.cisco.com with ESMTP; 21 Jun 2006 13:48:34 -0700 X-IronPort-AV: i="4.06,163,1149490800"; d="scan'208"; a="298766777:sNHT38726294" Received: from sj-core-3.cisco.com (sj-core-3.cisco.com [171.68.223.137]) by sj-dkim-5.cisco.com (8.12.11/8.12.11) with ESMTP id k5LKmYo5009278 for ; Wed, 21 Jun 2006 13:48:34 -0700 Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by sj-core-3.cisco.com (8.12.10/8.12.6) with ESMTP id k5LKmWIw000142 for ; Wed, 21 Jun 2006 13:48:34 -0700 (PDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Wed, 21 Jun 2006 16:48:33 -0400 Received: from [10.82.216.166] ([10.82.216.166]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Wed, 21 Jun 2006 16:48:32 -0400 Message-ID: <4499B0A0.1090000@cisco.com> Date: Wed, 21 Jun 2006 16:48:32 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 CC: ospf@ietf.org Subject: Re: [OSPF] Question: Intra-area Prefix Lsa References: <20060621081211.18145.qmail@webmail36.rediffmail.com> <449985AA.1080402@cisco.com> In-Reply-To: <449985AA.1080402@cisco.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 21 Jun 2006 20:48:32.0938 (UTC) FILETIME=[0F23B0A0:01C69574] DKIM-Signature: a=rsa-sha1; q=dns; l=8534; t=1150922914; x=1151786914; c=relaxed/simple; s=sjdkim5001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=acee@cisco.com; z=From:Acee=20Lindem=20 |Subject:Re=3A=20[OSPF]=20Question=3A=20Intra-area=20Prefix=20Lsa; X=v=3Dcisco.com=3B=20h=3DTyh88E8vdTYHQWoKGcZ5ZCvC4AU=3D; b=333eaaF81z3aqbd7AO/JEYIFcehi2dy+HFwo+l1UQi/1zjGPU0k/+5wSfazxenGPb1QMOSDa HmqJSSrHxQSqk115kXhNPbMdeCG0O66MB9BjI3SCkHJGrZKgNpLFujO0; Authentication-Results: sj-dkim-5.cisco.com; header.From=acee@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: bcd240e64c427d3d3617cfc704e7fd7f X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Rather than change the RFC 2740 Link-LSA content, I have introduced a new interface configation parameter. LinkLSASuppression Indicates whether or not origination of a Link-LSA is suppressed. If set to "enabled" and the interface type is not broadcast or NBMA, the router will not originate a Link-LSA for the link. This implies that other routers on the link will ascertain the router's next-hop address using a mechanism other than the Link-LSA (see Section 3.8.2). The default value is "disabled" for interface types described in this specification. It is implicitly "disabled" if the interface type is broadcast or NBMA. Future interface types MAY specify a different default. This will satisfy Vivek's and Manoj's concern regarding the unneeded overhead of Link-LSA while affording full backward compatibility. For better or worse, this will be in the 10 version of the specification. Thanks, Acee Acee Lindem wrote: > Hi Vivek, > > Vivek Dubey wrote: > >> Hi Acee, >> Pls check tagged with >> >> > It would be easier if you used a mail client which quoted your > responses so I didn't have to hunt for the latest :^) > >> On Tue, 20 Jun 2006 Acee Lindem wrote : >> Hi Vivek, >> >> Vivek Dubey wrote: >> >> Hi, >> Queries tagged by for (3) cases listed below. >> >> 1) Case1: Transit Link >> ---------------------- >> Draft quote >> "Each IPv6 address prefix that has been configured on Link L is added >> to the link-LSA by specifying values for PrefixLength, PrefixOptions, >> and Address Prefix fields" >> >> So prefix can be: >> a) Global Ipv6 address (LA bit) i.e global ipv6 address associated >> with the link (RFC 4293 ipAddressTable) >> b) Global Ipv6 Prefix i.e global ipv6 prefix associated with the >> link (RFC 4293 ipAddressPrefixTable) >> c) Further (a) can be part of (b) or independent (RFC 4293 >> ipAddressPrefix) >> >> Further while DR builds an intra-area-prefix lsa associated with the >> network LSA >> >> Draft quote >> "the list of prefixes in the link-LSA is copied into the >> intra-area-prefix-LSA that is being built. Prefixes having the >> NU-bit and/or LA-bit set in their Options field SHOULD NOT be copied, >> nor should link-local addresses be copied" >> >> Since DR does not use prefixes having NU/LA bit set >> while originating intra-area-prefix lsa, why should they be >> made part of link lsa originated for the transit link >> >> The link-LSA has always included a complete set of prefixes for the >> link. In the case where >> the multi-access network has only one connected router, the prefixes >> will be advertised >> in the intra-area-prefix LSA associated with the router and will be >> more useful. >> >> How are we deciding to set/clear LA bit? Is it Ospf level >> decision? >> Or is it based on whether global unicast ipv6 address >> associated with the link is present in "ipAddressTable" >> (RFC4293) >> >> > The OSPFv3 specification is the only place where reference is made to the > LA bit. So, I'd say that setting/clearing this bit is solely within the > purview of OSPFv3. > >> So the question is when Ospf says "prefixes for the link" >> where they belong from as per Ipv6, "ipAddressPrefixTable" OR >> "ipAddressTable". >> >> If they belong to "ipAddressTable" (prefix length 128), >> should LA bit be set? >> If they belong to "ipAddressPrefixTable" (prefix length >> 0...128), should LA bit be set? >> >> If above is right, advertising prefixes lying in >> "ipAddressTable" (i.e LA bit set), in link-lsa >> of multiaccess link (non-stub link), is not useful. Than why >> to include prefixes with LA bit set? >> >> Note that for all link types other than broadcast and NBMA, the >> prefixes in the link LSA >> are NOT used and the link-LSA could, in fact, be limited to the >> link-local address. Maybe, >> I should document this as an option. I've been somewhat hesitant to >> provide additional >> capabilities in the respin since the purpose is mainly to correct and >> clarify what is currently >> in RFC 2740. >> >> Agreed. Only P2MP link type is applicabale for link lsa(s) >> other than broadcast and NBMA and link-lsa associated with >> that can be limited to link-local address. >> >> > I didn't say that - I said that advertising prefixes other than the > link-local address > isn't really required for link types other than multiaccess links > (wheher a DR is > elected). While it might be more efficient to suppress advertisement > of the > link-LSA altogether, it wouldn't really be backward compatible to do this > (at least not without a knob), since RFC 2740, section 3.8.1.1 uses > the link-LSA > to obtain the next-hop for all link types. I'll update the text to say > advertising > other global prefixes is optionally. This was discussed once before with > Manoj Gopal. > > Hope this helps, > Acee > >> IMHO, we should have deprecated MOSPF which would have gotten rid of >> the NU and >> MC bits. However, there was some opposition to this - perhaps, we >> will be able to do >> it in the future. >> >> If global ipv6 address associated with the link, is not >> part of global ipv6 address prefix of the link, how would >> that be reachable in the Ospf domain, as DR does not >> advertise such prefixes (LA bit set), in the >> intra-area-prefix LSA >> >> A router that has a virtual link is responsible for advertising at >> least one address with >> the LA-bit set in the intra-area-prefix-LSA corresponding to the >> router. If it is necessary >> for this address to be the interface address of a multi-access link, >> it would be advertised >> there. For the other cases where the draft dictates that the LA-bit >> is set, the DR isn't >> applicable (loopback and Point-to-Multipoint interfaces). >> >> >> >> 2) Case2: P2P link >> ------------------- >> The link prefixes can be: >> a) Global Ipv6 address (LA bit) i.e global ipv6 address associated >> with the link (RFC 4293 ipAddressTable) >> b) Global Ipv6 Prefix i.e global ipv6 prefix associated with the >> link (RFC 4293 ipAddressPrefixTable) >> c) The entry (a) part of prefix (b) above (RFC 4293 ipAddressPrefix) >> d) The entry (a) NOT part of prefix (b) above (RFC 4293 >> ipAddressPrefix being NULL) >> >> Should intra-area prefix Lsa associated with the >> router include separate entry for: >> a) Global Ipv6 address (LA bit) >> b) Global Ipv6 Prefix i.e global ipv6 prefix associated >> with the link >> >> If (c) above is TRUE, should (a) be included separately >> or just (b) would do? >> >> For P2P links, the global IPv6 address with the LA-bit set should >> only be advertised if >> it necessary to provide an endpoint for a virtual link. In this case, >> both the global prefix >> and the local address (i.e., /128) should be advertised. >> >> 3) Case3: Stub Link >> -------------------- >> The link prefixes can be: >> a) Global Ipv6 address (LA bit) i.e global ipv6 address associated >> with the link (RFC 4293 ipAddressTable) >> b) Global Ipv6 Prefix i.e global ipv6 prefix associated with the >> link (RFC 4293 ipAddressPrefixTable) >> c) The entry (a) part of prefix (b) above (RFC 4293 ipAddressPrefix) >> d) The entry (a) NOT part of prefix (b) above (RFC 4293 >> ipAddressPrefix being NULL) >> >> Should intra-area prefix Lsa associated with the >> router include separate entry for: >> a) Global Ipv6 address (LA bit) >> b) Global Ipv6 Prefix i.e global ipv6 prefix associated >> with the link >> >> In (c) above is TRUE, should (a) be included separately >> or just (b) would do? >> >> Same as P2P links. >> >> Thanks, >> Acee >> >> Thanks >> Vivek >> >> >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> >> > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Wed Jun 21 18:20:50 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtB3z-00060K-NL; Wed, 21 Jun 2006 18:20:43 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtB3y-0005zB-Ij for ospf@ietf.org; Wed, 21 Jun 2006 18:20:42 -0400 Received: from sj-iport-4.cisco.com ([171.68.10.86]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FtB3x-00044E-54 for ospf@ietf.org; Wed, 21 Jun 2006 18:20:42 -0400 Received: from sj-dkim-5.cisco.com ([171.68.10.79]) by sj-iport-4.cisco.com with ESMTP; 21 Jun 2006 15:20:40 -0700 X-IronPort-AV: i="4.06,163,1149490800"; d="scan'208"; a="1830201866:sNHT572682214" Received: from sj-core-3.cisco.com (sj-core-3.cisco.com [171.68.223.137]) by sj-dkim-5.cisco.com (8.12.11/8.12.11) with ESMTP id k5LMKcEC006471; Wed, 21 Jun 2006 15:20:38 -0700 Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by sj-core-3.cisco.com (8.12.10/8.12.6) with ESMTP id k5LMKbIs002089; Wed, 21 Jun 2006 15:20:38 -0700 (PDT) Received: from xfe-rtp-202.amer.cisco.com ([64.102.31.21]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Wed, 21 Jun 2006 18:20:37 -0400 Received: from [10.82.216.166] ([10.82.216.166]) by xfe-rtp-202.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Wed, 21 Jun 2006 18:20:37 -0400 Message-ID: <4499C634.5070107@cisco.com> Date: Wed, 21 Jun 2006 18:20:36 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: OSPF List Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 21 Jun 2006 22:20:37.0346 (UTC) FILETIME=[EBF17420:01C69580] DKIM-Signature: a=rsa-sha1; q=dns; l=4187; t=1150928438; x=1151792438; c=relaxed/simple; s=sjdkim5001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=acee@cisco.com; z=From:Acee=20Lindem=20 |Subject:OSPF=20WG=20Charter=20Update=20Straw=20Man; X=v=3Dcisco.com=3B=20h=3DZ4lFyNf74vvg6l0ShqVN4/QU0rM=3D; b=Cs8m8qwfcDfRw94oVBjFTQBY+ayJv5ZnLkrMKtevA0T5Z+mppElbu8nuE62bzafREjbg3uR9 puXX3OBxfmOn26nX6U4mo0JEQOfoApA4qLMokwHux2MAw76P4Ob6fMyK; Authentication-Results: sj-dkim-5.cisco.com; header.From=acee@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: 25620135586de10c627e3628c432b04a Cc: Ross Callon Subject: [OSPF] OSPF WG Charter Update Straw Man X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Here is a straw man for the WG charter update. Most of what we've included are things we've already been working on. This wouldn't preclude work on smaller items which aren't specifically enumerated in the charter milestones. Charter Update Description of Working Group: The OSPF Working develops and documents extensions and bug fixes to the OSPF protocols as well as documenting OSPF usage scenarios. The specific protocol work items area listed in the Goals and Milestones section below. Additional major work items will require rechartering. Goals and Milestones: Done Gather operational experience with the OSPF protocol and submit the document as an Informational RFC. Done Develop multiple implementations, and test against each other. Done Design the routing protocol, and write its specification. Done Obtain performance data for the protocol. Done Make changes to the specification (if necessary) and publish the protocol as a Draft Standard RFC. Done Submit OSPF for IPv6 to IESG for consideration as a Standard. Done Update the OSPF NSSA option specified in RFC 1587 and submit to IESG for consideration as a Proposed Standard Done Develop Traffic Engineering extensions for OSPFv2 and submit it to the IESG as a Proposed Standard Done Submit to IESG a document which updates RFC 1793 allowing detection of demand circuit neighbors whose OSPF process has exited. Done Submit to IESG a BCP advocating that OSPF LSA refreshes be spread out over time Done Develop a hitless restart mechanism for OSPF and submit it to the IESG as a Proposed Standard. Done Document Alternative ABR implementations and submit ti IESG as an Informational RFC Done Extend the hitless restart mechanism to OSPFv3 and submit it to the IESG as a Proposed Standard Done Develop Traffic Engineering extensions for OSPFv3 and submit it to the IESG as a Proposed Standard. Done Submit to IESG a BCP advocating that OSPF Hellos be given preference over other OSPF control traffic. Done Update OSPFv2 MIB and submit to IESG as a Standard, replacing RFC 1850 Done Specify IPSEC usage with OSPFv3 and submit to IESG for consideration as a Proposed Standard July 2007 Develop OSPF for IPv6 MIB and submit to IESG for consideration as a Proposed Standard. Mar 2007 Develop an IPSec based authentication for OSPFv2 and submit to IESG for consideration as a Proposed Standard. Done Develop OSPFv2 Multiple Topology Routing (MTR) specification and submit to IESG for consideration as a Proposed Standard. Done Develop OSPF Capabilities Advertisement specification and submit to IESG for consideration as a Proposed Standard. Mar 2007 Develop a multiple instance OSPFv3 Multiple Topology Routing (MTR) specification and submit to IESG for consideration as a Proposed Standard. Mar 2007 Advance Link Local Signalling (LLS) from experimental status and submit to IESG for consideration as a Proposed Standard. July 2007 Develop a OSPFv2 Multiple Topology Routing (MTR) MIB specification and submit to IESG for consideration as a Proposed Standard. July 2007 Develop OSPFv3 protocol enhancements to reduce flooding overhead and adjacencies in a MANET environment for consideration as a Proposed Standard. Nov 2007 Develop OSPFv2 protocol enhancement for optionally associating additional attributes with routes/link and submit to IESG for consideration as a Proposed Standard. Mar 2008 Develop a single instance OSPFv3 Multiple Topology Routing (MTR) specification and submit to IESG for consideration as a Proposed Standard. Thanks, Acee and Rohit _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From postmaster@lists.ietf.org Thu Jun 22 05:30:07 2006 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtLVn-00036r-Qb for ospf-archive@lists.ietf.org; Thu, 22 Jun 2006 05:30:07 -0400 Received: from imf19aec.mail.bellsouth.net ([205.152.59.67]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FtLVm-0007ZZ-Ig for ospf-archive@lists.ietf.org; Thu, 22 Jun 2006 05:30:07 -0400 Received: from ibm65aec-qfe4 ([192.168.51.75]) by imf19aec.mail.bellsouth.net with ESMTP id <20060622093006.QDHZ5315.imf19aec.mail.bellsouth.net@ibm65aec-qfe4> for ; Thu, 22 Jun 2006 05:30:06 -0400 Received: from ibm65aec.bellsouth.net ([68.222.5.51]) by imf22aec.mail.bellsouth.net with ESMTP id <20060622092644.ZFTJ21800.imf22aec.mail.bellsouth.net@ibm65aec.bellsouth.net> for ; Thu, 22 Jun 2006 05:26:44 -0400 Received: from lists.ietf.org ([68.222.5.51]) by ibm65aec.bellsouth.net with ESMTP id <20060622092625.SDMX3156.ibm65aec.bellsouth.net@lists.ietf.org> for ; Thu, 22 Jun 2006 05:26:25 -0400 From: "Bounced mail" To: ospf-archive@lists.ietf.org Subject: RETURNED MAIL: SEE TRANSCRIPT FOR DETAILS Date: Thu, 22 Jun 2006 04:25:23 -0500 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-Id: <20060622092625.SDMX3156.ibm65aec.bellsouth.net@lists.ietf.org> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="VXYabcdeghijklnopqrsuvwxyz12345689ABCDEG" X-BLTSYMAVREINSERT: SR6/Y8CaxERV8IuB+mF4kpZyTFUA X-Spam-Score: 3.5 (+++) X-Scan-Signature: 6cca30437e2d04f45110f2ff8dc1b1d5 This is a multi-part message in MIME format. --VXYabcdeghijklnopqrsuvwxyz12345689ABCDEG Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit This message has been processed by Symantec AntiVirus. text.com was infected with the malicious virus W32.Mydoom!gen and has been deleted because the file cannot be cleaned. --VXYabcdeghijklnopqrsuvwxyz12345689ABCDEG Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Content-Disposition: inline Received: from ibm65aec.bellsouth.net ([68.222.5.51]) by imf22aec.mail.bellsouth.net with ESMTP id <20060622092644.ZFTJ21800.imf22aec.mail.bellsouth.net@ibm65aec.bellsouth.net> for ; Thu, 22 Jun 2006 05:26:44 -0400 Received: from lists.ietf.org ([68.222.5.51]) by ibm65aec.bellsouth.net with ESMTP id <20060622092625.SDMX3156.ibm65aec.bellsouth.net@lists.ietf.org> for ; Thu, 22 Jun 2006 05:26:25 -0400 From: "Bounced mail" To: ospf-archive@lists.ietf.org Subject: RETURNED MAIL: SEE TRANSCRIPT FOR DETAILS Date: Thu, 22 Jun 2006 04:25:23 -0500 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0002_A9B7B47B.E0DC90B6" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-Id: <20060622092625.SDMX3156.ibm65aec.bellsouth.net@lists.ietf.org> This is a multi-part message in MIME format. ------=_NextPart_000_0002_A9B7B47B.E0DC90B6 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit The message was undeliverable due to the following reason(s): Your message could not be delivered because the destination computer was not reachable within the allowed queue period. 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The following recipients could not receive this message: Please reply to postmaster@lists.ietf.org if you feel this message to be in error. ------=_NextPart_000_0002_A9B7B47B.E0DC90B6 Content-Type: application/octet-stream; name="text.zip" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="text.zip" UEsFBgAAAAAAAAAAAAAAAAAAAAAAAA== ------=_NextPart_000_0002_A9B7B47B.E0DC90B6-- --VXYabcdeghijklnopqrsuvwxyz12345689ABCDEG-- From ospf-bounces@ietf.org Thu Jun 22 06:51:59 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtMmr-0005er-FR; Thu, 22 Jun 2006 06:51:49 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtMmq-0005em-P8 for ospf@ietf.org; Thu, 22 Jun 2006 06:51:48 -0400 Received: from astro.systems.pipex.net ([62.241.163.6]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FtMmp-00037b-Ek for ospf@ietf.org; Thu, 22 Jun 2006 06:51:48 -0400 Received: from pc6 (1Cust206.tnt109.lnd4.gbr.da.uu.net [62.188.172.206]) by astro.systems.pipex.net (Postfix) with SMTP id 7B037E0003C1; Thu, 22 Jun 2006 11:51:44 +0100 (BST) Message-ID: <064801c695e0$ec78f200$0601a8c0@pc6> From: "Tom Petch" To: "Acee Lindem" , "Vivek Dubey" References: <20060621081211.18145.qmail@webmail36.rediffmail.com> <449985AA.1080402@cisco.com> Subject: Re: [OSPF] Hunt for the latest was Question: Intra-area Prefix Lsa Date: Thu, 22 Jun 2006 10:26:33 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Spam-Score: 0.0 (/) X-Scan-Signature: 52e1467c2184c31006318542db5614d5 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Tom Petch List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org ----- Original Message ----- From: "Acee Lindem" To: "Vivek Dubey" Cc: Sent: Wednesday, June 21, 2006 7:45 PM Subject: Re: [OSPF] Question: Intra-area Prefix Lsa > Hi Vivek, > > Vivek Dubey wrote: > > >Hi Acee, > >Pls check tagged with > > > > > It would be easier if you used a mail client which quoted your > responses so I didn't have to hunt for the latest :^) > Nothing whatsoever to do with OSPF but I do agree; I waste ages trying to work out who is saying what in some exchanges. I find that for my e-mail client, the ubiquitous Windows, the key is the Content-Transfer-Encoding: which, when set to 'quoted-printable', suppresses the markers. I totally fail to see the logic in this, I cannot find any way to alter this behaviour, but when I really care, I edit the incoming e-mail to have a different Content-Transfer-Encoding - it is usually doing no more than including redundant carriage returns - before replying. (But then I am a perfectionist:-) Tom Petch /listinfo/ospf _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Thu Jun 22 08:14:06 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtO4P-0003Dz-Fq; Thu, 22 Jun 2006 08:14:01 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtO4N-0003CQ-VT for ospf@ietf.org; Thu, 22 Jun 2006 08:13:59 -0400 Received: from [203.199.83.146] (helo=rediffmail.com) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1FtO4M-0007dg-5Z for ospf@ietf.org; Thu, 22 Jun 2006 08:13:59 -0400 Received: (qmail 21194 invoked by uid 510); 22 Jun 2006 11:59:34 -0000 Date: 22 Jun 2006 11:59:34 -0000 Message-ID: <20060622115934.21192.qmail@webmail24.rediffmail.com> Received: from unknown (203.126.136.223) by rediffmail.com via HTTP; 22 jun 2006 11:59:34 -0000 MIME-Version: 1.0 From: "Vivek Dubey" To: "Acee Lindem" X-Spam-Score: 0.9 (/) X-Scan-Signature: f607d15ccc2bc4eaf3ade8ffa8af02a0 Cc: ospf@ietf.org Subject: [OSPF] Re:Question: Intra-area Prefix Lsa X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Vivek Dubey List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1760142657==" Errors-To: ospf-bounces@ietf.org This is a multipart mime message --===============1760142657== Content-type: multipart/alternative; boundary="Next_1150977574---0-203.199.83.146-21123" This is a multipart mime message --Next_1150977574---0-203.199.83.146-21123 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi Acee,=0A"Router X" (Link L1): Associated addresses/Prefixes are defined = below=0A Linklocal Address: fe80::01/128=0A IPV6 Global unicast address: 02= 02::1/128=0A IPv6 Global unicast address: 0303::1/128=0A IPv6 Global Prefix= : 0303:0000:0000:0001/64=0A=0AWe have a multi-access link (with a DR "Route= r Y" present on the link)=0A=0AWhen "Router X" originates a link LSA for "L= ink L1" it includes following Prefixes:=0A Prefix1: 0303:0000:0000:0001/64 = ; PrefixOption: 0=0A Prefix2: 0303::1/128 ; PrefixOption: LA-bit set=0A Pre= fix3: 0202::1/128 ; PrefixOption: LA-bit set=0A=0AWhen "Router Y", DR in th= is case, originates a intra-area-prefix LSA associated with the transit lin= k:=0APrefixes of "Router X", that are included:=0A Prefix1: 0303:0000:0000:= 0001/64 ; PrefixOption: 0=0A=0A Since DR does not include prefixes = with LA-bit set,in intra-area-prefix LSA associated with transit link, why = to include them in link-lsa for multiaccess links=0A=0A Since DR do= es not include a prefix with LA-bit set, in intra-area-prefix LSA associate= d with transit link, the =0A=0APrefix 0202::1/128, remains unreachable in O= spf domain (suppose no VL is present). Is that right?=0A=0AThanks=0AVivek = =A0=0A --Next_1150977574---0-203.199.83.146-21123 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

=0AHi Acee,
=0A"Router X" (Link L1): Associated addresses/P= refixes are defined below
=0A     Linklocal Address: fe80= ::01/128
=0A     IPV6 Global unicast address: 0202::1/128=
=0A     IPv6 Global unicast address: 0303::1/128
=0A&= nbsp;    IPv6 Global Prefix: 0303:0000:0000:0001/64
=0A
=0A= We have a multi-access link (with a DR "Router Y" present on the = link)
=0A
=0AWhen "Router X" originates a link LSA for &quo= t;Link L1" it includes following Prefixes:
=0A     P= refix1: 0303:0000:0000:0001/64 ; PrefixOption: 0
=0A     = Prefix2: 0303::1/128 ; PrefixOption: LA-bit set
=0A     P= refix3: 0202::1/128 ; PrefixOption: LA-bit set
=0A
=0AWhen "Rout= er Y", DR in this case, originates a intra-area-prefix LSA associated = with the transit link:
=0APrefixes of "Router X", that are inc= luded:
=0A     Prefix1: 0303:0000:0000:0001/64 ; PrefixOp= tion: 0
=0A
=0A<vivek1> Since DR does not include prefixes with= LA-bit set,in intra-area-prefix LSA associated with transit link, why to i= nclude them in link-lsa for multiaccess links
=0A
=0A<vivek2> S= ince DR does not include a prefix with LA-bit set, in intra-area-prefix LSA= associated with transit link, the
=0A
=0APrefix 0202::1/128, remain= s unreachable in Ospf domain (suppose no VL is present). Is that right?
= =0A
=0AThanks
=0AVivek 
=0A=0A

=0A

=0A=0A --Next_1150977574---0-203.199.83.146-21123-- --===============1760142657== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============1760142657==-- From ospf-bounces@ietf.org Thu Jun 22 15:34:29 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtUwY-0003cc-Ey; Thu, 22 Jun 2006 15:34:22 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtUwW-0003cX-VU for ospf@ietf.org; Thu, 22 Jun 2006 15:34:20 -0400 Received: from rtp-iport-2.cisco.com ([64.102.122.149]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FtUwU-00036X-Vd for ospf@ietf.org; Thu, 22 Jun 2006 15:34:20 -0400 Received: from rtp-core-1.cisco.com ([64.102.124.12]) by rtp-iport-2.cisco.com with ESMTP; 22 Jun 2006 15:34:19 -0400 X-IronPort-AV: i="4.06,166,1149480000"; d="scan'208"; a="90812529:sNHT30076428" Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5MJYIYL001424; Thu, 22 Jun 2006 15:34:18 -0400 (EDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Thu, 22 Jun 2006 15:34:18 -0400 Received: from [10.82.224.99] ([10.82.224.99]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Thu, 22 Jun 2006 15:34:18 -0400 Message-ID: <449AF0B9.4020304@cisco.com> Date: Thu, 22 Jun 2006 15:34:17 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Vivek Dubey References: <20060622115934.21192.qmail@webmail24.rediffmail.com> In-Reply-To: <20060622115934.21192.qmail@webmail24.rediffmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 22 Jun 2006 19:34:18.0207 (UTC) FILETIME=[DA536EF0:01C69632] X-Spam-Score: 0.0 (/) X-Scan-Signature: 50a516d93fd399dc60588708fd9a3002 Cc: ospf@ietf.org Subject: [OSPF] Re: Question: Intra-area Prefix Lsa X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Vivek, Vivek Dubey wrote: >Hi Acee, >"Router X" (Link L1): Associated addresses/Prefixes are defined below > Linklocal Address: fe80::01/128 > IPV6 Global unicast address: 0202::1/128 > IPv6 Global unicast address: 0303::1/128 > IPv6 Global Prefix: 0303:0000:0000:0001/64 > >We have a multi-access link (with a DR "Router Y" present on the link) > >When "Router X" originates a link LSA for "Link L1" it includes following Prefixes: > Prefix1: 0303:0000:0000:0001/64 ; PrefixOption: 0 > Prefix2: 0303::1/128 ; PrefixOption: LA-bit set > Prefix3: 0202::1/128 ; PrefixOption: LA-bit set > >When "Router Y", DR in this case, originates a intra-area-prefix LSA associated with the transit link: >Prefixes of "Router X", that are included: > Prefix1: 0303:0000:0000:0001/64 ; PrefixOption: 0 > > Since DR does not include prefixes with LA-bit set,in intra-area-prefix LSA associated with transit link, why to include them in link-lsa for multiaccess links > > Since DR does not include a prefix with LA-bit set, in intra-area-prefix LSA associated with transit link, the > >Prefix 0202::1/128, remains unreachable in Ospf domain (suppose no VL is present). Is that right? > > I'll state that these LA-bit set prefixes SHOULD be advertised in the intra-area-prefix-LSA associated with the router. It doesn't really make sense to advertisement them in an intra-area-prefix LSA associated with the network-LSA. I still don't think I want to prune the contents of Link-LSAs. I've added the "knob" to suppress origination where they aren't needed and I think that will satisfy any requirement for overhead reduction. Thanks, Acee >Thanks >Vivek > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 23 01:03:06 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Ftdot-0004mo-9G; Fri, 23 Jun 2006 01:03:03 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Ftdor-0004mj-JN for ospf@ietf.org; Fri, 23 Jun 2006 01:03:01 -0400 Received: from [203.199.83.248] (helo=rediffmail.com) by ietf-mx.ietf.org with smtp (Exim 4.43) id 1Ftdop-00043Q-Dr for ospf@ietf.org; Fri, 23 Jun 2006 01:03:01 -0400 Received: (qmail 12406 invoked by uid 510); 23 Jun 2006 05:01:05 -0000 Date: 23 Jun 2006 05:01:04 -0000 Message-ID: <20060623050104.12404.qmail@webmail36.rediffmail.com> Received: from unknown (203.126.136.223) by rediffmail.com via HTTP; 23 jun 2006 05:01:04 -0000 MIME-Version: 1.0 From: "Vivek Dubey" To: "Acee Lindem" X-Spam-Score: 0.5 (/) X-Scan-Signature: 32b73d73e8047ed17386f9799119ce43 Cc: ospf@ietf.org Subject: [OSPF] Re: Question: Intra-area Prefix Lsa X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Vivek Dubey List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0533125130==" Errors-To: ospf-bounces@ietf.org This is a multipart mime message --===============0533125130== Content-type: multipart/alternative; boundary="Next_1151038864---0-203.199.83.248-12377" This is a multipart mime message --Next_1151038864---0-203.199.83.248-12377 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi Acee,=0APls check inline. =A0=0A=0A=0AOn Fri, 23 Jun 2006 Acee Lindem wr= ote :=0A>Hi Vivek,=0A>=0A>Vivek Dubey wrote:=0A>=0A>>Hi Acee,=0A>>"Router X= " (Link L1): Associated addresses/Prefixes are defined below=0A>>Linklocal = Address: fe80::01/128=0A>>IPV6 Global unicast address: 0202::1/128=0A>>IPv6= Global unicast address: 0303::1/128=0A>>IPv6 Global Prefix: 0303:0000:0000= :0001/64=0A>>=0A>>We have a multi-access link (with a DR "Router Y" present= on the link)=0A>>=0A>>When "Router X" originates a link LSA for "Link L1" = it includes following Prefixes:=0A>>Prefix1: 0303:0000:0000:0001/64 ; Prefi= xOption: 0=0A>>Prefix2: 0303::1/128 ; PrefixOption: LA-bit set=0A>>Prefix3:= 0202::1/128 ; PrefixOption: LA-bit set=0A>>=0A>>When "Router Y", DR in thi= s case, originates a intra-area-prefix LSA associated with the transit link= :=0A>>Prefixes of "Router X", that are included:=0A>>Prefix1: 0303:0000:000= 0:0001/64 ; PrefixOption: 0=0A>>=0A>> Since DR does not include pre= fixes with LA-bit set,in intra-area-prefix LSA associated with transit link= , why to include them in link-lsa for multiaccess links=0A>>=0A>> S= ince DR does not include a prefix with LA-bit set, in intra-area-prefix LSA= associated with transit link, the =0A>>Prefix 0202::1/128, remains unreach= able in Ospf domain (suppose no VL is present). Is that right?=0A>> =0A>I'= ll state that these LA-bit set prefixes SHOULD be advertised in the=0A>intr= a-area-prefix-LSA associated with the router. It doesn't really make sense = to=0A>advertisement them in an intra-area-prefix LSA associated with the ne= twork-LSA.=0A>=0A=0AAgreed. But as of now it's not allowed as per "draft-9"= . =0ATo quote=0A"If the interface has been reported in RTX's router-LSA as = a Type 2 link description (link to transit network), its prefixes are not i= ncluded (they will be included in the intra-area-prefix-LSA for the link in= stead)."=0A=0AShould we re-phrase above?=0A=0A=0A>I still don't think I wan= t to prune the contents of Link-LSAs. I've added the "knob" to=0A>suppress = origination where they aren't needed and I think that will satisfy any requ= irement=0A>for overhead reduction.=0A=0AAgreed. It takes care of my concern= .=0A=0A>=0A>Thanks,=0A>Acee=0A>=0A>>Thanks=0A>>Vivek =0A>> =0A=0A-Vivek= =0A=0A --Next_1151038864---0-203.199.83.248-12377 Content-type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

=0AHi Acee,
=0APls check inline. 
=0A
=0A
=0AOn Fri, 2= 3 Jun 2006 Acee Lindem wrote :
=0A>Hi Vivek,
=0A>
=0A>Viv= ek Dubey wrote:
=0A>
=0A>>Hi Acee,
=0A>>"Route= r X" (Link L1): Associated addresses/Prefixes are defined below
=0A= >>Linklocal Address: fe80::01/128
=0A>>IPV6 Global unicast a= ddress: 0202::1/128
=0A>>IPv6 Global unicast address: 0303::1/128<= BR>=0A>>IPv6 Global Prefix: 0303:0000:0000:0001/64
=0A>>
= =0A>>We have a multi-access link (with a DR "Router Y" pres= ent on the link)
=0A>>
=0A>>When "Router X" ori= ginates a link LSA for "Link L1" it includes following Prefixes:<= BR>=0A>>Prefix1: 0303:0000:0000:0001/64 ; PrefixOption: 0
=0A>&= gt;Prefix2: 0303::1/128 ; PrefixOption: LA-bit set
=0A>>Prefix3: 0= 202::1/128 ; PrefixOption: LA-bit set
=0A>>
=0A>>When &qu= ot;Router Y", DR in this case, originates a intra-area-prefix LSA asso= ciated with the transit link:
=0A>>Prefixes of "Router X"= ;, that are included:
=0A>>Prefix1: 0303:0000:0000:0001/64 ; Prefi= xOption: 0
=0A>>
=0A>><vivek1> Since DR does not in= clude prefixes with LA-bit set,in intra-area-prefix LSA associated with tra= nsit link, why to include them in link-lsa for multiaccess links
=0A>= >
=0A>><vivek2> Since DR does not include a prefix with L= A-bit set, in intra-area-prefix LSA associated with transit link, the
= =0A>>Prefix 0202::1/128, remains unreachable in Ospf domain (suppose = no VL is present). Is that right?
=0A>> 
=0A>I'll stat= e that these LA-bit set prefixes SHOULD be advertised in the
=0A>intr= a-area-prefix-LSA associated with the router. It doesn't really make sense = to
=0A>advertisement them in an intra-area-prefix LSA associated with= the network-LSA.
=0A>
=0A
=0AAgreed. But as of now it's not al= lowed as per "draft-9".
=0ATo quote
=0A"If the interf= ace has been reported in RTX's router-LSA as a Type 2 link description (lin= k to transit network), its prefixes are not included (they will be included= in the intra-area-prefix-LSA for the link instead)."
=0A
=0ASho= uld we re-phrase above?
=0A
=0A
=0A>I still don't think I want = to prune the contents of Link-LSAs. I've added the "knob" to
= =0A>suppress origination where they aren't needed and I think that will = satisfy any requirement
=0A>for overhead reduction.
=0A
=0AAgre= ed. It takes care of my concern.
=0A
=0A>
=0A>Thanks,
=0A= >Acee
=0A>
=0A>>Thanks
=0A>>Vivek 
=0A&= gt;> 
=0A
=0A-Vivek
=0A
=0A=0A

=0A

=0A=0A --Next_1151038864---0-203.199.83.248-12377-- --===============0533125130== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf --===============0533125130==-- From ospf-bounces@ietf.org Fri Jun 23 10:49:50 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtmyX-0002c0-2n; Fri, 23 Jun 2006 10:49:37 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtmyV-0002bv-VZ for ospf@ietf.org; Fri, 23 Jun 2006 10:49:35 -0400 Received: from sj-iport-4.cisco.com ([171.68.10.86]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FtmyU-0007bM-KN for ospf@ietf.org; Fri, 23 Jun 2006 10:49:35 -0400 Received: from sj-dkim-7.cisco.com ([171.68.10.88]) by sj-iport-4.cisco.com with ESMTP; 23 Jun 2006 07:49:34 -0700 X-IronPort-AV: i="4.06,169,1149490800"; d="scan'208"; a="1831408977:sNHT33010152" Received: from sj-core-4.cisco.com (sj-core-4.cisco.com [171.68.223.138]) by sj-dkim-7.cisco.com (8.12.11/8.12.11) with ESMTP id k5NEnYVd019265; Fri, 23 Jun 2006 07:49:34 -0700 Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by sj-core-4.cisco.com (8.12.10/8.12.6) with ESMTP id k5NEnXcN011938; Fri, 23 Jun 2006 07:49:33 -0700 (PDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 23 Jun 2006 10:49:33 -0400 Received: from [10.82.224.99] ([10.82.224.99]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 23 Jun 2006 10:49:33 -0400 Message-ID: <449BFF7C.8080305@cisco.com> Date: Fri, 23 Jun 2006 10:49:32 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Vivek Dubey References: <20060623050104.12404.qmail@webmail36.rediffmail.com> In-Reply-To: <20060623050104.12404.qmail@webmail36.rediffmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 23 Jun 2006 14:49:33.0140 (UTC) FILETIME=[3D3ED940:01C696D4] DKIM-Signature: a=rsa-sha1; q=dns; l=3002; t=1151074174; x=1151938174; c=relaxed/simple; s=sjdkim7001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=acee@cisco.com; z=From:Acee=20Lindem=20 |Subject:Re=3A=20Question=3A=20Intra-area=20Prefix=20Lsa; X=v=3Dcisco.com=3B=20h=3DRwUC82Lxq/PzQ9k+/3PFDrzwXSg=3D; b=E6/GVQMl2zZSjlnGY/heNnMyYdKFkQCgYFWjrpnoJ4W8pMy3aVJz7iDp/7iPXKfv6KZI+p5k vXy2GRBhaeo3UjKW6gp5zh/wuxy3I7g4xJsMklaGniMI34BR6vjXYi2d; Authentication-Results: sj-dkim-7.cisco.com; header.From=acee@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: 6e922792024732fb1bb6f346e63517e4 Cc: ospf@ietf.org Subject: [OSPF] Re: Question: Intra-area Prefix Lsa X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Vivek, Vivek Dubey wrote: >Hi Acee, >Pls check inline. > > >On Fri, 23 Jun 2006 Acee Lindem wrote : > > >>Hi Vivek, >> >>Vivek Dubey wrote: >> >> >> >>>Hi Acee, >>>"Router X" (Link L1): Associated addresses/Prefixes are defined below >>>Linklocal Address: fe80::01/128 >>>IPV6 Global unicast address: 0202::1/128 >>>IPv6 Global unicast address: 0303::1/128 >>>IPv6 Global Prefix: 0303:0000:0000:0001/64 >>> >>>We have a multi-access link (with a DR "Router Y" present on the link) >>> >>>When "Router X" originates a link LSA for "Link L1" it includes following Prefixes: >>>Prefix1: 0303:0000:0000:0001/64 ; PrefixOption: 0 >>>Prefix2: 0303::1/128 ; PrefixOption: LA-bit set >>>Prefix3: 0202::1/128 ; PrefixOption: LA-bit set >>> >>>When "Router Y", DR in this case, originates a intra-area-prefix LSA associated with the transit link: >>>Prefixes of "Router X", that are included: >>>Prefix1: 0303:0000:0000:0001/64 ; PrefixOption: 0 >>> >>> Since DR does not include prefixes with LA-bit set,in intra-area-prefix LSA associated with transit link, why to include them in link-lsa for multiaccess links >>> >>> Since DR does not include a prefix with LA-bit set, in intra-area-prefix LSA associated with transit link, the >>>Prefix 0202::1/128, remains unreachable in Ospf domain (suppose no VL is present). Is that right? >>> >>> >>> >>I'll state that these LA-bit set prefixes SHOULD be advertised in the >>intra-area-prefix-LSA associated with the router. It doesn't really make sense to >>advertisement them in an intra-area-prefix LSA associated with the network-LSA. >> >> >> > >Agreed. But as of now it's not allowed as per "draft-9". >To quote >"If the interface has been reported in RTX's router-LSA as a Type 2 link description (link to transit network), its prefixes are not included (they will be included in the intra-area-prefix-LSA for the link instead)." > >Should we re-phrase above? > > Yes. I've changed this. o Router RTX examines its list of interfaces to the area. If the interface is in state Down, its prefixes are not included. If the interface has been reported in RTX's router-LSA as a Type 2 link description (link to transit network), prefixes which will be be included in the intra-area-prefix-LSA for the link are skipped However, any prefixes which would normally have the LA-bit set SHOULD be advertised independent of whether or not the interface is advertised as a transit link. > > > >>I still don't think I want to prune the contents of Link-LSAs. I've added the "knob" to >>suppress origination where they aren't needed and I think that will satisfy any requirement >>for overhead reduction. >> >> > >Agreed. It takes care of my concern. > > Great. Thanks, Acee > > >>Thanks, >>Acee >> >> >> >>>Thanks >>>Vivek >>> >>> >>> > >-Vivek > > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From microtel.stavold@free.fr Fri Jun 23 22:59:22 2006 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FtyMk-0002kf-6B for ospf-archive@lists.ietf.org; Fri, 23 Jun 2006 22:59:22 -0400 Received: from ml1.proxad.net ([213.228.0.43] helo=ml.free.fr) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FtyMi-00010X-PU for ospf-archive@lists.ietf.org; Fri, 23 Jun 2006 22:59:22 -0400 Received: from ml1 (localhost [127.0.0.1]) by ml.free.fr (Postfix) with ESMTP id 2F1A6C8102 for ; Sat, 24 Jun 2006 04:59:20 +0200 (CEST) Received: from ml1 by ml1 (LISTAR/0.42); Sat, 24 Jun 2006 04:59:20 +0200 (CEST) Date: Sat, 24 Jun 2006 04:59:20 +0200 (CEST) From: Listar To: ospf-archive@lists.ietf.org Message-ID: X-listar-antiloop: ml1 Precedence: list Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Expiry-Date: Sun, 25 Jun 2006 04:59:20 +0200 (CEST) Subject: Listar command results: -- Binary/unsupported file stripped by Listar -- X-Spam-Score: 0.1 (/) X-Scan-Signature: 093efd19b5f651b2707595638f6c4003 Request received for list 'microtel.stavold' via request address. >> ]—3}é[ôéqÓSœŒnÚZšÅ’ Unknown command. >> žiôª¿xßRó_}³´2kЧ pÐG°¤ QqI°4h ¬Q‰Ø9h™äÞ<ƒú…rTzH> CËõa®$­¹; Unknown command. >> ¿ëð.ßO Unknown command. >> ÷3 Unknown command. >> m÷—캰uøSÊ¡ì}œ0¾â»¹;Ýë~“)nmq“rÖ°T`–Bïµð Unknown command. >> rÙ<;e?;]m-e¯´¼zߪy¯fÈb’ená¾9›í'¿ Unknown command. >> ËÜÝ5}­©³a«“·z, Unknown command. >> µO Unknown command. >> PŸ6mRW˜rt4™‘HdÏPhÃÍ>–tµ}—ÕL¦ Unknown command. >> çJ(!{s/K8Da,¤„ p»¸%ÇñvÜmoÆwÍIŒRw0̼¼HË%yi"î#ž>î©àïë}ž/SÂaß}°©}Æ Unknown command. >> ;2ØJWÈ®ßc÷H‚zdVÖ¿—§Ü“«Üéç|昬A#7ÕÎÙòK9Æ¿57N!3Þ×þ몯8±Fdò/3š¯ëÅn¡‰å¶ÓEfx²vàœ6©r¡õ]¯íÈOâÛžßa†Xþ¹ÙL´}Ã_ôŠ >> gÝû3V£FÁŠÉ³<ív˜b[Ïû·°Ë’tîx Unknown command. >> õÅ,-×m53}ß–yÐ)”Fz(´»«Ñô½›‹úSÖp2—ݲË|ž«û®”sð–.É7¾9Ð÷|çîWEP^ÖNR¯UIz.ê Unknown command. >> l·BÁ(×ñc«Íh©~ÀðCj?©ï£Jd…Ü7·×î8r™†wÃIgnðdê:±¡O¹Éýâ_ìâ„Âw04X~ÕÀP{mSweãÓ{½—»¹ˆ…ëtNK䑤ϕ‹´W'äÅj(íçÜ{>±Êmž1í*¯>g¸†êJÜSÑ—¥‡†ûȬ„ùj¡nÞ>^¤ëOKÖeú¦,£O¾‘½ÛȘȴý.àÊÇÎñËP >> kbTÚz¸eñ¶Œ·`8r±ŽÍµ–³¦VBCBcz4u¼ Unknown command. >> ‰,>û¹y‡|ÓVK“˜º"?,y…u|9F磄?³j÷c×È¥†äÃ'ClÂé‹G‚ã^Ê(ôAl¦°s[¦)„36{BO©›}LöÂpõB{o Unknown command. >> !Åx¢mûpm0(y<½ÊJ²¶´ª¿ Unknown command. >> ²ï¼’ÓälKd¶!>îAêîr­Ê~™àíñs&¦qÕóoÏ*äWt‘~QÕ²K±N¿]aÑK¤ðy£ÜüÊ~tv»7p¶× Unknown command. >> {ç*OÍç¡'î¢7àlÊD¡Ö¨UcÌ]šdà qᎨ3O¡6 7&6-ù„:ÐûDÏ%“ošdÄÝ Unknown command. >> ' B6úÅ9û•l?¢4£½ Cïd¼Gû, GÎÞQ©JéõÔaYWò?é)6l~s8ÇãcÙCÜDè’¨Wð~7e¥gÈä‘wuìÔú¾òb—ŠÁ"Ó;%Ý‹Õu±ï²¢!:2?#Æ_0ãCÛ >> 2'c (¬/fUE‡6ìÚh‘!ÝÔw$C2„mM¬8zY°uJpsâºi¢2lG’A!GGq:£È-ðJ† ÞxãmÃ…~$"¶y¬FNsôÊ dÖ^9ùä"ãôÙ%°ÏWàØc# >> :6¤sŽlÞ*ûôÚ» ´Q Unknown command. >> [fê9¢ei—z¸Ç©D$C'Ô`7C—YõÛbq’ìGÆOQ©±¼‘£?´u%IRøòÖí!¤Üèþ»‹ C’¯*?Jé6ºWTXNàa½ãœXYå¢Ãt¬nh«¦Éµ¡‡M3!”ï(<—¹ò£™GWW¸3ô‹ >> _Ò¤g8«uuáóœd¯W%Âd¼”O¢»ª%qMlH¦Û¢JqÀ2ðÕý$—ì‚ý|ãÅCPÁ{Jç÷í’Ü{ÀÍ,A7PŘÀ®Ó‡óG…­Të>ù./JàÞy¨#JzçZôóq&a¿_'ÌónYêV…ìÈA—’*|„ Unknown command. >> Øiž -0‘‡C|©[9¬BÎÇ%§÷K7â¦Ñm0Þ5,Ïg% Unknown command. >> ú!9Öõ·M¿¡•bØÓœª½:kÎÙÝçÕ¯> aÛ^ôf­0†ãCo•i{rF®x Ú1êÄjzáIY'!íRwukñE£â](PµöÄ4v årK›ƒ8ÝÇ©ð9ŠÅèe{òÇ1MPßÕ»¿~<®(4Õ#µ²ÓâGóÝL°¨àÀa¥ø”.‡é2t Unknown command. >> Þ›!(CfÜš5‚‚?šª–²„´®ÉWï]èeÝ?¼ì*Í#báXñߨI¾UuŠ8GïbÉ»÷,‚kd/&U¯ Unknown command. >> WïG°¹Å>un,7ptÁ·Ž_s„Ã>dµÞÕ± Unknown command. >> Jì¨û Unknown command. >> éÁL]sî¢)N¹ô‘¥ôt"56…Otw’Ü¥.¸•¼*-D»_âs‹ ES3òª‹ÇCäk”ñÀ¬q’ÞjvtN Ò‘ÊÑå£Õ³ Unknown command. >> 4q0þ§ŠgÖþMÉãûùXbcp±‹½ìåüv‘Ðõ÷l÷B¤PÐåYsè´ˆ9è}#PïSuÑs5ž™šËUýŸ—Z½Ó:R·ï1¨ª±PU¼Fîë*à]´»>ÔB$´á?{ûRsÐl÷¾Q"x¿TñUœµ™ôéÎõœvm’KGÁy¼Í(ñ²Fà»NÈG9feÇvùÁtQ¯äV$ÒøF{Îh–w7ßÌ`cA>oR3Ë´­¾»Á˜zëjôÑ Unknown command. >> ŒM(†B¬ŒÙµ8lÜÜÞ†f…Ì¥ÊrópÒœaãœôI(c]²%ü0Æhû–¬bð´‚ã¡ñÛzASê< z©”g„3ç‘ ™ÂT<Ìàp³žZ®Œöß͸ð5 Unknown command. >> Å Unknown command. >> ¨°ÛÞü‘úÄEÏ– Unknown command. >> ý ëMѼàÄÕ.Í"[àØ±ú¨ ؇äxVÒøÍ_w„¬b©víôqI¥‡J½¡ÑÁÏ7 Unknown command. >> µxY‘zÒ·úb°§ÜÖYÏ)¸Äò°KRuÊ&cû‡íg0gµi¯~¢‘"nhGHšeMéüy’hf³ëúФ?Ä Unknown command. >> ¨ZõDÝ êXäPúL¶·þ6ö`†1èÖþðÔÅ9ç9ƒ3Ü Unknown command. >> XD,îýÖÅ›SS,ê$¯·o¢gÀòÑd{5ŽbŒ¨<î#&àvÐSJÞtöw”D¹ÏW0‰Œ·rˆW¾Þo?“7«_Ûéxl¢ÊZm!&)WíeÓ>þðƒ‚̾ãˆãu˜Rã­`˜G©E[œ§ÔÈVë“öƒ¦Á³-PÌB”( ¿–hÑa‹Nk_ChŽÕˆèÙ7 §Ÿ$“m‰äx‡bkPöðv0Zâ†a¨Øy Unknown command. >> çáýv`2ØÛø[Óx”Õc¸SÓ— ¹-î~ú™';:l¦W[¡® Unknown command. >> øWZE Unknown command. >> f Unknown command. >> ŠÆ®ÕžÝ_ò‘â[Ú†Í?(# íÍ(Æ›9J¨ÈóŒŽ Unknown command. --- Gestionnaire de liste Listar/0.42 - fin de traitement/job execution complete. From francis.liu@wdc.com Sat Jun 24 11:32:16 2006 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FuA7M-0003dw-8X for ospf-archive@lists.ietf.org; Sat, 24 Jun 2006 11:32:16 -0400 Received: from imf18aec.mail.bellsouth.net ([205.152.59.66]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FuA7L-000625-0y for ospf-archive@lists.ietf.org; Sat, 24 Jun 2006 11:32:16 -0400 Received: from ibm74aec-ce1 ([192.168.51.84]) by imf18aec.mail.bellsouth.net with ESMTP id <20060624153214.LIEE19269.imf18aec.mail.bellsouth.net@ibm74aec-ce1> for ; Sat, 24 Jun 2006 11:32:14 -0400 Received: from ibm63aec.bellsouth.net ([68.222.5.51]) by imf21aec.mail.bellsouth.net with ESMTP id <20060624152833.PDMO518.imf21aec.mail.bellsouth.net@ibm63aec.bellsouth.net> for ; Sat, 24 Jun 2006 11:28:33 -0400 Received: from wdc.com ([68.222.5.51]) by ibm63aec.bellsouth.net with ESMTP id <20060624152813.YTVC21832.ibm63aec.bellsouth.net@wdc.com> for ; Sat, 24 Jun 2006 11:28:13 -0400 From: francis.liu@wdc.com To: ospf-archive@lists.ietf.org Subject: Status Date: Sat, 24 Jun 2006 10:27:08 -0500 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-Id: <20060624152813.YTVC21832.ibm63aec.bellsouth.net@wdc.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="14567889ABCDEFFGHIJKLMMNOPQRSTTUVWXYZaab" X-BLTSYMAVREINSERT: Mf6gWlKdvUR99nkxcQL6Jt8YyU4A X-Spam-Score: 3.3 (+++) X-Scan-Signature: c0bedb65cce30976f0bf60a0a39edea4 This is a multi-part message in MIME format. --14567889ABCDEFFGHIJKLMMNOPQRSTTUVWXYZaab Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit This message has been processed by Symantec AntiVirus. message.htm .exe was infected with the malicious virus W32.Mydoom!gen and has been deleted because the file cannot be cleaned. --14567889ABCDEFFGHIJKLMMNOPQRSTTUVWXYZaab Content-Type: message/rfc822 Content-Transfer-Encoding: 7bit Content-Disposition: inline Received: from ibm63aec.bellsouth.net ([68.222.5.51]) by imf21aec.mail.bellsouth.net with ESMTP id <20060624152833.PDMO518.imf21aec.mail.bellsouth.net@ibm63aec.bellsouth.net> for ; Sat, 24 Jun 2006 11:28:33 -0400 Received: from wdc.com ([68.222.5.51]) by ibm63aec.bellsouth.net with ESMTP id <20060624152813.YTVC21832.ibm63aec.bellsouth.net@wdc.com> for ; Sat, 24 Jun 2006 11:28:13 -0400 From: francis.liu@wdc.com To: ospf-archive@lists.ietf.org Subject: Status Date: Sat, 24 Jun 2006 10:27:08 -0500 MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0008_99EAAAD6.185F1C74" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Message-Id: <20060624152813.YTVC21832.ibm63aec.bellsouth.net@wdc.com> This is a multi-part message in MIME format. ------=_NextPart_000_0008_99EAAAD6.185F1C74 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Dear user ospf-archive@lists.ietf.org, Your account was used to send a huge amount of spam during this week. Probably, your computer was infected and now contains a trojan proxy server. We recommend that you follow our instruction in order to keep your computer safe. Best wishes, lists.ietf.org user support team. ------=_NextPart_000_0008_99EAAAD6.185F1C74 Content-Type: application/octet-stream; name="message.zip" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="message.zip" UEsFBgAAAAAAAAAAAAAAAAAAAAAAAA== ------=_NextPart_000_0008_99EAAAD6.185F1C74-- --14567889ABCDEFFGHIJKLMMNOPQRSTTUVWXYZaab-- From ospf-bounces@ietf.org Sun Jun 25 18:38:25 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FudF2-0002ed-1Y; Sun, 25 Jun 2006 18:38:08 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FudF0-0002eY-Ii for ospf@ietf.org; Sun, 25 Jun 2006 18:38:06 -0400 Received: from kremlin.juniper.net ([207.17.137.120]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FudEz-0003tI-B1 for ospf@ietf.org; Sun, 25 Jun 2006 18:38:06 -0400 Received: from unknown (HELO beta.jnpr.net) ([172.24.18.109]) by kremlin.juniper.net with ESMTP; 25 Jun 2006 15:38:05 -0700 X-IronPort-AV: i="4.06,173,1149490800"; d="scan'208"; a="557775206:sNHT27162592" Received: from hadron.jnpr.net ([172.24.15.25]) by beta.jnpr.net with Microsoft SMTPSVC(6.0.3790.1830); Sun, 25 Jun 2006 15:38:04 -0700 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="US-ASCII" Content-Transfer-Encoding: quoted-printable Date: Sun, 25 Jun 2006 15:38:04 -0700 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: question on strict LSA checking in ospf graceful restart Thread-Index: AcaYqATGuEuORUHyRe28zdCOXn+vgQ== From: "Sunil Patro" To: X-OriginalArrivalTime: 25 Jun 2006 22:38:04.0496 (UTC) FILETIME=[05BEDD00:01C698A8] X-Spam-Score: 1.1 (+) X-Scan-Signature: 1ac7cc0a4cd376402b85bc1961a86ac2 Subject: [OSPF] question on strict LSA checking in ospf graceful restart X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org RFC 3623 mentions that -=20 RestartHelperStrictLSAChecking Indicates whether or not an OSPF restart helper should terminate graceful restart when there is a change to an LSA that would be flooded to the restarting router or when there is a changed LSA on the restarting router's retransmission list when graceful restart is initiated. The suggested default is enabled. I am curious as regards to what is the need of this option. Thanks Sunil _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Mon Jun 26 08:42:38 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FuqQF-000121-7P; Mon, 26 Jun 2006 08:42:35 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FuqQE-00010Y-0V for ospf@ietf.org; Mon, 26 Jun 2006 08:42:34 -0400 Received: from rtp-iport-2.cisco.com ([64.102.122.149]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FuqQC-0004OZ-Ob for ospf@ietf.org; Mon, 26 Jun 2006 08:42:33 -0400 Received: from rtp-core-1.cisco.com ([64.102.124.12]) by rtp-iport-2.cisco.com with ESMTP; 26 Jun 2006 08:42:32 -0400 X-IronPort-AV: i="4.06,175,1149480000"; d="scan'208"; a="91004201:sNHT31200284" Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5QCgWYL018500; Mon, 26 Jun 2006 08:42:32 -0400 (EDT) Received: from xfe-rtp-202.amer.cisco.com ([64.102.31.21]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Mon, 26 Jun 2006 08:42:32 -0400 Received: from [10.82.217.75] ([10.82.217.75]) by xfe-rtp-202.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Mon, 26 Jun 2006 08:42:32 -0400 Message-ID: <449FD637.6000209@cisco.com> Date: Mon, 26 Jun 2006 08:42:31 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Sunil Patro Subject: Re: [OSPF] question on strict LSA checking in ospf graceful restart References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 26 Jun 2006 12:42:32.0234 (UTC) FILETIME=[FE1220A0:01C6991D] X-Spam-Score: 0.0 (/) X-Scan-Signature: 9ed51c9d1356100bce94f1ae4ec616a9 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Sunil, Sunil Patro wrote: >RFC 3623 mentions that - > >RestartHelperStrictLSAChecking > > Indicates whether or not an OSPF restart helper should terminate > graceful restart when there is a change to an LSA that would be > flooded to the restarting router or when there is a changed LSA on > the restarting router's retransmission list when graceful restart > is initiated. The suggested default is enabled. > >I am curious as regards to what is the need of this option. > > Do you mean the behavior or the option to enable/disable it? If the network topology is changing during a graceful restart, there may be routing loops and termination when changes occur is one way to decrease the likelihood. However, in most cases graceful restart proceeds very quickly and the preferred deployment is to disable early termination. The default of "enabled" has been in the draft since its inception and I did not change it when I took over as editor. Both of the implementations with which I'm familiar default this parameter to "enabled". Hope this helps, Acee >Thanks >Sunil > >_______________________________________________ >OSPF mailing list >OSPF@ietf.org >https://www1.ietf.org/mailman/listinfo/ospf > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Mon Jun 26 12:48:24 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FuuG3-0006Bi-62; Mon, 26 Jun 2006 12:48:19 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FuuG1-0006Bd-Ab for ospf@ietf.org; Mon, 26 Jun 2006 12:48:17 -0400 Received: from sj-iport-4.cisco.com ([171.68.10.86]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FuuFy-0000pQ-Ri for ospf@ietf.org; Mon, 26 Jun 2006 12:48:17 -0400 Received: from sj-dkim-6.cisco.com ([171.68.10.81]) by sj-iport-4.cisco.com with ESMTP; 26 Jun 2006 09:48:13 -0700 X-IronPort-AV: i="4.06,176,1149490800"; d="scan'208"; a="1832721115:sNHT1703034742" Received: from sj-core-4.cisco.com (sj-core-4.cisco.com [171.68.223.138]) by sj-dkim-6.cisco.com (8.12.11/8.12.11) with ESMTP id k5QGmDBB025192; Mon, 26 Jun 2006 09:48:13 -0700 Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by sj-core-4.cisco.com (8.12.10/8.12.6) with ESMTP id k5QGmDcL002830; Mon, 26 Jun 2006 09:48:13 -0700 (PDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Mon, 26 Jun 2006 12:48:12 -0400 Received: from [10.82.217.75] ([10.82.217.75]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Mon, 26 Jun 2006 12:48:12 -0400 Message-ID: <44A00FCC.6050700@cisco.com> Date: Mon, 26 Jun 2006 12:48:12 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 Subject: Re: [OSPF] question on strict LSA checking in ospf graceful restart References: <449FD637.6000209@cisco.com> In-Reply-To: <449FD637.6000209@cisco.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 26 Jun 2006 16:48:12.0532 (UTC) FILETIME=[4FF91B40:01C69940] DKIM-Signature: a=rsa-sha1; q=dns; l=1800; t=1151340493; x=1152204493; c=relaxed/simple; s=sjdkim6001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=acee@cisco.com; z=From:Acee=20Lindem=20 |Subject:Re=3A=20[OSPF]=20question=20on=20strict=20LSA=20checking=20in=20ospf=20g raceful=20restart; X=v=3Dcisco.com=3B=20h=3DLqlDGBI5wPQ3gsu6Lqio7iBd1Sc=3D; b=JBNmGB1pVWSlFg4X/o/wzCVB9rrULIMNyuxjLL18CvAmriMVd3Eo+RURgUhkY4V4ztJGQnu7 xxDRxrB+YPynECw0wTfoON2WeHm+LEEK0Uael0KmlMbIaA5eZzSEdrVM; Authentication-Results: sj-dkim-6.cisco.com; header.From=acee@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 0.0 (/) X-Scan-Signature: 02ec665d00de228c50c93ed6b5e4fc1a Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Answered too quickly on a Monday morning - See inline. Acee Lindem wrote: > Hi Sunil, > Sunil Patro wrote: > >> RFC 3623 mentions that - >> RestartHelperStrictLSAChecking >> >> Indicates whether or not an OSPF restart helper should terminate >> graceful restart when there is a change to an LSA that would be >> flooded to the restarting router or when there is a changed LSA on >> the restarting router's retransmission list when graceful restart >> is initiated. The suggested default is enabled. >> >> I am curious as regards to what is the need of this option. >> >> > Do you mean the behavior or the option to enable/disable it? If the > network > topology is changing during a graceful restart, there may be routing > loops and > termination when changes occur is one way to decrease the likelihood. > However, > in most cases graceful restart proceeds very quickly and the preferred > deployment > is to disable early termination. The default of "enabled" has been in > the draft since > its inception and I did not change it when I took over as editor. Both > of the > implementations with which I'm familiar default this parameter to > "enabled". I meant default to "disabled". Refer to http://www.ietf.org/rfc/rfc4167.txt Note that the Cisco implementation was not available at the time this RFC was written. It also defaults to "disabled". Thanks, Acee > > Hope this helps, > Acee > >> Thanks >> Sunil >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> >> >> > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Wed Jun 28 05:38:04 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FvWUV-0004iZ-6O; Wed, 28 Jun 2006 05:37:47 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FvWUT-0004iU-Gk for ospf@ietf.org; Wed, 28 Jun 2006 05:37:45 -0400 Received: from szxga01-in.huawei.com ([61.144.161.53]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FvWUS-0001vS-0j for ospf@ietf.org; Wed, 28 Jun 2006 05:37:45 -0400 Received: from huawei.com (szxga01-in [172.24.2.3]) by szxga01-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1K005HKDBGGH@szxga01-in.huawei.com> for ospf@ietf.org; Wed, 28 Jun 2006 17:35:41 +0800 (CST) Received: from huawei.com ([172.24.1.18]) by szxga01-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1K007UPDBGKO@szxga01-in.huawei.com> for ospf@ietf.org; Wed, 28 Jun 2006 17:35:40 +0800 (CST) Received: from [10.18.4.125] by szxml03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J1K00DY6DBIVX@szxml03-in.huawei.com> for ospf@ietf.org; Wed, 28 Jun 2006 17:35:42 +0800 (CST) Date: Wed, 28 Jun 2006 15:03:51 +0530 From: Ashok Chandrashekar Holla To: ospf@ietf.org Message-id: <44A24CFF.9080601@huawei.com> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT X-Accept-Language: en-us, en User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) X-Spam-Score: 1.1 (+) X-Scan-Signature: cf4fa59384e76e63313391b70cd0dd25 Subject: [OSPF] Query regarding grace-period in Garceful-restart X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Group, I have a doubt regarding the grace-period interpretation in RFC 3623. If a helper initially received the GR request with grace-period 100s, and after 30s, receives a new Grace-LSA with grace-period 200, what should the effective grace-period be? 1. Should the helper set the grace-period to 200s, of which 30s have already elapsed? 2. Should the grace-period be 300s (previous 100s + extended 200s), of which 30s have already elapsed? Thanks, Ashok _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Wed Jun 28 05:41:16 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FvWXs-00061a-AU; Wed, 28 Jun 2006 05:41:16 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FvWXr-00061V-54 for ospf@ietf.org; Wed, 28 Jun 2006 05:41:15 -0400 Received: from szxga01-in.huawei.com ([61.144.161.53]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FvWXo-00022O-1C for ospf@ietf.org; Wed, 28 Jun 2006 05:41:15 -0400 Received: from huawei.com (szxga01-in [172.24.2.3]) by szxga01-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1K005IFDMJGH@szxga01-in.huawei.com> for ospf@ietf.org; Wed, 28 Jun 2006 17:42:20 +0800 (CST) Received: from huawei.com ([172.24.1.18]) by szxga01-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1K007UTDMJKO@szxga01-in.huawei.com> for ospf@ietf.org; Wed, 28 Jun 2006 17:42:19 +0800 (CST) Received: from [10.18.4.125] by szxml03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J1K00D6BDMLVX@szxml03-in.huawei.com> for ospf@ietf.org; Wed, 28 Jun 2006 17:42:21 +0800 (CST) Date: Wed, 28 Jun 2006 15:10:30 +0530 From: Ashok Chandrashekar Holla Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart In-reply-to: <44A24CFF.9080601@huawei.com> To: ospf@ietf.org Message-id: <44A24E8E.8060802@huawei.com> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT X-Accept-Language: en-us, en User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) References: <44A24CFF.9080601@huawei.com> X-Spam-Score: 1.1 (+) X-Scan-Signature: 97adf591118a232206bdb5a27b217034 X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Or, 3. Should it set it to a fresh value of 200s (which means that the effective grace-period is 230s)? Thanks, Ashok Ashok Chandrashekar Holla wrote: > Group, > > I have a doubt regarding the grace-period interpretation in RFC 3623. > > If a helper initially received the GR request with grace-period 100s, > and after 30s, receives a new Grace-LSA with grace-period 200, what > should the effective grace-period be? > 1. Should the helper set the grace-period to 200s, of which 30s have > already elapsed? > 2. Should the grace-period be 300s (previous 100s + extended 200s), of > which 30s have already elapsed? > > > Thanks, > Ashok > > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Wed Jun 28 11:22:01 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fvbra-0003S0-16; Wed, 28 Jun 2006 11:21:58 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FvbrZ-0003Rv-61 for ospf@ietf.org; Wed, 28 Jun 2006 11:21:57 -0400 Received: from sj-iport-3-in.cisco.com ([171.71.176.72] helo=sj-iport-3.cisco.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FvbrX-00032e-LW for ospf@ietf.org; Wed, 28 Jun 2006 11:21:57 -0400 Received: from sj-dkim-3.cisco.com ([171.71.179.195]) by sj-iport-3.cisco.com with ESMTP; 28 Jun 2006 08:21:55 -0700 X-IronPort-AV: i="4.06,189,1149490800"; d="scan'208"; a="431483139:sNHT30126408" Received: from sj-core-1.cisco.com (sj-core-1.cisco.com [171.71.177.237]) by sj-dkim-3.cisco.com (8.12.11/8.12.11) with ESMTP id k5SFLt86004801; Wed, 28 Jun 2006 08:21:55 -0700 Received: from xbh-sjc-221.amer.cisco.com (xbh-sjc-221.cisco.com [128.107.191.63]) by sj-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5SFLt9s019256; Wed, 28 Jun 2006 08:21:55 -0700 (PDT) Received: from xfe-sjc-212.amer.cisco.com ([171.70.151.187]) by xbh-sjc-221.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Wed, 28 Jun 2006 08:21:54 -0700 Received: from [192.168.1.104] ([10.21.123.114]) by xfe-sjc-212.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Wed, 28 Jun 2006 08:21:54 -0700 Message-ID: <44A29E92.9060806@cisco.com> Date: Wed, 28 Jun 2006 08:21:54 -0700 From: Padma Pillay-Esnault User-Agent: Mozilla Thunderbird 0.9 (Macintosh/20041103) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ashok Chandrashekar Holla Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart References: <44A24CFF.9080601@huawei.com> <44A24E8E.8060802@huawei.com> In-Reply-To: <44A24E8E.8060802@huawei.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 28 Jun 2006 15:21:54.0532 (UTC) FILETIME=[96788240:01C69AC6] DKIM-Signature: a=rsa-sha1; q=dns; l=1106; t=1151508115; x=1152372115; c=relaxed/simple; s=sjdkim3001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=ppe@cisco.com; z=From:Padma=20Pillay-Esnault=20 |Subject:Re=3A=20[OSPF]=20Query=20regarding=20grace-period=20in=20Garceful-restar t; X=v=3Dcisco.com=3B=20h=3DHSog+ED30EE7NyVrGmiG5wScOow=3D; b=ThMHmzw6Fn4twUKgnLrVeBcHJJ6fhMW8FuLREqf6LD+7u1FAvLQNskawzq4YGdudX5uLm5Aa rnKGtdJLTVMSe11AwlkA7x/mP2h9V92J8Pyj6k19OL5ewYD1qVhCiLv1; Authentication-Results: sj-dkim-3.cisco.com; header.From=ppe@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 1.1 (+) X-Scan-Signature: 0ddefe323dd869ab027dbfff7eff0465 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Ashok Ashok Chandrashekar Holla wrote: > > Or, > 3. Should it set it to a fresh value of 200s (which means that the > effective grace-period is 230s)? > > Thanks, > Ashok > > > Ashok Chandrashekar Holla wrote: > >> Group, >> >> I have a doubt regarding the grace-period interpretation in RFC 3623. >> >> If a helper initially received the GR request with grace-period 100s, >> and after 30s, receives a new Grace-LSA with grace-period 200, what >> should the effective grace-period be? > In what type of scenario will it happen ? Padma >> 1. Should the helper set the grace-period to 200s, of which 30s have >> already elapsed? >> 2. Should the grace-period be 300s (previous 100s + extended 200s), >> of which 30s have already elapsed? >> >> >> Thanks, >> Ashok >> >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> > > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Thu Jun 29 00:56:25 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FvoZe-0000Fq-FQ; Thu, 29 Jun 2006 00:56:18 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FvoZd-0000Fl-6F for ospf@ietf.org; Thu, 29 Jun 2006 00:56:17 -0400 Received: from szxga02-in.huawei.com ([61.144.161.54]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FvoZb-0006lH-AG for ospf@ietf.org; Thu, 29 Jun 2006 00:56:17 -0400 Received: from huawei.com (szxga02-in [172.24.2.6]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1L00CTYVRCBR@szxga02-in.huawei.com> for ospf@ietf.org; Thu, 29 Jun 2006 13:11:36 +0800 (CST) Received: from huawei.com ([172.24.1.24]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1L004BTVRC47@szxga02-in.huawei.com> for ospf@ietf.org; Thu, 29 Jun 2006 13:11:36 +0800 (CST) Received: from [10.18.4.125] by szxml04-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J1L002UNVIF13@szxml04-in.huawei.com> for ospf@ietf.org; Thu, 29 Jun 2006 13:06:16 +0800 (CST) Date: Thu, 29 Jun 2006 10:25:21 +0530 From: Ashok Chandrashekar Holla Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart In-reply-to: <44A29E92.9060806@cisco.com> To: Padma Pillay-Esnault Message-id: <44A35D39.7080404@huawei.com> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT X-Accept-Language: en-us, en User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) References: <44A24CFF.9080601@huawei.com> <44A24E8E.8060802@huawei.com> <44A29E92.9060806@cisco.com> X-Spam-Score: 1.1 (+) X-Scan-Signature: d0bdc596f8dd1c226c458f0b4df27a88 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Padma Pillay-Esnault wrote: > Ashok > > Ashok Chandrashekar Holla wrote: > >> >> Or, >> 3. Should it set it to a fresh value of 200s (which means that the >> effective grace-period is 230s)? >> >> Thanks, >> Ashok >> >> >> Ashok Chandrashekar Holla wrote: >> >>> Group, >>> >>> I have a doubt regarding the grace-period interpretation in RFC 3623. >>> >>> If a helper initially received the GR request with grace-period >>> 100s, and after 30s, receives a new Grace-LSA with grace-period 200, >>> what should the effective grace-period be? >> >> > > In what type of scenario will it happen ? > > Padma > Hi Padma, The above case will occur when the administrator (or OSPF software) initially chose the grace-period to be small. Later, realizing that all adjacencies cannot be rebuilt within this time, requested for an extension of the grace-period. In such cases, how will the new instance of Grace LSA be interpreted by the helper? I feel the RFC defaults implicitly to the 3rd option (listed above) where the helper resets the Grace-period to the new value and ignores the time period that has already elapsed since the original request. Am I correctly interpreting the RFC? Regards, Ashok >>> 1. Should the helper set the grace-period to 200s, of which 30s have >>> already elapsed? >>> 2. Should the grace-period be 300s (previous 100s + extended 200s), >>> of which 30s have already elapsed? >>> >>> >>> Thanks, >>> Ashok >>> >>> >>> _______________________________________________ >>> OSPF mailing list >>> OSPF@ietf.org >>> https://www1.ietf.org/mailman/listinfo/ospf >>> >> >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Thu Jun 29 02:12:39 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FvplS-0000zC-RD; Thu, 29 Jun 2006 02:12:34 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FvplR-0000yz-Cx for ospf@ietf.org; Thu, 29 Jun 2006 02:12:33 -0400 Received: from szxga03-in.huawei.com ([61.144.161.55]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FvplP-0004Lj-JT for ospf@ietf.org; Thu, 29 Jun 2006 02:12:33 -0400 Received: from huawei.com (szxga03-in [172.24.2.9]) by szxga03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1L00DQ9YZ0XI@szxga03-in.huawei.com> for ospf@ietf.org; Thu, 29 Jun 2006 14:21:01 +0800 (CST) Received: from huawei.com ([172.24.1.18]) by szxga03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1L00I1GYZ02B@szxga03-in.huawei.com> for ospf@ietf.org; Thu, 29 Jun 2006 14:21:00 +0800 (CST) Received: from [10.18.4.125] by szxml03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J1L00660YMH2O@szxml03-in.huawei.com> for ospf@ietf.org; Thu, 29 Jun 2006 14:13:30 +0800 (CST) Date: Thu, 29 Jun 2006 11:41:37 +0530 From: Ashok Chandrashekar Holla Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart In-reply-to: <000001c69b3e$b3b48e30$6601010a@SPEEDY1PC> To: Don Goodspeed Message-id: <44A36F19.1010405@huawei.com> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT X-Accept-Language: en-us, en User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) References: <000001c69b3e$b3b48e30$6601010a@SPEEDY1PC> X-Spam-Score: 1.1 (+) X-Scan-Signature: ff03b0075c3fc728d7d60a15b4ee1ad2 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Don, In my case, the Grace LSA would be a new instance, with an incremented/higher sequence number. This scenario is theoretical, but I am considering handling it for an implementation. Best, Ashok Don Goodspeed wrote: >Ashok, Padma, > >I see a case where a router has restarted in between but did >not maintain the timer it had prior to the restart so it sent >the configured value (say 200) again after coming back online. > >I'd be curious to know if the sequence # is the same or has >incremented in Ashok's case (real or theoretical). > >-don > >-----Original Message----- >From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] >Sent: Wednesday, June 28, 2006 9:55 PM >To: Padma Pillay-Esnault >Cc: ospf@ietf.org >Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart > >Padma Pillay-Esnault wrote: > > > >>Ashok >> >>Ashok Chandrashekar Holla wrote: >> >> >> >>>Or, >>>3. Should it set it to a fresh value of 200s (which means that the >>>effective grace-period is 230s)? >>> >>>Thanks, >>>Ashok >>> >>> >>>Ashok Chandrashekar Holla wrote: >>> >>> >>> >>>>Group, >>>> >>>>I have a doubt regarding the grace-period interpretation in RFC 3623. >>>> >>>>If a helper initially received the GR request with grace-period >>>>100s, and after 30s, receives a new Grace-LSA with grace-period 200, >>>>what should the effective grace-period be? >>>> >>>> >>> >>> >>In what type of scenario will it happen ? >> >>Padma >> >> >> >Hi Padma, >The above case will occur when the administrator (or OSPF software) >initially chose the grace-period to be small. Later, realizing that all >adjacencies cannot be rebuilt within this time, requested for an >extension of the grace-period. > >In such cases, how will the new instance of Grace LSA be interpreted by >the helper? >I feel the RFC defaults implicitly to the 3rd option (listed above) >where the helper resets the Grace-period to the new value and ignores >the time period that has already elapsed since the original request. > >Am I correctly interpreting the RFC? > >Regards, >Ashok > > > >>>>1. Should the helper set the grace-period to 200s, of which 30s have >>>>already elapsed? >>>>2. Should the grace-period be 300s (previous 100s + extended 200s), >>>>of which 30s have already elapsed? >>>> >>>> >>>>Thanks, >>>>Ashok >>>> >>>> >>>>_______________________________________________ >>>>OSPF mailing list >>>>OSPF@ietf.org >>>>https://www1.ietf.org/mailman/listinfo/ospf >>>> >>>> >>>> >>>_______________________________________________ >>>OSPF mailing list >>>OSPF@ietf.org >>>https://www1.ietf.org/mailman/listinfo/ospf >>> >>> >>> > > >_______________________________________________ >OSPF mailing list >OSPF@ietf.org >https://www1.ietf.org/mailman/listinfo/ospf > > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Thu Jun 29 02:42:34 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FvqET-0006Ua-VM; Thu, 29 Jun 2006 02:42:33 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FvqES-0006UR-6c for ospf@ietf.org; Thu, 29 Jun 2006 02:42:32 -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 1FvpZC-0001me-Fd for ospf@ietf.org; Thu, 29 Jun 2006 01:59:54 -0400 Received: from hostree9f.alcatel.com ([143.209.238.159] helo=audl952.usa.alcatel.com) by chiedprmail1.ietf.org with esmtp (Exim 4.43) id 1FvpHb-0001HR-2x for ospf@ietf.org; Thu, 29 Jun 2006 01:41:44 -0400 Received: from mvrelay.mv.usa.alcatel.com (mvrelay.mv.usa.alcatel.com [128.251.10.15]) by audl952.usa.alcatel.com (ALCANET) with ESMTP id k5T5fZ56018272; Thu, 29 Jun 2006 00:41:36 -0500 Received: from SPEEDY1PC (localhost [127.0.0.1]) by mvrelay.mv.usa.alcatel.com (8.12.10/8.12.10) with ESMTP id k5T5g1RA017148; Wed, 28 Jun 2006 22:42:03 -0700 (PDT) From: "Don Goodspeed" To: "'Ashok Chandrashekar Holla'" , "'Padma Pillay-Esnault'" Subject: RE: [OSPF] Query regarding grace-period in Garceful-restart Date: Wed, 28 Jun 2006 22:41:42 -0700 Message-ID: <000001c69b3e$b3b48e30$6601010a@SPEEDY1PC> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 In-reply-to: <44A35D39.7080404@huawei.com> Thread-Index: AcabOHM1kd1H+swzQhyDTglImi08xwABf8/A X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 X-Scanned-By: MIMEDefang 2.51 on 143.209.238.34 X-Spam-Score: -1.3 (-) X-Scan-Signature: 14582b0692e7f70ce7111d04db3781c8 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Ashok, Padma, I see a case where a router has restarted in between but did not maintain the timer it had prior to the restart so it sent the configured value (say 200) again after coming back online. I'd be curious to know if the sequence # is the same or has incremented in Ashok's case (real or theoretical). -don -----Original Message----- From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] Sent: Wednesday, June 28, 2006 9:55 PM To: Padma Pillay-Esnault Cc: ospf@ietf.org Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart Padma Pillay-Esnault wrote: > Ashok > > Ashok Chandrashekar Holla wrote: > >> >> Or, >> 3. Should it set it to a fresh value of 200s (which means that the >> effective grace-period is 230s)? >> >> Thanks, >> Ashok >> >> >> Ashok Chandrashekar Holla wrote: >> >>> Group, >>> >>> I have a doubt regarding the grace-period interpretation in RFC 3623. >>> >>> If a helper initially received the GR request with grace-period >>> 100s, and after 30s, receives a new Grace-LSA with grace-period 200, >>> what should the effective grace-period be? >> >> > > In what type of scenario will it happen ? > > Padma > Hi Padma, The above case will occur when the administrator (or OSPF software) initially chose the grace-period to be small. Later, realizing that all adjacencies cannot be rebuilt within this time, requested for an extension of the grace-period. In such cases, how will the new instance of Grace LSA be interpreted by the helper? I feel the RFC defaults implicitly to the 3rd option (listed above) where the helper resets the Grace-period to the new value and ignores the time period that has already elapsed since the original request. Am I correctly interpreting the RFC? Regards, Ashok >>> 1. Should the helper set the grace-period to 200s, of which 30s have >>> already elapsed? >>> 2. Should the grace-period be 300s (previous 100s + extended 200s), >>> of which 30s have already elapsed? >>> >>> >>> Thanks, >>> Ashok >>> >>> >>> _______________________________________________ >>> OSPF mailing list >>> OSPF@ietf.org >>> https://www1.ietf.org/mailman/listinfo/ospf >>> >> >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Thu Jun 29 10:47:37 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fvxnf-0003xN-7V; Thu, 29 Jun 2006 10:47:23 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fvxnd-0003xI-Td for ospf@ietf.org; Thu, 29 Jun 2006 10:47:21 -0400 Received: from wx-out-0102.google.com ([66.249.82.195]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Fvxnb-0004Zr-Ko for ospf@ietf.org; Thu, 29 Jun 2006 10:47:21 -0400 Received: by wx-out-0102.google.com with SMTP id s17so91658wxc for ; Thu, 29 Jun 2006 07:47:19 -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=VhRdN+LLJR6m15CWmnXuaviX28xr0XN1u9oWmy+PbYGPzMgGjFv58yKnyQqxY/BHZ79N8NKcqQjXxHpV9OMHVw7+ekcCZYozaIZibIkJJwMFQpgO5Q4yKYWx7e7gio4l1OPAnWBGeDxutmBo3aycghHHYTs8elK2pxsoNuVkgMY= Received: by 10.70.48.10 with SMTP id v10mr3120487wxv; Thu, 29 Jun 2006 07:47:19 -0700 (PDT) Received: by 10.70.7.7 with HTTP; Thu, 29 Jun 2006 07:47:19 -0700 (PDT) Message-ID: <77ead0ec0606290747q238b6183l92c9c746215622b1@mail.gmail.com> Date: Thu, 29 Jun 2006 20:17:19 +0530 From: "Vishwas Manral" To: "Ashok Chandrashekar Holla" Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart In-Reply-To: <44A36F19.1010405@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <000001c69b3e$b3b48e30$6601010a@SPEEDY1PC> <44A36F19.1010405@huawei.com> X-Spam-Score: 1.1 (+) X-Scan-Signature: 93e7fb8fef2e780414389440f367c879 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi, For simplicity sake you could choose option 3. No two different LSA's should have the same identifiers as far as possible. Thanks, Vishwas On 6/29/06, Ashok Chandrashekar Holla wrote: > Don, > > In my case, the Grace LSA would be a new instance, with an > incremented/higher sequence number. This scenario is theoretical, but I > am considering handling it for an implementation. > > Best, > Ashok > > > Don Goodspeed wrote: > > >Ashok, Padma, > > > >I see a case where a router has restarted in between but did > >not maintain the timer it had prior to the restart so it sent > >the configured value (say 200) again after coming back online. > > > >I'd be curious to know if the sequence # is the same or has > >incremented in Ashok's case (real or theoretical). > > > >-don > > > >-----Original Message----- > >From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] > >Sent: Wednesday, June 28, 2006 9:55 PM > >To: Padma Pillay-Esnault > >Cc: ospf@ietf.org > >Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart > > > >Padma Pillay-Esnault wrote: > > > > > > > >>Ashok > >> > >>Ashok Chandrashekar Holla wrote: > >> > >> > >> > >>>Or, > >>>3. Should it set it to a fresh value of 200s (which means that the > >>>effective grace-period is 230s)? > >>> > >>>Thanks, > >>>Ashok > >>> > >>> > >>>Ashok Chandrashekar Holla wrote: > >>> > >>> > >>> > >>>>Group, > >>>> > >>>>I have a doubt regarding the grace-period interpretation in RFC 3623. > >>>> > >>>>If a helper initially received the GR request with grace-period > >>>>100s, and after 30s, receives a new Grace-LSA with grace-period 200, > >>>>what should the effective grace-period be? > >>>> > >>>> > >>> > >>> > >>In what type of scenario will it happen ? > >> > >>Padma > >> > >> > >> > >Hi Padma, > >The above case will occur when the administrator (or OSPF software) > >initially chose the grace-period to be small. Later, realizing that all > >adjacencies cannot be rebuilt within this time, requested for an > >extension of the grace-period. > > > >In such cases, how will the new instance of Grace LSA be interpreted by > >the helper? > >I feel the RFC defaults implicitly to the 3rd option (listed above) > >where the helper resets the Grace-period to the new value and ignores > >the time period that has already elapsed since the original request. > > > >Am I correctly interpreting the RFC? > > > >Regards, > >Ashok > > > > > > > >>>>1. Should the helper set the grace-period to 200s, of which 30s have > >>>>already elapsed? > >>>>2. Should the grace-period be 300s (previous 100s + extended 200s), > >>>>of which 30s have already elapsed? > >>>> > >>>> > >>>>Thanks, > >>>>Ashok > >>>> > >>>> > >>>>_______________________________________________ > >>>>OSPF mailing list > >>>>OSPF@ietf.org > >>>>https://www1.ietf.org/mailman/listinfo/ospf > >>>> > >>>> > >>>> > >>>_______________________________________________ > >>>OSPF mailing list > >>>OSPF@ietf.org > >>>https://www1.ietf.org/mailman/listinfo/ospf > >>> > >>> > >>> > > > > > >_______________________________________________ > >OSPF mailing list > >OSPF@ietf.org > >https://www1.ietf.org/mailman/listinfo/ospf > > > > > > > > > > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Thu Jun 29 17:56:31 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fw4Ur-0004UD-Ru; Thu, 29 Jun 2006 17:56:25 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1Fw4Uq-0004Th-4Y for ospf@ietf.org; Thu, 29 Jun 2006 17:56:24 -0400 Received: from rtp-iport-2.cisco.com ([64.102.122.149]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1Fw4Un-0000bK-QD for ospf@ietf.org; Thu, 29 Jun 2006 17:56:24 -0400 Received: from rtp-core-1.cisco.com ([64.102.124.12]) by rtp-iport-2.cisco.com with ESMTP; 29 Jun 2006 17:56:22 -0400 X-IronPort-AV: i="4.06,193,1149480000"; d="scan'208"; a="91341729:sNHT32777598" Received: from xbh-rtp-211.amer.cisco.com (xbh-rtp-211.cisco.com [64.102.31.102]) by rtp-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5TLuKYL001399; Thu, 29 Jun 2006 17:56:21 -0400 (EDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Thu, 29 Jun 2006 17:56:20 -0400 Received: from [10.82.240.156] ([10.82.240.156]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Thu, 29 Jun 2006 17:56:19 -0400 Message-ID: <44A44C83.1000402@cisco.com> Date: Thu, 29 Jun 2006 17:56:19 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ashok Chandrashekar Holla Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart References: <000001c69b3e$b3b48e30$6601010a@SPEEDY1PC> <44A36F19.1010405@huawei.com> In-Reply-To: <44A36F19.1010405@huawei.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 29 Jun 2006 21:56:19.0810 (UTC) FILETIME=[DA7D1C20:01C69BC6] X-Spam-Score: 1.1 (+) X-Scan-Signature: 3d7f2f6612d734db849efa86ea692407 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Ashok, When you accept the new grace LSA as specified in RFC 3623, you'll update your restart timer to the new value (option 3) as specified above. I guess "updated accordingly" could have been more precisely defined. Hi Don, When the new grace LSA is originated and the grace interval is different, the checksum will be different (irrespective of the sequence number) and one of the two LSAs (new or previous) will be more recent. Normal RFC 2328 processing deals with both cases. However, anytime the contents of any LSA changes the originator should bump the sequence #. Implementation Note: I do see the possibility of a DOS attack by a restarting router that keeps changing it's restart interval. You may want to do some rate limit. Hope this helps, Acee Ashok Chandrashekar Holla wrote: > Don, > > In my case, the Grace LSA would be a new instance, with an > incremented/higher sequence number. This scenario is theoretical, but > I am considering handling it for an implementation. > > Best, > Ashok > > > Don Goodspeed wrote: > >> Ashok, Padma, >> >> I see a case where a router has restarted in between but did >> not maintain the timer it had prior to the restart so it sent >> the configured value (say 200) again after coming back online. >> >> I'd be curious to know if the sequence # is the same or has >> incremented in Ashok's case (real or theoretical). >> >> -don >> >> -----Original Message----- >> From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] Sent: >> Wednesday, June 28, 2006 9:55 PM >> To: Padma Pillay-Esnault >> Cc: ospf@ietf.org >> Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart >> >> Padma Pillay-Esnault wrote: >> >> >> >>> Ashok >>> >>> Ashok Chandrashekar Holla wrote: >>> >>> >>> >>>> Or, >>>> 3. Should it set it to a fresh value of 200s (which means that the >>>> effective grace-period is 230s)? >>>> >>>> Thanks, >>>> Ashok >>>> >>>> >>>> Ashok Chandrashekar Holla wrote: >>>> >>>> >>>> >>>>> Group, >>>>> >>>>> I have a doubt regarding the grace-period interpretation in RFC 3623. >>>>> >>>>> If a helper initially received the GR request with grace-period >>>>> 100s, and after 30s, receives a new Grace-LSA with grace-period >>>>> 200, what should the effective grace-period be? >>>>> >>>> >>>> >>> >>> In what type of scenario will it happen ? >>> >>> Padma >>> >>> >> >> Hi Padma, >> The above case will occur when the administrator (or OSPF software) >> initially chose the grace-period to be small. Later, realizing that >> all adjacencies cannot be rebuilt within this time, requested for an >> extension of the grace-period. >> >> In such cases, how will the new instance of Grace LSA be interpreted >> by the helper? >> I feel the RFC defaults implicitly to the 3rd option (listed above) >> where the helper resets the Grace-period to the new value and ignores >> the time period that has already elapsed since the original request. >> >> Am I correctly interpreting the RFC? >> >> Regards, >> Ashok >> >> >> >>>>> 1. Should the helper set the grace-period to 200s, of which 30s >>>>> have already elapsed? >>>>> 2. Should the grace-period be 300s (previous 100s + extended >>>>> 200s), of which 30s have already elapsed? >>>>> >>>>> >>>>> Thanks, >>>>> Ashok >>>>> >>>>> >>>>> _______________________________________________ >>>>> OSPF mailing list >>>>> OSPF@ietf.org >>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>> >>>>> >>>> >>>> _______________________________________________ >>>> OSPF mailing list >>>> OSPF@ietf.org >>>> https://www1.ietf.org/mailman/listinfo/ospf >>>> >>>> >>> >> >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> >> >> >> > > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 02:16:03 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwCIA-0003fz-FA; Fri, 30 Jun 2006 02:15:50 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwCI8-0003ft-Ii for ospf@ietf.org; Fri, 30 Jun 2006 02:15:48 -0400 Received: from wx-out-0102.google.com ([66.249.82.199]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FwCI8-0003yB-8v for ospf@ietf.org; Fri, 30 Jun 2006 02:15:48 -0400 Received: by wx-out-0102.google.com with SMTP id i26so179357wxd for ; Thu, 29 Jun 2006 23:15:48 -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=dwHI9VTW1ezo47IiS9Y22BTceho8YdLec5vux/rIbqWVLNpNsUCgvwbTjpb7gvTO/NqNCeOJNVwGaPtb6Mqq4F0scSakwW3hlYBOG9qMqIg3Qqfg5K7eVHVEXR+BdtYY1q+3UpjOtJOpC2dUS1IaDWqFumpqZLyIpcRhvZVBkwc= Received: by 10.70.128.1 with SMTP id a1mr67407wxd; Thu, 29 Jun 2006 23:15:45 -0700 (PDT) Received: by 10.70.7.7 with HTTP; Thu, 29 Jun 2006 23:15:45 -0700 (PDT) Message-ID: <77ead0ec0606292315m2ba5ce4dnc265e6f4bee8b3eb@mail.gmail.com> Date: Fri, 30 Jun 2006 11:45:45 +0530 From: "Vishwas Manral" To: "Acee Lindem" Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart In-Reply-To: <44A44C83.1000402@cisco.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <000001c69b3e$b3b48e30$6601010a@SPEEDY1PC> <44A36F19.1010405@huawei.com> <44A44C83.1000402@cisco.com> X-Spam-Score: 1.1 (+) X-Scan-Signature: 0cff8c3ec906d056784362c06f5f88c1 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hi Acee, Good point. More than rate limit, I prefer a hardlimit on the total number of such LSA's that can be received, as well as some bounded maximum value of time for which hitless restart can go on. Thanks, Vishwas On 6/30/06, Acee Lindem wrote: > Hi Ashok, > > When you accept the new grace LSA as specified in RFC 3623, you'll update > your restart timer to the new value (option 3) as specified above. I > guess "updated > accordingly" could have been more precisely defined. > > Hi Don, > > When the new grace LSA is originated and the grace interval is > different, the > checksum will be different (irrespective of the sequence number) and one > of the two LSAs (new or previous) will be more recent. Normal RFC 2328 > processing deals with both cases. However, anytime the contents of any LSA > changes the originator should bump the sequence #. > > Implementation Note: I do see the possibility of a DOS attack by a > restarting > router that keeps changing it's restart interval. You may want to do some > rate limit. > > Hope this helps, > Acee > > > > Ashok Chandrashekar Holla wrote: > > > Don, > > > > In my case, the Grace LSA would be a new instance, with an > > incremented/higher sequence number. This scenario is theoretical, but > > I am considering handling it for an implementation. > > > > Best, > > Ashok > > > > > > Don Goodspeed wrote: > > > >> Ashok, Padma, > >> > >> I see a case where a router has restarted in between but did > >> not maintain the timer it had prior to the restart so it sent > >> the configured value (say 200) again after coming back online. > >> > >> I'd be curious to know if the sequence # is the same or has > >> incremented in Ashok's case (real or theoretical). > >> > >> -don > >> > >> -----Original Message----- > >> From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] Sent: > >> Wednesday, June 28, 2006 9:55 PM > >> To: Padma Pillay-Esnault > >> Cc: ospf@ietf.org > >> Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart > >> > >> Padma Pillay-Esnault wrote: > >> > >> > >> > >>> Ashok > >>> > >>> Ashok Chandrashekar Holla wrote: > >>> > >>> > >>> > >>>> Or, > >>>> 3. Should it set it to a fresh value of 200s (which means that the > >>>> effective grace-period is 230s)? > >>>> > >>>> Thanks, > >>>> Ashok > >>>> > >>>> > >>>> Ashok Chandrashekar Holla wrote: > >>>> > >>>> > >>>> > >>>>> Group, > >>>>> > >>>>> I have a doubt regarding the grace-period interpretation in RFC 3623. > >>>>> > >>>>> If a helper initially received the GR request with grace-period > >>>>> 100s, and after 30s, receives a new Grace-LSA with grace-period > >>>>> 200, what should the effective grace-period be? > >>>>> > >>>> > >>>> > >>> > >>> In what type of scenario will it happen ? > >>> > >>> Padma > >>> > >>> > >> > >> Hi Padma, > >> The above case will occur when the administrator (or OSPF software) > >> initially chose the grace-period to be small. Later, realizing that > >> all adjacencies cannot be rebuilt within this time, requested for an > >> extension of the grace-period. > >> > >> In such cases, how will the new instance of Grace LSA be interpreted > >> by the helper? > >> I feel the RFC defaults implicitly to the 3rd option (listed above) > >> where the helper resets the Grace-period to the new value and ignores > >> the time period that has already elapsed since the original request. > >> > >> Am I correctly interpreting the RFC? > >> > >> Regards, > >> Ashok > >> > >> > >> > >>>>> 1. Should the helper set the grace-period to 200s, of which 30s > >>>>> have already elapsed? > >>>>> 2. Should the grace-period be 300s (previous 100s + extended > >>>>> 200s), of which 30s have already elapsed? > >>>>> > >>>>> > >>>>> Thanks, > >>>>> Ashok > >>>>> > >>>>> > >>>>> _______________________________________________ > >>>>> OSPF mailing list > >>>>> OSPF@ietf.org > >>>>> https://www1.ietf.org/mailman/listinfo/ospf > >>>>> > >>>>> > >>>> > >>>> _______________________________________________ > >>>> OSPF mailing list > >>>> OSPF@ietf.org > >>>> https://www1.ietf.org/mailman/listinfo/ospf > >>>> > >>>> > >>> > >> > >> > >> _______________________________________________ > >> OSPF mailing list > >> OSPF@ietf.org > >> https://www1.ietf.org/mailman/listinfo/ospf > >> > >> > >> > >> > > > > > > _______________________________________________ > > OSPF mailing list > > OSPF@ietf.org > > https://www1.ietf.org/mailman/listinfo/ospf > > > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 02:28:25 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwCUK-0004Dw-3C; Fri, 30 Jun 2006 02:28:24 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwCUI-0004Dr-Ss for ospf@ietf.org; Fri, 30 Jun 2006 02:28:22 -0400 Received: from ind-iport-1.cisco.com ([64.104.129.195]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FwCUF-0004Gk-Dm for ospf@ietf.org; Fri, 30 Jun 2006 02:28:22 -0400 Received: from hkg-core-1.cisco.com ([64.104.123.94]) by ind-iport-1.cisco.com with ESMTP; 30 Jun 2006 12:24:24 -0700 X-IronPort-AV: i="4.06,194,1149490800"; d="scan'208"; a="70141418:sNHT34516020" Received: from xbh-hkg-412.apac.cisco.com (xbh-hkg-412.cisco.com [64.104.123.69]) by hkg-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5U6SF6D017552; Fri, 30 Jun 2006 14:28:15 +0800 (CST) Received: from xfe-hkg-412.apac.cisco.com ([64.104.123.71]) by xbh-hkg-412.apac.cisco.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 Jun 2006 14:28:14 +0800 Received: from [192.168.1.104] ([10.66.254.8]) by xfe-hkg-412.apac.cisco.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 Jun 2006 14:28:12 +0800 Message-ID: <44A4C47A.1040404@cisco.com> Date: Thu, 29 Jun 2006 23:28:10 -0700 From: Padma Pillay-Esnault User-Agent: Mozilla Thunderbird 0.9 (Macintosh/20041103) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Vishwas Manral Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart References: <000001c69b3e$b3b48e30$6601010a@SPEEDY1PC> <44A36F19.1010405@huawei.com> <44A44C83.1000402@cisco.com> <77ead0ec0606292315m2ba5ce4dnc265e6f4bee8b3eb@mail.gmail.com> In-Reply-To: <77ead0ec0606292315m2ba5ce4dnc265e6f4bee8b3eb@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 30 Jun 2006 06:28:12.0483 (UTC) FILETIME=[5CAB1930:01C69C0E] X-Spam-Score: 1.1 (+) X-Scan-Signature: ec7c6dab5a62df223002ae71b5179d41 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Vishwas Manral wrote: > Hi Acee, > > Good point. More than rate limit, I prefer a hardlimit on the total > number of such LSA's that can be received, as well as some bounded > maximum value of time for which hitless restart can go on. > Vishwas I am in favor of having a max number of Grace LSA that can be received ( from 0 - meaning no other grace lsa is accepted once a helper received and initiated helping) The maximum value of time a GR can go is anyway going to be 1hr assuming that you do not have DNA lsas and DC configured. Padma > Thanks, > Vishwas > > On 6/30/06, Acee Lindem wrote: > >> Hi Ashok, >> >> When you accept the new grace LSA as specified in RFC 3623, you'll >> update >> your restart timer to the new value (option 3) as specified above. I >> guess "updated >> accordingly" could have been more precisely defined. >> >> Hi Don, >> >> When the new grace LSA is originated and the grace interval is >> different, the >> checksum will be different (irrespective of the sequence number) and one >> of the two LSAs (new or previous) will be more recent. Normal RFC 2328 >> processing deals with both cases. However, anytime the contents of >> any LSA >> changes the originator should bump the sequence #. >> >> Implementation Note: I do see the possibility of a DOS attack by a >> restarting >> router that keeps changing it's restart interval. You may want to do >> some >> rate limit. >> >> Hope this helps, >> Acee >> >> >> >> Ashok Chandrashekar Holla wrote: >> >> > Don, >> > >> > In my case, the Grace LSA would be a new instance, with an >> > incremented/higher sequence number. This scenario is theoretical, but >> > I am considering handling it for an implementation. >> > >> > Best, >> > Ashok >> > >> > >> > Don Goodspeed wrote: >> > >> >> Ashok, Padma, >> >> >> >> I see a case where a router has restarted in between but did >> >> not maintain the timer it had prior to the restart so it sent >> >> the configured value (say 200) again after coming back online. >> >> >> >> I'd be curious to know if the sequence # is the same or has >> >> incremented in Ashok's case (real or theoretical). >> >> >> >> -don >> >> >> >> -----Original Message----- >> >> From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] Sent: >> >> Wednesday, June 28, 2006 9:55 PM >> >> To: Padma Pillay-Esnault >> >> Cc: ospf@ietf.org >> >> Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart >> >> >> >> Padma Pillay-Esnault wrote: >> >> >> >> >> >> >> >>> Ashok >> >>> >> >>> Ashok Chandrashekar Holla wrote: >> >>> >> >>> >> >>> >> >>>> Or, >> >>>> 3. Should it set it to a fresh value of 200s (which means that the >> >>>> effective grace-period is 230s)? >> >>>> >> >>>> Thanks, >> >>>> Ashok >> >>>> >> >>>> >> >>>> Ashok Chandrashekar Holla wrote: >> >>>> >> >>>> >> >>>> >> >>>>> Group, >> >>>>> >> >>>>> I have a doubt regarding the grace-period interpretation in RFC >> 3623. >> >>>>> >> >>>>> If a helper initially received the GR request with grace-period >> >>>>> 100s, and after 30s, receives a new Grace-LSA with grace-period >> >>>>> 200, what should the effective grace-period be? >> >>>>> >> >>>> >> >>>> >> >>> >> >>> In what type of scenario will it happen ? >> >>> >> >>> Padma >> >>> >> >>> >> >> >> >> Hi Padma, >> >> The above case will occur when the administrator (or OSPF software) >> >> initially chose the grace-period to be small. Later, realizing that >> >> all adjacencies cannot be rebuilt within this time, requested for an >> >> extension of the grace-period. >> >> >> >> In such cases, how will the new instance of Grace LSA be interpreted >> >> by the helper? >> >> I feel the RFC defaults implicitly to the 3rd option (listed above) >> >> where the helper resets the Grace-period to the new value and ignores >> >> the time period that has already elapsed since the original request. >> >> >> >> Am I correctly interpreting the RFC? >> >> >> >> Regards, >> >> Ashok >> >> >> >> >> >> >> >>>>> 1. Should the helper set the grace-period to 200s, of which 30s >> >>>>> have already elapsed? >> >>>>> 2. Should the grace-period be 300s (previous 100s + extended >> >>>>> 200s), of which 30s have already elapsed? >> >>>>> >> >>>>> >> >>>>> Thanks, >> >>>>> Ashok >> >>>>> >> >>>>> >> >>>>> _______________________________________________ >> >>>>> OSPF mailing list >> >>>>> OSPF@ietf.org >> >>>>> https://www1.ietf.org/mailman/listinfo/ospf >> >>>>> >> >>>>> >> >>>> >> >>>> _______________________________________________ >> >>>> OSPF mailing list >> >>>> OSPF@ietf.org >> >>>> https://www1.ietf.org/mailman/listinfo/ospf >> >>>> >> >>>> >> >>> >> >> >> >> >> >> _______________________________________________ >> >> OSPF mailing list >> >> OSPF@ietf.org >> >> https://www1.ietf.org/mailman/listinfo/ospf >> >> >> >> >> >> >> >> >> > >> > >> > _______________________________________________ >> > OSPF mailing list >> > OSPF@ietf.org >> > https://www1.ietf.org/mailman/listinfo/ospf >> > >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 02:41:08 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwCgd-0005XC-T2; Fri, 30 Jun 2006 02:41:07 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwCgc-0005X7-RZ for ospf@ietf.org; Fri, 30 Jun 2006 02:41:06 -0400 Received: from szxga02-in.huawei.com ([61.144.161.54]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FwCgZ-0004wg-Lc for ospf@ietf.org; Fri, 30 Jun 2006 02:41:06 -0400 Received: from huawei.com (szxga02-in [172.24.2.6]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1N003KOV7XBV@szxga02-in.huawei.com> for ospf@ietf.org; Fri, 30 Jun 2006 14:55:09 +0800 (CST) Received: from huawei.com ([172.24.1.18]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1N00DEQV7W1R@szxga02-in.huawei.com> for ospf@ietf.org; Fri, 30 Jun 2006 14:55:09 +0800 (CST) Received: from [10.18.4.125] by szxml03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J1N00GESUJZS7@szxml03-in.huawei.com> for ospf@ietf.org; Fri, 30 Jun 2006 14:40:47 +0800 (CST) Date: Fri, 30 Jun 2006 12:08:51 +0530 From: Ashok Chandrashekar Holla Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart In-reply-to: <44A4C47A.1040404@cisco.com> To: Padma Pillay-Esnault Message-id: <44A4C6FB.8030806@huawei.com> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT X-Accept-Language: en-us, en User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) References: <000001c69b3e$b3b48e30$6601010a@SPEEDY1PC> <44A36F19.1010405@huawei.com> <44A44C83.1000402@cisco.com> <77ead0ec0606292315m2ba5ce4dnc265e6f4bee8b3eb@mail.gmail.com> <44A4C47A.1040404@cisco.com> X-Spam-Score: 1.1 (+) X-Scan-Signature: ff0adf256e4dd459cc25215cfa732ac1 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Padma Pillay-Esnault wrote: > Vishwas Manral wrote: > >> Hi Acee, >> >> Good point. More than rate limit, I prefer a hardlimit on the total >> number of such LSA's that can be received, as well as some bounded >> maximum value of time for which hitless restart can go on. >> > Vishwas > > I am in favor of having a max number of Grace LSA that can be received > ( from 0 - meaning no other grace lsa is accepted once a helper > received and initiated helping) > The maximum value of time a GR can go is anyway going to be 1hr assuming > that you do not have DNA lsas and DC configured. > > Padma > Actually, I think the 1800 seconds/{configuration defined Max Grace-period on Helper} will suffice to avoid any such problems. The overall grace-period (sum of initial advertisement and all subsequent extensions) should continue to be less than 1800/{configuration limit of Grace period on Helper}.There is no need for a LSA number/rate limit. But, I am wondering whether the RFC, in its current wording, is clear enough to avoid inter-op issues w.r.t to interpretation of the length of grace-period in the case of multiple Grace LSAs.. -Ashok >> Thanks, >> Vishwas >> >> On 6/30/06, Acee Lindem wrote: >> >>> Hi Ashok, >>> >>> When you accept the new grace LSA as specified in RFC 3623, you'll >>> update >>> your restart timer to the new value (option 3) as specified above. I >>> guess "updated >>> accordingly" could have been more precisely defined. >>> >>> Hi Don, >>> >>> When the new grace LSA is originated and the grace interval is >>> different, the >>> checksum will be different (irrespective of the sequence number) and >>> one >>> of the two LSAs (new or previous) will be more recent. Normal RFC 2328 >>> processing deals with both cases. However, anytime the contents of >>> any LSA >>> changes the originator should bump the sequence #. >>> >>> Implementation Note: I do see the possibility of a DOS attack by a >>> restarting >>> router that keeps changing it's restart interval. You may want to do >>> some >>> rate limit. >>> >>> Hope this helps, >>> Acee >>> >>> >>> >>> Ashok Chandrashekar Holla wrote: >>> >>> > Don, >>> > >>> > In my case, the Grace LSA would be a new instance, with an >>> > incremented/higher sequence number. This scenario is theoretical, but >>> > I am considering handling it for an implementation. >>> > >>> > Best, >>> > Ashok >>> > >>> > >>> > Don Goodspeed wrote: >>> > >>> >> Ashok, Padma, >>> >> >>> >> I see a case where a router has restarted in between but did >>> >> not maintain the timer it had prior to the restart so it sent >>> >> the configured value (say 200) again after coming back online. >>> >> >>> >> I'd be curious to know if the sequence # is the same or has >>> >> incremented in Ashok's case (real or theoretical). >>> >> >>> >> -don >>> >> >>> >> -----Original Message----- >>> >> From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] Sent: >>> >> Wednesday, June 28, 2006 9:55 PM >>> >> To: Padma Pillay-Esnault >>> >> Cc: ospf@ietf.org >>> >> Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart >>> >> >>> >> Padma Pillay-Esnault wrote: >>> >> >>> >> >>> >> >>> >>> Ashok >>> >>> >>> >>> Ashok Chandrashekar Holla wrote: >>> >>> >>> >>> >>> >>> >>> >>>> Or, >>> >>>> 3. Should it set it to a fresh value of 200s (which means that the >>> >>>> effective grace-period is 230s)? >>> >>>> >>> >>>> Thanks, >>> >>>> Ashok >>> >>>> >>> >>>> >>> >>>> Ashok Chandrashekar Holla wrote: >>> >>>> >>> >>>> >>> >>>> >>> >>>>> Group, >>> >>>>> >>> >>>>> I have a doubt regarding the grace-period interpretation in >>> RFC 3623. >>> >>>>> >>> >>>>> If a helper initially received the GR request with grace-period >>> >>>>> 100s, and after 30s, receives a new Grace-LSA with grace-period >>> >>>>> 200, what should the effective grace-period be? >>> >>>>> >>> >>>> >>> >>>> >>> >>> >>> >>> In what type of scenario will it happen ? >>> >>> >>> >>> Padma >>> >>> >>> >>> >>> >> >>> >> Hi Padma, >>> >> The above case will occur when the administrator (or OSPF software) >>> >> initially chose the grace-period to be small. Later, realizing that >>> >> all adjacencies cannot be rebuilt within this time, requested for an >>> >> extension of the grace-period. >>> >> >>> >> In such cases, how will the new instance of Grace LSA be interpreted >>> >> by the helper? >>> >> I feel the RFC defaults implicitly to the 3rd option (listed above) >>> >> where the helper resets the Grace-period to the new value and >>> ignores >>> >> the time period that has already elapsed since the original request. >>> >> >>> >> Am I correctly interpreting the RFC? >>> >> >>> >> Regards, >>> >> Ashok >>> >> >>> >> >>> >> >>> >>>>> 1. Should the helper set the grace-period to 200s, of which 30s >>> >>>>> have already elapsed? >>> >>>>> 2. Should the grace-period be 300s (previous 100s + extended >>> >>>>> 200s), of which 30s have already elapsed? >>> >>>>> >>> >>>>> >>> >>>>> Thanks, >>> >>>>> Ashok >>> >>>>> >>> >>>>> >>> >>>>> _______________________________________________ >>> >>>>> OSPF mailing list >>> >>>>> OSPF@ietf.org >>> >>>>> https://www1.ietf.org/mailman/listinfo/ospf >>> >>>>> >>> >>>>> >>> >>>> >>> >>>> _______________________________________________ >>> >>>> OSPF mailing list >>> >>>> OSPF@ietf.org >>> >>>> https://www1.ietf.org/mailman/listinfo/ospf >>> >>>> >>> >>>> >>> >>> >>> >> >>> >> >>> >> _______________________________________________ >>> >> OSPF mailing list >>> >> OSPF@ietf.org >>> >> https://www1.ietf.org/mailman/listinfo/ospf >>> >> >>> >> >>> >> >>> >> >>> > >>> > >>> > _______________________________________________ >>> > OSPF mailing list >>> > OSPF@ietf.org >>> > https://www1.ietf.org/mailman/listinfo/ospf >>> > >>> >>> _______________________________________________ >>> OSPF mailing list >>> OSPF@ietf.org >>> https://www1.ietf.org/mailman/listinfo/ospf >>> >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 02:47:31 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwCmo-00064d-PS; Fri, 30 Jun 2006 02:47:30 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwCmn-00064Y-2U for ospf@ietf.org; Fri, 30 Jun 2006 02:47:29 -0400 Received: from szxga02-in.huawei.com ([61.144.161.54]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FwCml-0005ae-Sr for ospf@ietf.org; Fri, 30 Jun 2006 02:47:29 -0400 Received: from huawei.com (szxga02-in [172.24.2.6]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1N003P6VL2BV@szxga02-in.huawei.com> for ospf@ietf.org; Fri, 30 Jun 2006 15:03:02 +0800 (CST) Received: from huawei.com ([172.24.1.18]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1N00IZQVL1RN@szxga02-in.huawei.com> for ospf@ietf.org; Fri, 30 Jun 2006 15:03:02 +0800 (CST) Received: from dell60 ([10.18.7.113]) by szxml03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J1N00G0EUX3S7@szxml03-in.huawei.com> for ospf@ietf.org; Fri, 30 Jun 2006 14:48:40 +0800 (CST) Date: Fri, 30 Jun 2006 12:16:43 +0530 From: sujay Subject: RE: [OSPF] Query regarding grace-period in Garceful-restart In-reply-to: <44A4C47A.1040404@cisco.com> To: 'Padma Pillay-Esnault' , 'Vishwas Manral' Message-id: <000001c69c10$f3b45790$7107120a@china.huawei.com> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1807 X-Mailer: Microsoft Outlook, Build 10.0.4024 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal X-Spam-Score: 1.1 (+) X-Scan-Signature: 32029c790f79bd4a84a26bd2915c54b9 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org While it is a good point to add this condition ie.controlling the Max No. of LSA's. this count should be kept by default as Zero.(0) For once the restart has begun, the idea of once again sending grace lsa's with varied contents assuming the helpers will extend the lease period + ensuring they have all received it. And, all this happening when the control plane is undergoing a restart. Looks more like the initial grace period configured was a misfit. The primary behaviour for helpers should be to reject any new grace lsa's once in restart mode, or the count as Zero. Regds, Sujay G My Location; http://maps.google.com/maps?ll=14.626109,76.959229&spn=4.724852,7.525085 &t=h&hl=en This e-mail and attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient's) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! -----Original Message----- From: Padma Pillay-Esnault [mailto:ppe@cisco.com] Sent: Friday, June 30, 2006 11:58 AM To: Vishwas Manral Cc: ospf@ietf.org Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart Vishwas Manral wrote: > Hi Acee, > > Good point. More than rate limit, I prefer a hardlimit on the total > number of such LSA's that can be received, as well as some bounded > maximum value of time for which hitless restart can go on. > Vishwas I am in favor of having a max number of Grace LSA that can be received ( from 0 - meaning no other grace lsa is accepted once a helper received and initiated helping) The maximum value of time a GR can go is anyway going to be 1hr assuming that you do not have DNA lsas and DC configured. Padma > Thanks, > Vishwas > > On 6/30/06, Acee Lindem wrote: > >> Hi Ashok, >> >> When you accept the new grace LSA as specified in RFC 3623, you'll >> update >> your restart timer to the new value (option 3) as specified above. I >> guess "updated >> accordingly" could have been more precisely defined. >> >> Hi Don, >> >> When the new grace LSA is originated and the grace interval is >> different, the checksum will be different (irrespective of the >> sequence number) and one of the two LSAs (new or previous) will be >> more recent. Normal RFC 2328 processing deals with both cases. >> However, anytime the contents of any LSA >> changes the originator should bump the sequence #. >> >> Implementation Note: I do see the possibility of a DOS attack by a >> restarting router that keeps changing it's restart interval. You may >> want to do some >> rate limit. >> >> Hope this helps, >> Acee >> >> >> >> Ashok Chandrashekar Holla wrote: >> >> > Don, >> > >> > In my case, the Grace LSA would be a new instance, with an >> > incremented/higher sequence number. This scenario is theoretical, >> > but I am considering handling it for an implementation. >> > >> > Best, >> > Ashok >> > >> > >> > Don Goodspeed wrote: >> > >> >> Ashok, Padma, >> >> >> >> I see a case where a router has restarted in between but did not >> >> maintain the timer it had prior to the restart so it sent the >> >> configured value (say 200) again after coming back online. >> >> >> >> I'd be curious to know if the sequence # is the same or has >> >> incremented in Ashok's case (real or theoretical). >> >> >> >> -don >> >> >> >> -----Original Message----- >> >> From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] Sent: >> >> Wednesday, June 28, 2006 9:55 PM >> >> To: Padma Pillay-Esnault >> >> Cc: ospf@ietf.org >> >> Subject: Re: [OSPF] Query regarding grace-period in >> >> Garceful-restart >> >> >> >> Padma Pillay-Esnault wrote: >> >> >> >> >> >> >> >>> Ashok >> >>> >> >>> Ashok Chandrashekar Holla wrote: >> >>> >> >>> >> >>> >> >>>> Or, >> >>>> 3. Should it set it to a fresh value of 200s (which means that >> >>>> the effective grace-period is 230s)? >> >>>> >> >>>> Thanks, >> >>>> Ashok >> >>>> >> >>>> >> >>>> Ashok Chandrashekar Holla wrote: >> >>>> >> >>>> >> >>>> >> >>>>> Group, >> >>>>> >> >>>>> I have a doubt regarding the grace-period interpretation in RFC >> 3623. >> >>>>> >> >>>>> If a helper initially received the GR request with grace-period >> >>>>> 100s, and after 30s, receives a new Grace-LSA with grace-period >> >>>>> 200, what should the effective grace-period be? >> >>>>> >> >>>> >> >>>> >> >>> >> >>> In what type of scenario will it happen ? >> >>> >> >>> Padma >> >>> >> >>> >> >> >> >> Hi Padma, >> >> The above case will occur when the administrator (or OSPF >> >> software) initially chose the grace-period to be small. Later, >> >> realizing that all adjacencies cannot be rebuilt within this time, >> >> requested for an extension of the grace-period. >> >> >> >> In such cases, how will the new instance of Grace LSA be >> >> interpreted by the helper? I feel the RFC defaults implicitly to >> >> the 3rd option (listed above) where the helper resets the >> >> Grace-period to the new value and ignores the time period that has >> >> already elapsed since the original request. >> >> >> >> Am I correctly interpreting the RFC? >> >> >> >> Regards, >> >> Ashok >> >> >> >> >> >> >> >>>>> 1. Should the helper set the grace-period to 200s, of which 30s >> >>>>> have already elapsed? 2. Should the grace-period be 300s >> >>>>> (previous 100s + extended 200s), of which 30s have already >> >>>>> elapsed? >> >>>>> >> >>>>> >> >>>>> Thanks, >> >>>>> Ashok >> >>>>> >> >>>>> >> >>>>> _______________________________________________ >> >>>>> OSPF mailing list >> >>>>> OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf >> >>>>> >> >>>>> >> >>>> >> >>>> _______________________________________________ >> >>>> OSPF mailing list >> >>>> OSPF@ietf.org >> >>>> https://www1.ietf.org/mailman/listinfo/ospf >> >>>> >> >>>> >> >>> >> >> >> >> >> >> _______________________________________________ >> >> OSPF mailing list >> >> OSPF@ietf.org >> >> https://www1.ietf.org/mailman/listinfo/ospf >> >> >> >> >> >> >> >> >> > >> > >> > _______________________________________________ >> > OSPF mailing list >> > OSPF@ietf.org >> > https://www1.ietf.org/mailman/listinfo/ospf >> > >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 03:48:49 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwDk3-0004gp-Fr; Fri, 30 Jun 2006 03:48:43 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwDk2-0004gk-9v for ospf@ietf.org; Fri, 30 Jun 2006 03:48:42 -0400 Received: from ind-iport-1.cisco.com ([64.104.129.195]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FwDk0-0003Dx-Sx for ospf@ietf.org; Fri, 30 Jun 2006 03:48:42 -0400 Received: from hkg-core-1.cisco.com ([64.104.123.94]) by ind-iport-1.cisco.com with ESMTP; 30 Jun 2006 13:44:47 -0700 X-IronPort-AV: i="4.06,194,1149490800"; d="scan'208"; a="70151253:sNHT34559216" Received: from xbh-hkg-412.apac.cisco.com (xbh-hkg-412.cisco.com [64.104.123.69]) by hkg-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5U7mb6D027981; Fri, 30 Jun 2006 15:48:37 +0800 (CST) Received: from xfe-hkg-412.apac.cisco.com ([64.104.123.71]) by xbh-hkg-412.apac.cisco.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 Jun 2006 15:48:36 +0800 Received: from [192.168.1.104] ([10.66.254.8]) by xfe-hkg-412.apac.cisco.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 Jun 2006 15:48:35 +0800 Message-ID: <44A4D750.3080505@cisco.com> Date: Fri, 30 Jun 2006 00:48:32 -0700 From: Padma Pillay-Esnault User-Agent: Mozilla Thunderbird 0.9 (Macintosh/20041103) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ashok Chandrashekar Holla Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart References: <000001c69b3e$b3b48e30$6601010a@SPEEDY1PC> <44A36F19.1010405@huawei.com> <44A44C83.1000402@cisco.com> <77ead0ec0606292315m2ba5ce4dnc265e6f4bee8b3eb@mail.gmail.com> <44A4C47A.1040404@cisco.com> <44A4C6FB.8030806@huawei.com> In-Reply-To: <44A4C6FB.8030806@huawei.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 30 Jun 2006 07:48:35.0593 (UTC) FILETIME=[97774790:01C69C19] X-Spam-Score: 1.1 (+) X-Scan-Signature: 7698d1420ecbbce1995432e99bb6d1a1 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Ashok Chandrashekar Holla wrote: > Padma Pillay-Esnault wrote: > >> Vishwas Manral wrote: >> >>> Hi Acee, >>> >>> Good point. More than rate limit, I prefer a hardlimit on the total >>> number of such LSA's that can be received, as well as some bounded >>> maximum value of time for which hitless restart can go on. >>> >> Vishwas >> >> I am in favor of having a max number of Grace LSA that can be received >> ( from 0 - meaning no other grace lsa is accepted once a helper >> received and initiated helping) >> The maximum value of time a GR can go is anyway going to be 1hr assuming >> that you do not have DNA lsas and DC configured. >> >> Padma >> > Actually, I think the 1800 seconds/{configuration defined Max > Grace-period on Helper} will suffice to avoid any such problems. > The overall grace-period (sum of initial advertisement and all > subsequent extensions) should continue to be less than > 1800/{configuration limit of Grace period on Helper}.There is no need > for a LSA number/rate limit. > But, I am wondering whether the RFC, in its current wording, is clear > enough to avoid inter-op issues w.r.t to interpretation of the length > of grace-period in the case of multiple Grace LSAs.. > -Ashok I think the RFC is vague enough to allow people to tailor their implementations and I don't think that there is an interoperability problem per se. This is also an internal implemental decision of the helper which already has a number of possible configs - when to accept to help for example. Padma > >>> Thanks, >>> Vishwas >>> >>> On 6/30/06, Acee Lindem wrote: >>> >>>> Hi Ashok, >>>> >>>> When you accept the new grace LSA as specified in RFC 3623, you'll >>>> update >>>> your restart timer to the new value (option 3) as specified above. I >>>> guess "updated >>>> accordingly" could have been more precisely defined. >>>> >>>> Hi Don, >>>> >>>> When the new grace LSA is originated and the grace interval is >>>> different, the >>>> checksum will be different (irrespective of the sequence number) >>>> and one >>>> of the two LSAs (new or previous) will be more recent. Normal RFC 2328 >>>> processing deals with both cases. However, anytime the contents >>>> of any LSA >>>> changes the originator should bump the sequence #. >>>> >>>> Implementation Note: I do see the possibility of a DOS attack by a >>>> restarting >>>> router that keeps changing it's restart interval. You may want to >>>> do some >>>> rate limit. >>>> >>>> Hope this helps, >>>> Acee >>>> >>>> >>>> >>>> Ashok Chandrashekar Holla wrote: >>>> >>>> > Don, >>>> > >>>> > In my case, the Grace LSA would be a new instance, with an >>>> > incremented/higher sequence number. This scenario is theoretical, >>>> but >>>> > I am considering handling it for an implementation. >>>> > >>>> > Best, >>>> > Ashok >>>> > >>>> > >>>> > Don Goodspeed wrote: >>>> > >>>> >> Ashok, Padma, >>>> >> >>>> >> I see a case where a router has restarted in between but did >>>> >> not maintain the timer it had prior to the restart so it sent >>>> >> the configured value (say 200) again after coming back online. >>>> >> >>>> >> I'd be curious to know if the sequence # is the same or has >>>> >> incremented in Ashok's case (real or theoretical). >>>> >> >>>> >> -don >>>> >> >>>> >> -----Original Message----- >>>> >> From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] Sent: >>>> >> Wednesday, June 28, 2006 9:55 PM >>>> >> To: Padma Pillay-Esnault >>>> >> Cc: ospf@ietf.org >>>> >> Subject: Re: [OSPF] Query regarding grace-period in >>>> Garceful-restart >>>> >> >>>> >> Padma Pillay-Esnault wrote: >>>> >> >>>> >> >>>> >> >>>> >>> Ashok >>>> >>> >>>> >>> Ashok Chandrashekar Holla wrote: >>>> >>> >>>> >>> >>>> >>> >>>> >>>> Or, >>>> >>>> 3. Should it set it to a fresh value of 200s (which means that >>>> the >>>> >>>> effective grace-period is 230s)? >>>> >>>> >>>> >>>> Thanks, >>>> >>>> Ashok >>>> >>>> >>>> >>>> >>>> >>>> Ashok Chandrashekar Holla wrote: >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>>> Group, >>>> >>>>> >>>> >>>>> I have a doubt regarding the grace-period interpretation in >>>> RFC 3623. >>>> >>>>> >>>> >>>>> If a helper initially received the GR request with grace-period >>>> >>>>> 100s, and after 30s, receives a new Grace-LSA with grace-period >>>> >>>>> 200, what should the effective grace-period be? >>>> >>>>> >>>> >>>> >>>> >>>> >>>> >>> >>>> >>> In what type of scenario will it happen ? >>>> >>> >>>> >>> Padma >>>> >>> >>>> >>> >>>> >> >>>> >> Hi Padma, >>>> >> The above case will occur when the administrator (or OSPF software) >>>> >> initially chose the grace-period to be small. Later, realizing that >>>> >> all adjacencies cannot be rebuilt within this time, requested >>>> for an >>>> >> extension of the grace-period. >>>> >> >>>> >> In such cases, how will the new instance of Grace LSA be >>>> interpreted >>>> >> by the helper? >>>> >> I feel the RFC defaults implicitly to the 3rd option (listed above) >>>> >> where the helper resets the Grace-period to the new value and >>>> ignores >>>> >> the time period that has already elapsed since the original >>>> request. >>>> >> >>>> >> Am I correctly interpreting the RFC? >>>> >> >>>> >> Regards, >>>> >> Ashok >>>> >> >>>> >> >>>> >> >>>> >>>>> 1. Should the helper set the grace-period to 200s, of which 30s >>>> >>>>> have already elapsed? >>>> >>>>> 2. Should the grace-period be 300s (previous 100s + extended >>>> >>>>> 200s), of which 30s have already elapsed? >>>> >>>>> >>>> >>>>> >>>> >>>>> Thanks, >>>> >>>>> Ashok >>>> >>>>> >>>> >>>>> >>>> >>>>> _______________________________________________ >>>> >>>>> OSPF mailing list >>>> >>>>> OSPF@ietf.org >>>> >>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>> >>>>> >>>> >>>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> >>>> OSPF mailing list >>>> >>>> OSPF@ietf.org >>>> >>>> https://www1.ietf.org/mailman/listinfo/ospf >>>> >>>> >>>> >>>> >>>> >>> >>>> >> >>>> >> >>>> >> _______________________________________________ >>>> >> OSPF mailing list >>>> >> OSPF@ietf.org >>>> >> https://www1.ietf.org/mailman/listinfo/ospf >>>> >> >>>> >> >>>> >> >>>> >> >>>> > >>>> > >>>> > _______________________________________________ >>>> > OSPF mailing list >>>> > OSPF@ietf.org >>>> > https://www1.ietf.org/mailman/listinfo/ospf >>>> > >>>> >>>> _______________________________________________ >>>> OSPF mailing list >>>> OSPF@ietf.org >>>> https://www1.ietf.org/mailman/listinfo/ospf >>>> >>> >>> _______________________________________________ >>> OSPF mailing list >>> OSPF@ietf.org >>> https://www1.ietf.org/mailman/listinfo/ospf >>> >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 03:50:55 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwDmB-0004sL-KH; Fri, 30 Jun 2006 03:50:55 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwDmA-0004sG-4B for ospf@ietf.org; Fri, 30 Jun 2006 03:50:54 -0400 Received: from ind-iport-1.cisco.com ([64.104.129.195]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FwDm7-0003cK-Ms for ospf@ietf.org; Fri, 30 Jun 2006 03:50:54 -0400 Received: from hkg-core-1.cisco.com ([64.104.123.94]) by ind-iport-1.cisco.com with ESMTP; 30 Jun 2006 13:46:58 -0700 X-IronPort-AV: i="4.06,194,1149490800"; d="scan'208"; a="70151426:sNHT36824920" Received: from xbh-hkg-412.apac.cisco.com (xbh-hkg-412.cisco.com [64.104.123.69]) by hkg-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5U7oe6J028236; Fri, 30 Jun 2006 15:50:48 +0800 (CST) Received: from xfe-hkg-412.apac.cisco.com ([64.104.123.71]) by xbh-hkg-412.apac.cisco.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 Jun 2006 15:50:43 +0800 Received: from [192.168.1.104] ([10.66.254.8]) by xfe-hkg-412.apac.cisco.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 Jun 2006 15:50:42 +0800 Message-ID: <44A4D7D0.7040804@cisco.com> Date: Fri, 30 Jun 2006 00:50:40 -0700 From: Padma Pillay-Esnault User-Agent: Mozilla Thunderbird 0.9 (Macintosh/20041103) X-Accept-Language: en-us, en MIME-Version: 1.0 To: sujay Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart References: <000001c69c10$f3b45790$7107120a@china.huawei.com> In-Reply-To: <000001c69c10$f3b45790$7107120a@china.huawei.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 30 Jun 2006 07:50:42.0669 (UTC) FILETIME=[E33589D0:01C69C19] X-Spam-Score: 1.1 (+) X-Scan-Signature: 7e267523e0685e5aa2dbbdde4b659686 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org sujay wrote: >While it is a good point to add this condition ie.controlling the Max >No. of LSA's. >this count should be kept by default as Zero.(0) > > > Sujay This should be only a recommendation for implementations. Padma >For once the restart has begun, the idea of once again sending grace >lsa's with varied contents >assuming the helpers will extend the lease period + ensuring they have >all received it. And, >all this happening when the control plane is undergoing a restart. >Looks more like the initial grace period configured was a misfit. > >The primary behaviour for helpers should be to reject any new grace >lsa's once in restart mode, or >the count as Zero. > >Regds, >Sujay G >My Location; >http://maps.google.com/maps?ll=14.626109,76.959229&spn=4.724852,7.525085 >&t=h&hl=en > > >This e-mail and attachments contain confidential information from >HUAWEI, which is intended only for the person or entity whose address is >listed above. Any use of the information contained herein in any way >(including, but not limited to, total or partial disclosure, >reproduction, or dissemination) by persons other than the intended >recipient's) is prohibited. If you receive this e-mail in error, please >notify the sender by phone or email immediately and delete it! > >-----Original Message----- >From: Padma Pillay-Esnault [mailto:ppe@cisco.com] >Sent: Friday, June 30, 2006 11:58 AM >To: Vishwas Manral >Cc: ospf@ietf.org >Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart > > >Vishwas Manral wrote: > > > >>Hi Acee, >> >>Good point. More than rate limit, I prefer a hardlimit on the total >>number of such LSA's that can be received, as well as some bounded >>maximum value of time for which hitless restart can go on. >> >> >> >Vishwas > >I am in favor of having a max number of Grace LSA that can be received ( >from 0 - meaning no other grace lsa is accepted once a helper received >and initiated helping) >The maximum value of time a GR can go is anyway going to be 1hr assuming >that you do not have DNA lsas and DC configured. > >Padma > > > >>Thanks, >>Vishwas >> >>On 6/30/06, Acee Lindem wrote: >> >> >> >>>Hi Ashok, >>> >>>When you accept the new grace LSA as specified in RFC 3623, you'll >>>update >>>your restart timer to the new value (option 3) as specified above. I >>>guess "updated >>>accordingly" could have been more precisely defined. >>> >>>Hi Don, >>> >>>When the new grace LSA is originated and the grace interval is >>>different, the checksum will be different (irrespective of the >>>sequence number) and one of the two LSAs (new or previous) will be >>>more recent. Normal RFC 2328 processing deals with both cases. >>>However, anytime the contents of any LSA >>>changes the originator should bump the sequence #. >>> >>>Implementation Note: I do see the possibility of a DOS attack by a >>>restarting router that keeps changing it's restart interval. You may >>>want to do some >>>rate limit. >>> >>>Hope this helps, >>>Acee >>> >>> >>> >>>Ashok Chandrashekar Holla wrote: >>> >>> >>> >>>>Don, >>>> >>>>In my case, the Grace LSA would be a new instance, with an >>>>incremented/higher sequence number. This scenario is theoretical, >>>>but I am considering handling it for an implementation. >>>> >>>>Best, >>>>Ashok >>>> >>>> >>>>Don Goodspeed wrote: >>>> >>>> >>>> >>>>>Ashok, Padma, >>>>> >>>>>I see a case where a router has restarted in between but did not >>>>>maintain the timer it had prior to the restart so it sent the >>>>>configured value (say 200) again after coming back online. >>>>> >>>>>I'd be curious to know if the sequence # is the same or has >>>>>incremented in Ashok's case (real or theoretical). >>>>> >>>>>-don >>>>> >>>>>-----Original Message----- >>>>>From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] Sent: >>>>> >>>>> > > > >>>>>Wednesday, June 28, 2006 9:55 PM >>>>>To: Padma Pillay-Esnault >>>>>Cc: ospf@ietf.org >>>>>Subject: Re: [OSPF] Query regarding grace-period in >>>>>Garceful-restart >>>>> >>>>>Padma Pillay-Esnault wrote: >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>Ashok >>>>>> >>>>>>Ashok Chandrashekar Holla wrote: >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>>Or, >>>>>>>3. Should it set it to a fresh value of 200s (which means that >>>>>>>the effective grace-period is 230s)? >>>>>>> >>>>>>>Thanks, >>>>>>>Ashok >>>>>>> >>>>>>> >>>>>>>Ashok Chandrashekar Holla wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>Group, >>>>>>>> >>>>>>>>I have a doubt regarding the grace-period interpretation in RFC >>>>>>>> >>>>>>>> >>>3623. >>> >>> >>>>>>>>If a helper initially received the GR request with grace-period >>>>>>>> >>>>>>>> > > > >>>>>>>>100s, and after 30s, receives a new Grace-LSA with grace-period >>>>>>>> >>>>>>>> > > > >>>>>>>>200, what should the effective grace-period be? >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>In what type of scenario will it happen ? >>>>>> >>>>>>Padma >>>>>> >>>>>> >>>>>> >>>>>> >>>>>Hi Padma, >>>>>The above case will occur when the administrator (or OSPF >>>>>software) initially chose the grace-period to be small. Later, >>>>>realizing that all adjacencies cannot be rebuilt within this time, >>>>> >>>>> > > > >>>>>requested for an extension of the grace-period. >>>>> >>>>>In such cases, how will the new instance of Grace LSA be >>>>>interpreted by the helper? I feel the RFC defaults implicitly to >>>>>the 3rd option (listed above) where the helper resets the >>>>>Grace-period to the new value and ignores the time period that has >>>>> >>>>> > > > >>>>>already elapsed since the original request. >>>>> >>>>>Am I correctly interpreting the RFC? >>>>> >>>>>Regards, >>>>>Ashok >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>>>1. Should the helper set the grace-period to 200s, of which 30s >>>>>>>> >>>>>>>> > > > >>>>>>>>have already elapsed? 2. Should the grace-period be 300s >>>>>>>>(previous 100s + extended 200s), of which 30s have already >>>>>>>>elapsed? >>>>>>>> >>>>>>>> >>>>>>>>Thanks, >>>>>>>>Ashok >>>>>>>> >>>>>>>> >>>>>>>>_______________________________________________ >>>>>>>>OSPF mailing list >>>>>>>>OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>_______________________________________________ >>>>>>>OSPF mailing list >>>>>>>OSPF@ietf.org >>>>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>_______________________________________________ >>>>>OSPF mailing list >>>>>OSPF@ietf.org >>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>_______________________________________________ >>>>OSPF mailing list >>>>OSPF@ietf.org >>>>https://www1.ietf.org/mailman/listinfo/ospf >>>> >>>> >>>> >>>_______________________________________________ >>>OSPF mailing list >>>OSPF@ietf.org >>>https://www1.ietf.org/mailman/listinfo/ospf >>> >>> >>> >>_______________________________________________ >>OSPF mailing list >>OSPF@ietf.org >>https://www1.ietf.org/mailman/listinfo/ospf >> >> >> > >_______________________________________________ >OSPF mailing list >OSPF@ietf.org >https://www1.ietf.org/mailman/listinfo/ospf > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 04:26:37 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwEKb-0002rm-8T; Fri, 30 Jun 2006 04:26:29 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwEKZ-0002rh-KG for ospf@ietf.org; Fri, 30 Jun 2006 04:26:27 -0400 Received: from szxga02-in.huawei.com ([61.144.161.54]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FwEKV-0005xw-BE for ospf@ietf.org; Fri, 30 Jun 2006 04:26:27 -0400 Received: from huawei.com (szxga02-in [172.24.2.6]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1N00H9OZY5N0@szxga02-in.huawei.com> for ospf@ietf.org; Fri, 30 Jun 2006 16:37:18 +0800 (CST) Received: from huawei.com ([172.24.1.18]) by szxga02-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0J1N008ZIZY4SD@szxga02-in.huawei.com> for ospf@ietf.org; Fri, 30 Jun 2006 16:37:17 +0800 (CST) Received: from dell60 ([10.18.7.113]) by szxml03-in.huawei.com (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTPA id <0J1N00HFQZA6E7@szxml03-in.huawei.com> for ospf@ietf.org; Fri, 30 Jun 2006 16:22:55 +0800 (CST) Date: Fri, 30 Jun 2006 13:50:59 +0530 From: sujay Subject: RE: [OSPF] Query regarding grace-period in Garceful-restart In-reply-to: <44A4D750.3080505@cisco.com> To: 'Padma Pillay-Esnault' Message-id: <000101c69c1e$1e7f02b0$7107120a@china.huawei.com> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1807 X-Mailer: Microsoft Outlook, Build 10.0.4024 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7BIT Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal X-Spam-Score: 1.1 (+) X-Scan-Signature: 410b68b37343617c6913e76d02180b14 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Padma, I do see an inter-op issue for a simple scenario. Where the restarting router has assumed the helpers have a incremented the lease period to (x+y) , whereas one helper has not, but it could have, provided the behaviour was defined. Results in a pre-mature exit -gr condition for the sole reason of an undefined behavior. Please correct me. Regds, Sujay G My Location; http://maps.google.com/maps?ll=14.626109,76.959229&spn=4.724852,7.525085 &t=h&hl=en This e-mail and attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient's) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! -----Original Message----- From: Padma Pillay-Esnault [mailto:ppe@cisco.com] Sent: Friday, June 30, 2006 1:19 PM To: Ashok Chandrashekar Holla Cc: ospf@ietf.org Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart Ashok Chandrashekar Holla wrote: > Padma Pillay-Esnault wrote: > >> Vishwas Manral wrote: >> >>> Hi Acee, >>> >>> Good point. More than rate limit, I prefer a hardlimit on the total >>> number of such LSA's that can be received, as well as some bounded >>> maximum value of time for which hitless restart can go on. >>> >> Vishwas >> >> I am in favor of having a max number of Grace LSA that can be >> received ( from 0 - meaning no other grace lsa is accepted once a >> helper received and initiated helping) The maximum value of time a GR >> can go is anyway going to be 1hr assuming that you do not have DNA >> lsas and DC configured. >> >> Padma >> > Actually, I think the 1800 seconds/{configuration defined Max > Grace-period on Helper} will suffice to avoid any such problems. > The overall grace-period (sum of initial advertisement and all > subsequent extensions) should continue to be less than > 1800/{configuration limit of Grace period on Helper}.There is no need > for a LSA number/rate limit. > But, I am wondering whether the RFC, in its current wording, is clear > enough to avoid inter-op issues w.r.t to interpretation of the length > of grace-period in the case of multiple Grace LSAs.. > -Ashok I think the RFC is vague enough to allow people to tailor their implementations and I don't think that there is an interoperability problem per se. This is also an internal implemental decision of the helper which already has a number of possible configs - when to accept to help for example. Padma > >>> Thanks, >>> Vishwas >>> >>> On 6/30/06, Acee Lindem wrote: >>> >>>> Hi Ashok, >>>> >>>> When you accept the new grace LSA as specified in RFC 3623, you'll >>>> update >>>> your restart timer to the new value (option 3) as specified above. I >>>> guess "updated >>>> accordingly" could have been more precisely defined. >>>> >>>> Hi Don, >>>> >>>> When the new grace LSA is originated and the grace interval is >>>> different, the checksum will be different (irrespective of the >>>> sequence number) and one >>>> of the two LSAs (new or previous) will be more recent. Normal RFC 2328 >>>> processing deals with both cases. However, anytime the contents >>>> of any LSA >>>> changes the originator should bump the sequence #. >>>> >>>> Implementation Note: I do see the possibility of a DOS attack by a >>>> restarting router that keeps changing it's restart interval. You >>>> may want to do some >>>> rate limit. >>>> >>>> Hope this helps, >>>> Acee >>>> >>>> >>>> >>>> Ashok Chandrashekar Holla wrote: >>>> >>>> > Don, >>>> > >>>> > In my case, the Grace LSA would be a new instance, with an >>>> > incremented/higher sequence number. This scenario is theoretical, >>>> but >>>> > I am considering handling it for an implementation. >>>> > >>>> > Best, >>>> > Ashok >>>> > >>>> > >>>> > Don Goodspeed wrote: >>>> > >>>> >> Ashok, Padma, >>>> >> >>>> >> I see a case where a router has restarted in between but did not >>>> >> maintain the timer it had prior to the restart so it sent the >>>> >> configured value (say 200) again after coming back online. >>>> >> >>>> >> I'd be curious to know if the sequence # is the same or has >>>> >> incremented in Ashok's case (real or theoretical). >>>> >> >>>> >> -don >>>> >> >>>> >> -----Original Message----- >>>> >> From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] >>>> >> Sent: Wednesday, June 28, 2006 9:55 PM >>>> >> To: Padma Pillay-Esnault >>>> >> Cc: ospf@ietf.org >>>> >> Subject: Re: [OSPF] Query regarding grace-period in >>>> Garceful-restart >>>> >> >>>> >> Padma Pillay-Esnault wrote: >>>> >> >>>> >> >>>> >> >>>> >>> Ashok >>>> >>> >>>> >>> Ashok Chandrashekar Holla wrote: >>>> >>> >>>> >>> >>>> >>> >>>> >>>> Or, >>>> >>>> 3. Should it set it to a fresh value of 200s (which means that >>>> the >>>> >>>> effective grace-period is 230s)? >>>> >>>> >>>> >>>> Thanks, >>>> >>>> Ashok >>>> >>>> >>>> >>>> >>>> >>>> Ashok Chandrashekar Holla wrote: >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>>> Group, >>>> >>>>> >>>> >>>>> I have a doubt regarding the grace-period interpretation in >>>> RFC 3623. >>>> >>>>> >>>> >>>>> If a helper initially received the GR request with >>>> >>>>> grace-period 100s, and after 30s, receives a new Grace-LSA >>>> >>>>> with grace-period 200, what should the effective grace-period >>>> >>>>> be? >>>> >>>>> >>>> >>>> >>>> >>>> >>>> >>> >>>> >>> In what type of scenario will it happen ? >>>> >>> >>>> >>> Padma >>>> >>> >>>> >>> >>>> >> >>>> >> Hi Padma, >>>> >> The above case will occur when the administrator (or OSPF >>>> >> software) initially chose the grace-period to be small. Later, >>>> >> realizing that all adjacencies cannot be rebuilt within this >>>> >> time, requested >>>> for an >>>> >> extension of the grace-period. >>>> >> >>>> >> In such cases, how will the new instance of Grace LSA be >>>> interpreted >>>> >> by the helper? >>>> >> I feel the RFC defaults implicitly to the 3rd option (listed >>>> >> above) where the helper resets the Grace-period to the new value >>>> >> and >>>> ignores >>>> >> the time period that has already elapsed since the original >>>> request. >>>> >> >>>> >> Am I correctly interpreting the RFC? >>>> >> >>>> >> Regards, >>>> >> Ashok >>>> >> >>>> >> >>>> >> >>>> >>>>> 1. Should the helper set the grace-period to 200s, of which >>>> >>>>> 30s have already elapsed? 2. Should the grace-period be 300s >>>> >>>>> (previous 100s + extended 200s), of which 30s have already >>>> >>>>> elapsed? >>>> >>>>> >>>> >>>>> >>>> >>>>> Thanks, >>>> >>>>> Ashok >>>> >>>>> >>>> >>>>> >>>> >>>>> _______________________________________________ >>>> >>>>> OSPF mailing list >>>> >>>>> OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf >>>> >>>>> >>>> >>>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> >>>> OSPF mailing list >>>> >>>> OSPF@ietf.org >>>> >>>> https://www1.ietf.org/mailman/listinfo/ospf >>>> >>>> >>>> >>>> >>>> >>> >>>> >> >>>> >> >>>> >> _______________________________________________ >>>> >> OSPF mailing list >>>> >> OSPF@ietf.org >>>> >> https://www1.ietf.org/mailman/listinfo/ospf >>>> >> >>>> >> >>>> >> >>>> >> >>>> > >>>> > >>>> > _______________________________________________ >>>> > OSPF mailing list >>>> > OSPF@ietf.org >>>> > https://www1.ietf.org/mailman/listinfo/ospf >>>> > >>>> >>>> _______________________________________________ >>>> OSPF mailing list >>>> OSPF@ietf.org >>>> https://www1.ietf.org/mailman/listinfo/ospf >>>> >>> >>> _______________________________________________ >>> OSPF mailing list >>> OSPF@ietf.org >>> https://www1.ietf.org/mailman/listinfo/ospf >>> >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 05:22:25 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwFCe-0003hT-Go; Fri, 30 Jun 2006 05:22:20 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwFCc-0003hG-Ue for ospf@ietf.org; Fri, 30 Jun 2006 05:22:18 -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 1FwFCc-0002SH-T1 for ospf@ietf.org; Fri, 30 Jun 2006 05:22:18 -0400 Received: from ind-iport-1.cisco.com ([64.104.129.195]) by chiedprmail1.ietf.org with esmtp (Exim 4.43) id 1FwF24-0002Ka-E4 for ospf@ietf.org; Fri, 30 Jun 2006 05:11:28 -0400 Received: from hkg-core-1.cisco.com ([64.104.123.94]) by ind-iport-1.cisco.com with ESMTP; 30 Jun 2006 15:07:21 -0700 X-IronPort-AV: i="4.06,195,1149490800"; d="scan'208"; a="70159779:sNHT2702191416" Received: from xbh-hkg-411.apac.cisco.com (xbh-hkg-411.cisco.com [64.104.123.72]) by hkg-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5U9BC6D009084; Fri, 30 Jun 2006 17:11:12 +0800 (CST) Received: from xfe-hkg-412.apac.cisco.com ([64.104.123.71]) by xbh-hkg-411.apac.cisco.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 Jun 2006 17:11:11 +0800 Received: from [192.168.1.104] ([10.66.254.8]) by xfe-hkg-412.apac.cisco.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 Jun 2006 17:11:09 +0800 Message-ID: <44A4EAAC.9040901@cisco.com> Date: Fri, 30 Jun 2006 02:11:08 -0700 From: Padma Pillay-Esnault User-Agent: Mozilla Thunderbird 0.9 (Macintosh/20041103) X-Accept-Language: en-us, en MIME-Version: 1.0 To: sujay Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart References: <000101c69c1e$1e7f02b0$7107120a@china.huawei.com> In-Reply-To: <000101c69c1e$1e7f02b0$7107120a@china.huawei.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 30 Jun 2006 09:11:10.0092 (UTC) FILETIME=[2093D4C0:01C69C25] X-Spam-Score: -1.3 (-) X-Scan-Signature: 8a961490db2a74c7613bf0201229f176 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org sujay wrote: >Padma, >I do see an inter-op issue for a simple scenario. > >Where the restarting router has assumed the helpers > have a incremented the lease period to (x+y) , whereas >one helper has not, but it could have, provided the behaviour was >defined. > > IMHO, it should not assume that. >Results in a pre-mature exit -gr condition for the sole reason of an >undefined >behavior. > >Please correct me. > >Regds, >Sujay G >My Location; >http://maps.google.com/maps?ll=14.626109,76.959229&spn=4.724852,7.525085 >&t=h&hl=en > > >This e-mail and attachments contain confidential information from >HUAWEI, which is intended only for the person or entity whose address is >listed above. Any use of the information contained herein in any way >(including, but not limited to, total or partial disclosure, >reproduction, or dissemination) by persons other than the intended >recipient's) is prohibited. If you receive this e-mail in error, please >notify the sender by phone or email immediately and delete it! > >-----Original Message----- >From: Padma Pillay-Esnault [mailto:ppe@cisco.com] >Sent: Friday, June 30, 2006 1:19 PM >To: Ashok Chandrashekar Holla >Cc: ospf@ietf.org >Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart > > >Ashok Chandrashekar Holla wrote: > > > >>Padma Pillay-Esnault wrote: >> >> >> >>>Vishwas Manral wrote: >>> >>> >>> >>>>Hi Acee, >>>> >>>>Good point. More than rate limit, I prefer a hardlimit on the total >>>>number of such LSA's that can be received, as well as some bounded >>>>maximum value of time for which hitless restart can go on. >>>> >>>> >>>> >>>Vishwas >>> >>>I am in favor of having a max number of Grace LSA that can be >>>received ( from 0 - meaning no other grace lsa is accepted once a >>>helper received and initiated helping) The maximum value of time a GR >>> >>> > > > >>>can go is anyway going to be 1hr assuming that you do not have DNA >>>lsas and DC configured. >>> >>>Padma >>> >>> >>> >>Actually, I think the 1800 seconds/{configuration defined Max >>Grace-period on Helper} will suffice to avoid any such problems. >>The overall grace-period (sum of initial advertisement and all >>subsequent extensions) should continue to be less than >>1800/{configuration limit of Grace period on Helper}.There is no need >>for a LSA number/rate limit. >>But, I am wondering whether the RFC, in its current wording, is clear >>enough to avoid inter-op issues w.r.t to interpretation of the length >>of grace-period in the case of multiple Grace LSAs.. >>-Ashok >> >> > >I think the RFC is vague enough to allow people to tailor their >implementations and I don't think that >there is an interoperability problem per se. >This is also an internal implemental decision of the helper which >already has a number of possible >configs - when to accept to help for example. > >Padma > > > >>>>Thanks, >>>>Vishwas >>>> >>>>On 6/30/06, Acee Lindem wrote: >>>> >>>> >>>> >>>>>Hi Ashok, >>>>> >>>>>When you accept the new grace LSA as specified in RFC 3623, you'll >>>>>update >>>>>your restart timer to the new value (option 3) as specified above. >>>>> >>>>> >I > > >>>>>guess "updated >>>>>accordingly" could have been more precisely defined. >>>>> >>>>>Hi Don, >>>>> >>>>>When the new grace LSA is originated and the grace interval is >>>>>different, the checksum will be different (irrespective of the >>>>>sequence number) and one >>>>>of the two LSAs (new or previous) will be more recent. Normal RFC >>>>> >>>>> >2328 > > >>>>> processing deals with both cases. However, anytime the contents >>>>>of any LSA >>>>>changes the originator should bump the sequence #. >>>>> >>>>>Implementation Note: I do see the possibility of a DOS attack by a >>>>>restarting router that keeps changing it's restart interval. You >>>>>may want to do some >>>>>rate limit. >>>>> >>>>>Hope this helps, >>>>>Acee >>>>> >>>>> >>>>> >>>>>Ashok Chandrashekar Holla wrote: >>>>> >>>>> >>>>> >>>>>>Don, >>>>>> >>>>>>In my case, the Grace LSA would be a new instance, with an >>>>>>incremented/higher sequence number. This scenario is theoretical, >>>>>> >>>>>> >>>>>but >>>>> >>>>> >>>>>>I am considering handling it for an implementation. >>>>>> >>>>>>Best, >>>>>>Ashok >>>>>> >>>>>> >>>>>>Don Goodspeed wrote: >>>>>> >>>>>> >>>>>> >>>>>>>Ashok, Padma, >>>>>>> >>>>>>>I see a case where a router has restarted in between but did not >>>>>>> >>>>>>> > > > >>>>>>>maintain the timer it had prior to the restart so it sent the >>>>>>>configured value (say 200) again after coming back online. >>>>>>> >>>>>>>I'd be curious to know if the sequence # is the same or has >>>>>>>incremented in Ashok's case (real or theoretical). >>>>>>> >>>>>>>-don >>>>>>> >>>>>>>-----Original Message----- >>>>>>>From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] >>>>>>>Sent: Wednesday, June 28, 2006 9:55 PM >>>>>>>To: Padma Pillay-Esnault >>>>>>>Cc: ospf@ietf.org >>>>>>>Subject: Re: [OSPF] Query regarding grace-period in >>>>>>> >>>>>>> >>>>>Garceful-restart >>>>> >>>>> >>>>>>>Padma Pillay-Esnault wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>Ashok >>>>>>>> >>>>>>>>Ashok Chandrashekar Holla wrote: >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>Or, >>>>>>>>>3. Should it set it to a fresh value of 200s (which means that >>>>>>>>> >>>>>>>>> >>>>>the >>>>> >>>>> >>>>>>>>>effective grace-period is 230s)? >>>>>>>>> >>>>>>>>>Thanks, >>>>>>>>>Ashok >>>>>>>>> >>>>>>>>> >>>>>>>>>Ashok Chandrashekar Holla wrote: >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>>>Group, >>>>>>>>>> >>>>>>>>>>I have a doubt regarding the grace-period interpretation in >>>>>>>>>> >>>>>>>>>> >>>>>RFC 3623. >>>>> >>>>> >>>>>>>>>>If a helper initially received the GR request with >>>>>>>>>>grace-period 100s, and after 30s, receives a new Grace-LSA >>>>>>>>>>with grace-period 200, what should the effective grace-period >>>>>>>>>> >>>>>>>>>> > > > >>>>>>>>>>be? >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>In what type of scenario will it happen ? >>>>>>>> >>>>>>>>Padma >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>Hi Padma, >>>>>>>The above case will occur when the administrator (or OSPF >>>>>>>software) initially chose the grace-period to be small. Later, >>>>>>>realizing that all adjacencies cannot be rebuilt within this >>>>>>>time, requested >>>>>>> >>>>>>> >>>>>for an >>>>> >>>>> >>>>>>>extension of the grace-period. >>>>>>> >>>>>>>In such cases, how will the new instance of Grace LSA be >>>>>>> >>>>>>> >>>>>interpreted >>>>> >>>>> >>>>>>>by the helper? >>>>>>>I feel the RFC defaults implicitly to the 3rd option (listed >>>>>>>above) where the helper resets the Grace-period to the new value >>>>>>> >>>>>>> > > > >>>>>>>and >>>>>>> >>>>>>> >>>>>ignores >>>>> >>>>> >>>>>>>the time period that has already elapsed since the original >>>>>>> >>>>>>> >>>>>request. >>>>> >>>>> >>>>>>>Am I correctly interpreting the RFC? >>>>>>> >>>>>>>Regards, >>>>>>>Ashok >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>>>1. Should the helper set the grace-period to 200s, of which >>>>>>>>>>30s have already elapsed? 2. Should the grace-period be 300s >>>>>>>>>>(previous 100s + extended 200s), of which 30s have already >>>>>>>>>>elapsed? >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>Thanks, >>>>>>>>>>Ashok >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>_______________________________________________ >>>>>>>>>>OSPF mailing list >>>>>>>>>>OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>_______________________________________________ >>>>>>>>>OSPF mailing list >>>>>>>>>OSPF@ietf.org >>>>>>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>_______________________________________________ >>>>>>>OSPF mailing list >>>>>>>OSPF@ietf.org >>>>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>_______________________________________________ >>>>>>OSPF mailing list >>>>>>OSPF@ietf.org >>>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>>> >>>>>> >>>>>> >>>>>_______________________________________________ >>>>>OSPF mailing list >>>>>OSPF@ietf.org >>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>> >>>>> >>>>> >>>>_______________________________________________ >>>>OSPF mailing list >>>>OSPF@ietf.org >>>>https://www1.ietf.org/mailman/listinfo/ospf >>>> >>>> >>>> >>>_______________________________________________ >>>OSPF mailing list >>>OSPF@ietf.org >>>https://www1.ietf.org/mailman/listinfo/ospf >>> >>> >>> > >_______________________________________________ >OSPF mailing list >OSPF@ietf.org >https://www1.ietf.org/mailman/listinfo/ospf > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 11:28:51 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwKvD-0003kW-Et; Fri, 30 Jun 2006 11:28:43 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwKvB-0003kR-Sg for ospf@ietf.org; Fri, 30 Jun 2006 11:28:41 -0400 Received: from rtp-iport-2.cisco.com ([64.102.122.149]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FwKv9-0005jC-KW for ospf@ietf.org; Fri, 30 Jun 2006 11:28:41 -0400 Received: from rtp-core-2.cisco.com ([64.102.124.13]) by rtp-iport-2.cisco.com with ESMTP; 30 Jun 2006 11:28:39 -0400 X-IronPort-AV: i="4.06,197,1149480000"; d="scan'208"; a="91412923:sNHT26066932" Received: from xbh-rtp-201.amer.cisco.com (xbh-rtp-201.cisco.com [64.102.31.12]) by rtp-core-2.cisco.com (8.12.10/8.12.6) with ESMTP id k5UFSdno022497 for ; Fri, 30 Jun 2006 11:28:39 -0400 (EDT) Received: from xfe-rtp-201.amer.cisco.com ([64.102.31.38]) by xbh-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 30 Jun 2006 11:28:39 -0400 Received: from [10.82.240.156] ([10.82.240.156]) by xfe-rtp-201.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 30 Jun 2006 11:28:38 -0400 Message-ID: <44A54326.4050201@cisco.com> Date: Fri, 30 Jun 2006 11:28:38 -0400 From: Acee Lindem User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: OSPF List Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 30 Jun 2006 15:28:38.0923 (UTC) FILETIME=[DC552DB0:01C69C59] X-Spam-Score: 0.0 (/) X-Scan-Signature: 7aefe408d50e9c7c47615841cb314bed Subject: [OSPF] OSPF WG Meeting Agenda X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org The agenda for Montreal has been posted. Let me know if I've missed anything. http://www3.ietf.org/proceedings/06jul/agenda/ospf.txt Thanks, Acee _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 12:24:10 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwLmq-0000TP-0l; Fri, 30 Jun 2006 12:24:08 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwLmo-0000TK-8Q for ospf@ietf.org; Fri, 30 Jun 2006 12:24:06 -0400 Received: from sj-iport-6.cisco.com ([171.71.176.117]) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FwLml-0003Ao-BZ for ospf@ietf.org; Fri, 30 Jun 2006 12:24:06 -0400 Received: from sj-dkim-4.cisco.com ([171.71.179.196]) by sj-iport-6.cisco.com with ESMTP; 30 Jun 2006 09:24:03 -0700 Received: from sj-core-1.cisco.com (sj-core-1.cisco.com [171.71.177.237]) by sj-dkim-4.cisco.com (8.12.11/8.12.11) with ESMTP id k5UGO2DV007067; Fri, 30 Jun 2006 09:24:02 -0700 Received: from xbh-sjc-211.amer.cisco.com (xbh-sjc-211.cisco.com [171.70.151.144]) by sj-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id k5UGNv9s006187; Fri, 30 Jun 2006 09:23:57 -0700 (PDT) Received: from xmb-sjc-21d.amer.cisco.com ([171.70.151.140]) by xbh-sjc-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 30 Jun 2006 09:23:57 -0700 Received: from 10.21.80.12 ([10.21.80.12]) by xmb-sjc-21d.amer.cisco.com ([171.70.151.140]) with Microsoft Exchange Server HTTP-DAV ; Fri, 30 Jun 2006 16:23:57 +0000 User-Agent: Microsoft-Entourage/11.2.4.060510 Date: Fri, 30 Jun 2006 09:23:44 -0700 Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart From: Hasmit Grover To: Padma Pillay-Esnault , sujay Message-ID: Thread-Topic: [OSPF] Query regarding grace-period in Garceful-restart Thread-Index: AcacYY5PzPQmKghUEdutFQAWy5Bh7A== In-Reply-To: <44A4EAAC.9040901@cisco.com> Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit X-OriginalArrivalTime: 30 Jun 2006 16:23:57.0681 (UTC) FILETIME=[96777610:01C69C61] DKIM-Signature: a=rsa-sha1; q=dns; l=10689; t=1151684642; x=1152548642; c=relaxed/simple; s=sjdkim4001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=hasmit@cisco.com; z=From:Hasmit=20Grover=20 |Subject:Re=3A=20[OSPF]=20Query=20regarding=20grace-period=20in=20Garceful-restar t; X=v=3Dcisco.com=3B=20h=3DNSyN5V00x09F02bWWj9IvQMrtVc=3D; b=BmP8Gl+Wmzx82M48U+aVj02eG3s1yBIEErdeW1fHZ1k45m66JHjiidRWvjmqA6+7isH5RAOv WXXdo4tv/JqPWn62w3TUykiu/fu5DbmJkg3K0m0HVWL8Zbx2xTyQQ1ik; Authentication-Results: sj-dkim-4.cisco.com; header.From=hasmit@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 1.1 (+) X-Scan-Signature: 715d0e6950aaebd45af78ef9318d0186 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org On 6/30/06 2:11 AM, "Padma Pillay-Esnault" wrote: > sujay wrote: > >> Padma, >> I do see an inter-op issue for a simple scenario. >> >> Where the restarting router has assumed the helpers >> have a incremented the lease period to (x+y) , whereas >> one helper has not, but it could have, provided the behaviour was >> defined. >> >> > IMHO, it should not assume that. Well the reason for restarting router to send two grace LSAs would be to inform its neighbors to increase its restart interval. If such use of grace LSAs is not recommended it should be clearly specified otherwise the results in such a case will become implementation dependent. - Hasmit > >> Results in a pre-mature exit -gr condition for the sole reason of an >> undefined >> behavior. >> >> Please correct me. >> >> Regds, >> Sujay G >> My Location; >> http://maps.google.com/maps?ll=14.626109,76.959229&spn=4.724852,7.525085 >> &t=h&hl=en >> >> >> This e-mail and attachments contain confidential information from >> HUAWEI, which is intended only for the person or entity whose address is >> listed above. Any use of the information contained herein in any way >> (including, but not limited to, total or partial disclosure, >> reproduction, or dissemination) by persons other than the intended >> recipient's) is prohibited. If you receive this e-mail in error, please >> notify the sender by phone or email immediately and delete it! >> >> -----Original Message----- >> From: Padma Pillay-Esnault [mailto:ppe@cisco.com] >> Sent: Friday, June 30, 2006 1:19 PM >> To: Ashok Chandrashekar Holla >> Cc: ospf@ietf.org >> Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart >> >> >> Ashok Chandrashekar Holla wrote: >> >> >> >>> Padma Pillay-Esnault wrote: >>> >>> >>> >>>> Vishwas Manral wrote: >>>> >>>> >>>> >>>>> Hi Acee, >>>>> >>>>> Good point. More than rate limit, I prefer a hardlimit on the total >>>>> number of such LSA's that can be received, as well as some bounded >>>>> maximum value of time for which hitless restart can go on. >>>>> >>>>> >>>>> >>>> Vishwas >>>> >>>> I am in favor of having a max number of Grace LSA that can be >>>> received ( from 0 - meaning no other grace lsa is accepted once a >>>> helper received and initiated helping) The maximum value of time a GR >>>> >>>> >> >> >> >>>> can go is anyway going to be 1hr assuming that you do not have DNA >>>> lsas and DC configured. >>>> >>>> Padma >>>> >>>> >>>> >>> Actually, I think the 1800 seconds/{configuration defined Max >>> Grace-period on Helper} will suffice to avoid any such problems. >>> The overall grace-period (sum of initial advertisement and all >>> subsequent extensions) should continue to be less than >>> 1800/{configuration limit of Grace period on Helper}.There is no need >>> for a LSA number/rate limit. >>> But, I am wondering whether the RFC, in its current wording, is clear >>> enough to avoid inter-op issues w.r.t to interpretation of the length >>> of grace-period in the case of multiple Grace LSAs.. >>> -Ashok >>> >>> >> >> I think the RFC is vague enough to allow people to tailor their >> implementations and I don't think that >> there is an interoperability problem per se. >> This is also an internal implemental decision of the helper which >> already has a number of possible >> configs - when to accept to help for example. >> >> Padma >> >> >> >>>>> Thanks, >>>>> Vishwas >>>>> >>>>> On 6/30/06, Acee Lindem wrote: >>>>> >>>>> >>>>> >>>>>> Hi Ashok, >>>>>> >>>>>> When you accept the new grace LSA as specified in RFC 3623, you'll >>>>>> update >>>>>> your restart timer to the new value (option 3) as specified above. >>>>>> >>>>>> >> I >> >> >>>>>> guess "updated >>>>>> accordingly" could have been more precisely defined. >>>>>> >>>>>> Hi Don, >>>>>> >>>>>> When the new grace LSA is originated and the grace interval is >>>>>> different, the checksum will be different (irrespective of the >>>>>> sequence number) and one >>>>>> of the two LSAs (new or previous) will be more recent. Normal RFC >>>>>> >>>>>> >> 2328 >> >> >>>>>> processing deals with both cases. However, anytime the contents >>>>>> of any LSA >>>>>> changes the originator should bump the sequence #. >>>>>> >>>>>> Implementation Note: I do see the possibility of a DOS attack by a >>>>>> restarting router that keeps changing it's restart interval. You >>>>>> may want to do some >>>>>> rate limit. >>>>>> >>>>>> Hope this helps, >>>>>> Acee >>>>>> >>>>>> >>>>>> >>>>>> Ashok Chandrashekar Holla wrote: >>>>>> >>>>>> >>>>>> >>>>>>> Don, >>>>>>> >>>>>>> In my case, the Grace LSA would be a new instance, with an >>>>>>> incremented/higher sequence number. This scenario is theoretical, >>>>>>> >>>>>>> >>>>>> but >>>>>> >>>>>> >>>>>>> I am considering handling it for an implementation. >>>>>>> >>>>>>> Best, >>>>>>> Ashok >>>>>>> >>>>>>> >>>>>>> Don Goodspeed wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>>> Ashok, Padma, >>>>>>>> >>>>>>>> I see a case where a router has restarted in between but did not >>>>>>>> >>>>>>>> >> >> >> >>>>>>>> maintain the timer it had prior to the restart so it sent the >>>>>>>> configured value (say 200) again after coming back online. >>>>>>>> >>>>>>>> I'd be curious to know if the sequence # is the same or has >>>>>>>> incremented in Ashok's case (real or theoretical). >>>>>>>> >>>>>>>> -don >>>>>>>> >>>>>>>> -----Original Message----- >>>>>>>> From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] >>>>>>>> Sent: Wednesday, June 28, 2006 9:55 PM >>>>>>>> To: Padma Pillay-Esnault >>>>>>>> Cc: ospf@ietf.org >>>>>>>> Subject: Re: [OSPF] Query regarding grace-period in >>>>>>>> >>>>>>>> >>>>>> Garceful-restart >>>>>> >>>>>> >>>>>>>> Padma Pillay-Esnault wrote: >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>> Ashok >>>>>>>>> >>>>>>>>> Ashok Chandrashekar Holla wrote: >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>>> Or, >>>>>>>>>> 3. Should it set it to a fresh value of 200s (which means that >>>>>>>>>> >>>>>>>>>> >>>>>> the >>>>>> >>>>>> >>>>>>>>>> effective grace-period is 230s)? >>>>>>>>>> >>>>>>>>>> Thanks, >>>>>>>>>> Ashok >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> Ashok Chandrashekar Holla wrote: >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>> Group, >>>>>>>>>>> >>>>>>>>>>> I have a doubt regarding the grace-period interpretation in >>>>>>>>>>> >>>>>>>>>>> >>>>>> RFC 3623. >>>>>> >>>>>> >>>>>>>>>>> If a helper initially received the GR request with >>>>>>>>>>> grace-period 100s, and after 30s, receives a new Grace-LSA >>>>>>>>>>> with grace-period 200, what should the effective grace-period >>>>>>>>>>> >>>>>>>>>>> >> >> >> >>>>>>>>>>> be? >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>> In what type of scenario will it happen ? >>>>>>>>> >>>>>>>>> Padma >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> Hi Padma, >>>>>>>> The above case will occur when the administrator (or OSPF >>>>>>>> software) initially chose the grace-period to be small. Later, >>>>>>>> realizing that all adjacencies cannot be rebuilt within this >>>>>>>> time, requested >>>>>>>> >>>>>>>> >>>>>> for an >>>>>> >>>>>> >>>>>>>> extension of the grace-period. >>>>>>>> >>>>>>>> In such cases, how will the new instance of Grace LSA be >>>>>>>> >>>>>>>> >>>>>> interpreted >>>>>> >>>>>> >>>>>>>> by the helper? >>>>>>>> I feel the RFC defaults implicitly to the 3rd option (listed >>>>>>>> above) where the helper resets the Grace-period to the new value >>>>>>>> >>>>>>>> >> >> >> >>>>>>>> and >>>>>>>> >>>>>>>> >>>>>> ignores >>>>>> >>>>>> >>>>>>>> the time period that has already elapsed since the original >>>>>>>> >>>>>>>> >>>>>> request. >>>>>> >>>>>> >>>>>>>> Am I correctly interpreting the RFC? >>>>>>>> >>>>>>>> Regards, >>>>>>>> Ashok >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>>> 1. Should the helper set the grace-period to 200s, of which >>>>>>>>>>> 30s have already elapsed? 2. Should the grace-period be 300s >>>>>>>>>>> (previous 100s + extended 200s), of which 30s have already >>>>>>>>>>> elapsed? >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Thanks, >>>>>>>>>>> Ashok >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> _______________________________________________ >>>>>>>>>>> OSPF mailing list >>>>>>>>>>> OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> OSPF mailing list >>>>>>>>>> OSPF@ietf.org >>>>>>>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> OSPF mailing list >>>>>>>> OSPF@ietf.org >>>>>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> _______________________________________________ >>>>>>> OSPF mailing list >>>>>>> OSPF@ietf.org >>>>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>>>> >>>>>>> >>>>>>> >>>>>> _______________________________________________ >>>>>> OSPF mailing list >>>>>> OSPF@ietf.org >>>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>>> >>>>>> >>>>>> >>>>> _______________________________________________ >>>>> OSPF mailing list >>>>> OSPF@ietf.org >>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>> >>>>> >>>>> >>>> _______________________________________________ >>>> OSPF mailing list >>>> OSPF@ietf.org >>>> https://www1.ietf.org/mailman/listinfo/ospf >>>> >>>> >>>> >> >> _______________________________________________ >> OSPF mailing list >> OSPF@ietf.org >> https://www1.ietf.org/mailman/listinfo/ospf >> >> >> > > _______________________________________________ > OSPF mailing list > OSPF@ietf.org > https://www1.ietf.org/mailman/listinfo/ospf _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 13:31:13 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwMpd-00006b-MR; 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Fri, 30 Jun 2006 10:30:57 -0700 Received: from [192.168.1.104] ([10.21.100.30]) by xfe-sjc-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 30 Jun 2006 10:30:56 -0700 Message-ID: <44A55FD3.7080305@cisco.com> Date: Fri, 30 Jun 2006 10:30:59 -0700 From: Padma Pillay-Esnault User-Agent: Mozilla Thunderbird 0.9 (Macintosh/20041103) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Hasmit Grover Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 30 Jun 2006 17:30:56.0687 (UTC) FILETIME=[F1FB1BF0:01C69C6A] DKIM-Signature: a=rsa-sha1; q=dns; l=12803; t=1151688660; x=1152552660; c=relaxed/simple; s=sjdkim2001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=ppe@cisco.com; z=From:Padma=20Pillay-Esnault=20 |Subject:Re=3A=20[OSPF]=20Query=20regarding=20grace-period=20in=20Garceful-restar t; X=v=3Dcisco.com=3B=20h=3DHSog+ED30EE7NyVrGmiG5wScOow=3D; b=Ta2BQXlrUkroOdv70uyRnB5oQZs5g+LHSSkMg53oJcFQFbSoXkOEeKJagHf2SA6CAecs7V57 8h+ZKvoS7w7ektCI7WY7uxnx9+u3rSGShZlqm5p10aPFvTu28PmdkT0q; Authentication-Results: sj-dkim-2.cisco.com; header.From=ppe@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 1.1 (+) X-Scan-Signature: 3da7e5d5ca82d58872786934e4963616 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org Hasmit Grover wrote: > >On 6/30/06 2:11 AM, "Padma Pillay-Esnault" wrote: > > > >>sujay wrote: >> >> >> >>>Padma, >>>I do see an inter-op issue for a simple scenario. >>> >>>Where the restarting router has assumed the helpers >>>have a incremented the lease period to (x+y) , whereas >>>one helper has not, but it could have, provided the behaviour was >>>defined. >>> >>> >>> >>> >>IMHO, it should not assume that. >> >> > >Well the reason for restarting router to send two grace LSAs would be to >inform its neighbors to increase its restart interval. If such use of grace >LSAs is not recommended it should be clearly specified otherwise the results >in such a case will become implementation dependent. > >- Hasmit > > > Hi Hasmit I actually don't buy into the argument that the implementation needs more time - if you want to be safe configure the maximum time allowed and any good implementation should get out of GR asap on success. This looks more like an operational/usage misconfig to me. Padma >>>Results in a pre-mature exit -gr condition for the sole reason of an >>>undefined >>>behavior. >>> >>>Please correct me. >>> >>>Regds, >>>Sujay G >>>My Location; >>>http://maps.google.com/maps?ll=14.626109,76.959229&spn=4.724852,7.525085 >>>&t=h&hl=en >>> >>> >>>This e-mail and attachments contain confidential information from >>>HUAWEI, which is intended only for the person or entity whose address is >>>listed above. Any use of the information contained herein in any way >>>(including, but not limited to, total or partial disclosure, >>>reproduction, or dissemination) by persons other than the intended >>>recipient's) is prohibited. If you receive this e-mail in error, please >>>notify the sender by phone or email immediately and delete it! >>> >>>-----Original Message----- >>>From: Padma Pillay-Esnault [mailto:ppe@cisco.com] >>>Sent: Friday, June 30, 2006 1:19 PM >>>To: Ashok Chandrashekar Holla >>>Cc: ospf@ietf.org >>>Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart >>> >>> >>>Ashok Chandrashekar Holla wrote: >>> >>> >>> >>> >>> >>>>Padma Pillay-Esnault wrote: >>>> >>>> >>>> >>>> >>>> >>>>>Vishwas Manral wrote: >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>Hi Acee, >>>>>> >>>>>>Good point. More than rate limit, I prefer a hardlimit on the total >>>>>>number of such LSA's that can be received, as well as some bounded >>>>>>maximum value of time for which hitless restart can go on. >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>Vishwas >>>>> >>>>>I am in favor of having a max number of Grace LSA that can be >>>>>received ( from 0 - meaning no other grace lsa is accepted once a >>>>>helper received and initiated helping) The maximum value of time a GR >>>>> >>>>> >>>>> >>>>> >>> >>> >>> >>> >>>>>can go is anyway going to be 1hr assuming that you do not have DNA >>>>>lsas and DC configured. >>>>> >>>>>Padma >>>>> >>>>> >>>>> >>>>> >>>>> >>>>Actually, I think the 1800 seconds/{configuration defined Max >>>>Grace-period on Helper} will suffice to avoid any such problems. >>>>The overall grace-period (sum of initial advertisement and all >>>>subsequent extensions) should continue to be less than >>>>1800/{configuration limit of Grace period on Helper}.There is no need >>>>for a LSA number/rate limit. >>>>But, I am wondering whether the RFC, in its current wording, is clear >>>>enough to avoid inter-op issues w.r.t to interpretation of the length >>>>of grace-period in the case of multiple Grace LSAs.. >>>>-Ashok >>>> >>>> >>>> >>>> >>>I think the RFC is vague enough to allow people to tailor their >>>implementations and I don't think that >>>there is an interoperability problem per se. >>>This is also an internal implemental decision of the helper which >>>already has a number of possible >>>configs - when to accept to help for example. >>> >>>Padma >>> >>> >>> >>> >>> >>>>>>Thanks, >>>>>>Vishwas >>>>>> >>>>>>On 6/30/06, Acee Lindem wrote: >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>>Hi Ashok, >>>>>>> >>>>>>>When you accept the new grace LSA as specified in RFC 3623, you'll >>>>>>>update >>>>>>>your restart timer to the new value (option 3) as specified above. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>I >>> >>> >>> >>> >>>>>>>guess "updated >>>>>>>accordingly" could have been more precisely defined. >>>>>>> >>>>>>>Hi Don, >>>>>>> >>>>>>>When the new grace LSA is originated and the grace interval is >>>>>>>different, the checksum will be different (irrespective of the >>>>>>>sequence number) and one >>>>>>>of the two LSAs (new or previous) will be more recent. Normal RFC >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>2328 >>> >>> >>> >>> >>>>>>>processing deals with both cases. However, anytime the contents >>>>>>>of any LSA >>>>>>>changes the originator should bump the sequence #. >>>>>>> >>>>>>>Implementation Note: I do see the possibility of a DOS attack by a >>>>>>>restarting router that keeps changing it's restart interval. You >>>>>>>may want to do some >>>>>>>rate limit. >>>>>>> >>>>>>>Hope this helps, >>>>>>>Acee >>>>>>> >>>>>>> >>>>>>> >>>>>>>Ashok Chandrashekar Holla wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>Don, >>>>>>>> >>>>>>>>In my case, the Grace LSA would be a new instance, with an >>>>>>>>incremented/higher sequence number. This scenario is theoretical, >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>but >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>I am considering handling it for an implementation. >>>>>>>> >>>>>>>>Best, >>>>>>>>Ashok >>>>>>>> >>>>>>>> >>>>>>>>Don Goodspeed wrote: >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>Ashok, Padma, >>>>>>>>> >>>>>>>>>I see a case where a router has restarted in between but did not >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>> >>> >>> >>> >>>>>>>>>maintain the timer it had prior to the restart so it sent the >>>>>>>>>configured value (say 200) again after coming back online. >>>>>>>>> >>>>>>>>>I'd be curious to know if the sequence # is the same or has >>>>>>>>>incremented in Ashok's case (real or theoretical). >>>>>>>>> >>>>>>>>>-don >>>>>>>>> >>>>>>>>>-----Original Message----- >>>>>>>>>From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] >>>>>>>>>Sent: Wednesday, June 28, 2006 9:55 PM >>>>>>>>>To: Padma Pillay-Esnault >>>>>>>>>Cc: ospf@ietf.org >>>>>>>>>Subject: Re: [OSPF] Query regarding grace-period in >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>Garceful-restart >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>>Padma Pillay-Esnault wrote: >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>>>Ashok >>>>>>>>>> >>>>>>>>>>Ashok Chandrashekar Holla wrote: >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>>Or, >>>>>>>>>>>3. Should it set it to a fresh value of 200s (which means that >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>the >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>>>>effective grace-period is 230s)? >>>>>>>>>>> >>>>>>>>>>>Thanks, >>>>>>>>>>>Ashok >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>>Ashok Chandrashekar Holla wrote: >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>>>Group, >>>>>>>>>>>> >>>>>>>>>>>>I have a doubt regarding the grace-period interpretation in >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>RFC 3623. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>>>>>If a helper initially received the GR request with >>>>>>>>>>>>grace-period 100s, and after 30s, receives a new Grace-LSA >>>>>>>>>>>>with grace-period 200, what should the effective grace-period >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>> >>> >>> >>> >>>>>>>>>>>>be? >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>In what type of scenario will it happen ? >>>>>>>>>> >>>>>>>>>>Padma >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>Hi Padma, >>>>>>>>>The above case will occur when the administrator (or OSPF >>>>>>>>>software) initially chose the grace-period to be small. Later, >>>>>>>>>realizing that all adjacencies cannot be rebuilt within this >>>>>>>>>time, requested >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>for an >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>>extension of the grace-period. >>>>>>>>> >>>>>>>>>In such cases, how will the new instance of Grace LSA be >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>interpreted >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>>by the helper? >>>>>>>>>I feel the RFC defaults implicitly to the 3rd option (listed >>>>>>>>>above) where the helper resets the Grace-period to the new value >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>> >>> >>> >>> >>>>>>>>>and >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>ignores >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>>the time period that has already elapsed since the original >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>request. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>>Am I correctly interpreting the RFC? >>>>>>>>> >>>>>>>>>Regards, >>>>>>>>>Ashok >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>>>>>1. Should the helper set the grace-period to 200s, of which >>>>>>>>>>>>30s have already elapsed? 2. Should the grace-period be 300s >>>>>>>>>>>>(previous 100s + extended 200s), of which 30s have already >>>>>>>>>>>>elapsed? >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>>Thanks, >>>>>>>>>>>>Ashok >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>>_______________________________________________ >>>>>>>>>>>>OSPF mailing list >>>>>>>>>>>>OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>_______________________________________________ >>>>>>>>>>>OSPF mailing list >>>>>>>>>>>OSPF@ietf.org >>>>>>>>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>_______________________________________________ >>>>>>>>>OSPF mailing list >>>>>>>>>OSPF@ietf.org >>>>>>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>_______________________________________________ >>>>>>>>OSPF mailing list >>>>>>>>OSPF@ietf.org >>>>>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>_______________________________________________ >>>>>>>OSPF mailing list >>>>>>>OSPF@ietf.org >>>>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>_______________________________________________ >>>>>>OSPF mailing list >>>>>>OSPF@ietf.org >>>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>_______________________________________________ >>>>>OSPF mailing list >>>>>OSPF@ietf.org >>>>>https://www1.ietf.org/mailman/listinfo/ospf >>>>> >>>>> >>>>> >>>>> >>>>> >>>_______________________________________________ >>>OSPF mailing list >>>OSPF@ietf.org >>>https://www1.ietf.org/mailman/listinfo/ospf >>> >>> >>> >>> >>> >>_______________________________________________ >>OSPF mailing list >>OSPF@ietf.org >>https://www1.ietf.org/mailman/listinfo/ospf >> >> > > > > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf From ospf-bounces@ietf.org Fri Jun 30 13:39:48 2006 Received: from [127.0.0.1] (helo=stiedprmman1.va.neustar.com) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwMy2-0003vB-RN; Fri, 30 Jun 2006 13:39:47 -0400 Received: from [10.91.34.44] (helo=ietf-mx.ietf.org) by megatron.ietf.org with esmtp (Exim 4.43) id 1FwMy1-0003tZ-1p for ospf@ietf.org; Fri, 30 Jun 2006 13:39:45 -0400 Received: from sj-iport-2-in.cisco.com ([171.71.176.71] helo=sj-iport-2.cisco.com) by ietf-mx.ietf.org with esmtp (Exim 4.43) id 1FwMy0-0000EL-AW for ospf@ietf.org; Fri, 30 Jun 2006 13:39:45 -0400 Received: from sj-dkim-3.cisco.com ([171.71.179.195]) by sj-iport-2.cisco.com with ESMTP; 30 Jun 2006 10:39:43 -0700 X-IronPort-AV: i="4.06,197,1149490800"; d="scan'208"; a="326813100:sNHT37791224" Received: from sj-core-5.cisco.com (sj-core-5.cisco.com [171.71.177.238]) by sj-dkim-3.cisco.com (8.12.11/8.12.11) with ESMTP id k5UHdh01026026; Fri, 30 Jun 2006 10:39:43 -0700 Received: from xbh-sjc-211.amer.cisco.com (xbh-sjc-211.cisco.com [171.70.151.144]) by sj-core-5.cisco.com (8.12.10/8.12.6) with ESMTP id k5UHdhCU027538; Fri, 30 Jun 2006 10:39:43 -0700 (PDT) Received: from xmb-sjc-21d.amer.cisco.com ([171.70.151.140]) by xbh-sjc-211.amer.cisco.com with Microsoft SMTPSVC(6.0.3790.211); Fri, 30 Jun 2006 10:39:43 -0700 Received: from 171.71.55.64 ([171.71.55.64]) by xmb-sjc-21d.amer.cisco.com ([171.70.151.140]) with Microsoft Exchange Server HTTP-DAV ; Fri, 30 Jun 2006 17:39:43 +0000 User-Agent: Microsoft-Entourage/11.2.4.060510 Date: Fri, 30 Jun 2006 10:39:30 -0700 Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart From: Hasmit Grover To: Padma Pillay-Esnault Message-ID: Thread-Topic: [OSPF] Query regarding grace-period in Garceful-restart Thread-Index: AcacbCPwYpGoJghfEdutFQAWy5Bh7A== In-Reply-To: <44A55FD3.7080305@cisco.com> Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit X-OriginalArrivalTime: 30 Jun 2006 17:39:43.0307 (UTC) FILETIME=[2BDEF1B0:01C69C6C] DKIM-Signature: a=rsa-sha1; q=dns; l=13711; t=1151689183; x=1152553183; c=relaxed/simple; s=sjdkim3001; h=Content-Type:From:Subject:Content-Transfer-Encoding:MIME-Version; d=cisco.com; i=hasmit@cisco.com; z=From:Hasmit=20Grover=20 |Subject:Re=3A=20[OSPF]=20Query=20regarding=20grace-period=20in=20Garceful-restar t; X=v=3Dcisco.com=3B=20h=3DNSyN5V00x09F02bWWj9IvQMrtVc=3D; b=em9tbDz6P4FhbLe/PdFAgludWZUqYyL95XQybYuZxWKQeUlYQ22UW4L7AqzJ8nJlbq0qHz5F sJvEJNqLgMYY99RYbKiH/fCqZA4bxxy4si3MnYL9qMMB/aUcH2Tzq/Po; Authentication-Results: sj-dkim-3.cisco.com; header.From=hasmit@cisco.com; dkim=pass ( sig from cisco.com verified; ); X-Spam-Score: 2.7 (++) X-Scan-Signature: 0d6b5666eba887052ef5e87a9de0d3b8 Cc: ospf@ietf.org X-BeenThere: ospf@ietf.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: The Official IETF OSPG WG Mailing List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ospf-bounces@ietf.org On 6/30/06 10:30 AM, "Padma Pillay-Esnault" wrote: > Hasmit Grover wrote: > >> >> On 6/30/06 2:11 AM, "Padma Pillay-Esnault" wrote: >> >> >> >>> sujay wrote: >>> >>> >>> >>>> Padma, >>>> I do see an inter-op issue for a simple scenario. >>>> >>>> Where the restarting router has assumed the helpers >>>> have a incremented the lease period to (x+y) , whereas >>>> one helper has not, but it could have, provided the behaviour was >>>> defined. >>>> >>>> >>>> >>>> >>> IMHO, it should not assume that. >>> >>> >> >> Well the reason for restarting router to send two grace LSAs would be to >> inform its neighbors to increase its restart interval. If such use of grace >> LSAs is not recommended it should be clearly specified otherwise the results >> in such a case will become implementation dependent. >> >> - Hasmit >> >> >> > Hi Hasmit > > I actually don't buy into the argument that the implementation needs > more time - if you want to be > safe configure the maximum time allowed and any good implementation > should get out of GR asap > on success. This looks more like an operational/usage misconfig to me. > I agree that we should not extend the grace interval on receiving multiple grace LSAs. I wanted to make sure that this fact is documented so that all implementations conform to this behavior and we don't have any future interop issues. - Hasmit > Padma > >>>> Results in a pre-mature exit -gr condition for the sole reason of an >>>> undefined >>>> behavior. >>>> >>>> Please correct me. >>>> >>>> Regds, >>>> Sujay G >>>> My Location; >>>> http://maps.google.com/maps?ll=14.626109,76.959229&spn=4.724852,7.525085 >>>> &t=h&hl=en >>>> >>>> >>>> This e-mail and attachments contain confidential information from >>>> HUAWEI, which is intended only for the person or entity whose address is >>>> listed above. Any use of the information contained herein in any way >>>> (including, but not limited to, total or partial disclosure, >>>> reproduction, or dissemination) by persons other than the intended >>>> recipient's) is prohibited. If you receive this e-mail in error, please >>>> notify the sender by phone or email immediately and delete it! >>>> >>>> -----Original Message----- >>>> From: Padma Pillay-Esnault [mailto:ppe@cisco.com] >>>> Sent: Friday, June 30, 2006 1:19 PM >>>> To: Ashok Chandrashekar Holla >>>> Cc: ospf@ietf.org >>>> Subject: Re: [OSPF] Query regarding grace-period in Garceful-restart >>>> >>>> >>>> Ashok Chandrashekar Holla wrote: >>>> >>>> >>>> >>>> >>>> >>>>> Padma Pillay-Esnault wrote: >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> Vishwas Manral wrote: >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> Hi Acee, >>>>>>> >>>>>>> Good point. More than rate limit, I prefer a hardlimit on the total >>>>>>> number of such LSA's that can be received, as well as some bounded >>>>>>> maximum value of time for which hitless restart can go on. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> Vishwas >>>>>> >>>>>> I am in favor of having a max number of Grace LSA that can be >>>>>> received ( from 0 - meaning no other grace lsa is accepted once a >>>>>> helper received and initiated helping) The maximum value of time a GR >>>>>> >>>>>> >>>>>> >>>>>> >>>> >>>> >>>> >>>> >>>>>> can go is anyway going to be 1hr assuming that you do not have DNA >>>>>> lsas and DC configured. >>>>>> >>>>>> Padma >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> Actually, I think the 1800 seconds/{configuration defined Max >>>>> Grace-period on Helper} will suffice to avoid any such problems. >>>>> The overall grace-period (sum of initial advertisement and all >>>>> subsequent extensions) should continue to be less than >>>>> 1800/{configuration limit of Grace period on Helper}.There is no need >>>>> for a LSA number/rate limit. >>>>> But, I am wondering whether the RFC, in its current wording, is clear >>>>> enough to avoid inter-op issues w.r.t to interpretation of the length >>>>> of grace-period in the case of multiple Grace LSAs.. >>>>> -Ashok >>>>> >>>>> >>>>> >>>>> >>>> I think the RFC is vague enough to allow people to tailor their >>>> implementations and I don't think that >>>> there is an interoperability problem per se. >>>> This is also an internal implemental decision of the helper which >>>> already has a number of possible >>>> configs - when to accept to help for example. >>>> >>>> Padma >>>> >>>> >>>> >>>> >>>> >>>>>>> Thanks, >>>>>>> Vishwas >>>>>>> >>>>>>> On 6/30/06, Acee Lindem wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>> Hi Ashok, >>>>>>>> >>>>>>>> When you accept the new grace LSA as specified in RFC 3623, you'll >>>>>>>> update >>>>>>>> your restart timer to the new value (option 3) as specified above. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>> I >>>> >>>> >>>> >>>> >>>>>>>> guess "updated >>>>>>>> accordingly" could have been more precisely defined. >>>>>>>> >>>>>>>> Hi Don, >>>>>>>> >>>>>>>> When the new grace LSA is originated and the grace interval is >>>>>>>> different, the checksum will be different (irrespective of the >>>>>>>> sequence number) and one >>>>>>>> of the two LSAs (new or previous) will be more recent. Normal RFC >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>> 2328 >>>> >>>> >>>> >>>> >>>>>>>> processing deals with both cases. However, anytime the contents >>>>>>>> of any LSA >>>>>>>> changes the originator should bump the sequence #. >>>>>>>> >>>>>>>> Implementation Note: I do see the possibility of a DOS attack by a >>>>>>>> restarting router that keeps changing it's restart interval. You >>>>>>>> may want to do some >>>>>>>> rate limit. >>>>>>>> >>>>>>>> Hope this helps, >>>>>>>> Acee >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> Ashok Chandrashekar Holla wrote: >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>> Don, >>>>>>>>> >>>>>>>>> In my case, the Grace LSA would be a new instance, with an >>>>>>>>> incremented/higher sequence number. This scenario is theoretical, >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> but >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>> I am considering handling it for an implementation. >>>>>>>>> >>>>>>>>> Best, >>>>>>>>> Ashok >>>>>>>>> >>>>>>>>> >>>>>>>>> Don Goodspeed wrote: >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>>> Ashok, Padma, >>>>>>>>>> >>>>>>>>>> I see a case where a router has restarted in between but did not >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>> >>>> >>>> >>>> >>>>>>>>>> maintain the timer it had prior to the restart so it sent the >>>>>>>>>> configured value (say 200) again after coming back online. >>>>>>>>>> >>>>>>>>>> I'd be curious to know if the sequence # is the same or has >>>>>>>>>> incremented in Ashok's case (real or theoretical). >>>>>>>>>> >>>>>>>>>> -don >>>>>>>>>> >>>>>>>>>> -----Original Message----- >>>>>>>>>> From: Ashok Chandrashekar Holla [mailto:ashok_ch@huawei.com] >>>>>>>>>> Sent: Wednesday, June 28, 2006 9:55 PM >>>>>>>>>> To: Padma Pillay-Esnault >>>>>>>>>> Cc: ospf@ietf.org >>>>>>>>>> Subject: Re: [OSPF] Query regarding grace-period in >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>> Garceful-restart >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>> Padma Pillay-Esnault wrote: >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>> Ashok >>>>>>>>>>> >>>>>>>>>>> Ashok Chandrashekar Holla wrote: >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>>> Or, >>>>>>>>>>>> 3. Should it set it to a fresh value of 200s (which means that >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>> the >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>>>> effective grace-period is 230s)? >>>>>>>>>>>> >>>>>>>>>>>> Thanks, >>>>>>>>>>>> Ashok >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> Ashok Chandrashekar Holla wrote: >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> Group, >>>>>>>>>>>> >>>>>>>>>>>> I have a doubt regarding the grace-period interpretation in >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>> RFC 3623. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>>>> If a helper initially received the GR request with >>>>>>>>>>>> grace-period 100s, and after 30s, receives a new Grace-LSA >>>>>>>>>>>> with grace-period 200, what should the effective grace-period >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>> >>>> >>>> >>>> >>>>>>>>>>>> be? >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>> In what type of scenario will it happen ? >>>>>>>>>>> >>>>>>>>>>> Padma >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>> Hi Padma, >>>>>>>>>> The above case will occur when the administrator (or OSPF >>>>>>>>>> software) initially chose the grace-period to be small. Later, >>>>>>>>>> realizing that all adjacencies cannot be rebuilt within this >>>>>>>>>> time, requested >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>> for an >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>> extension of the grace-period. >>>>>>>>>> >>>>>>>>>> In such cases, how will the new instance of Grace LSA be >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>> interpreted >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>> by the helper? >>>>>>>>>> I feel the RFC defaults implicitly to the 3rd option (listed >>>>>>>>>> above) where the helper resets the Grace-period to the new value >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>> >>>> >>>> >>>> >>>>>>>>>> and >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>> ignores >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>> the time period that has already elapsed since the original >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>> request. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>> Am I correctly interpreting the RFC? >>>>>>>>>> >>>>>>>>>> Regards, >>>>>>>>>> Ashok >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>>> 1. Should the helper set the grace-period to 200s, of which >>>>>>>>>>>> 30s have already elapsed? 2. Should the grace-period be 300s >>>>>>>>>>>> (previous 100s + extended 200s), of which 30s have already >>>>>>>>>>>> elapsed? >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> Thanks, >>>>>>>>>>>> Ashok >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>> OSPF mailing list >>>>>>>>>>>> OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> _______________________________________________ >>>>>>>>>>>> OSPF mailing list >>>>>>>>>>>> OSPF@ietf.org >>>>>>>>>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> OSPF mailing list >>>>>>>>>> OSPF@ietf.org >>>>>>>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> OSPF mailing list >>>>>>>>> OSPF@ietf.org >>>>>>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> OSPF mailing list >>>>>>>> OSPF@ietf.org >>>>>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> _______________________________________________ >>>>>>> OSPF mailing list >>>>>>> OSPF@ietf.org >>>>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> _______________________________________________ >>>>>> OSPF mailing list >>>>>> OSPF@ietf.org >>>>>> https://www1.ietf.org/mailman/listinfo/ospf >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>> _______________________________________________ >>>> OSPF mailing list >>>> OSPF@ietf.org >>>> https://www1.ietf.org/mailman/listinfo/ospf >>>> >>>> >>>> >>>> >>>> >>> _______________________________________________ >>> OSPF mailing list >>> OSPF@ietf.org >>> https://www1.ietf.org/mailman/listinfo/ospf >>> >>> >> >> >> >> > _______________________________________________ OSPF mailing list OSPF@ietf.org https://www1.ietf.org/mailman/listinfo/ospf