I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please wait for direction from your document shepherd or AD before posting a new version of the draft. For more information, please see the FAQ at < http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>. Document: draft-ietf-xrblock-rtcp-xr-video-lc-05 Reviewer: Elwyn Davies Review Date: 2015/12/14 IETF LC End Date: 2015-12-04 IESG Telechat date: (if known) 2015-12-17 Summary: Ready with nits, primarily a number of acronyms needing expansion. Major issues: None Minor issues: None Nits/editorial comments: Abstract: Need to expand RTCP (to RTP Control Protocol) and XR (Extended Reports). s1, para 2: Need to expand QoE. s1.2: s/RTP Monitoring Architectures [RFC6792]/RTP Monitoring Framework [RFC6792]/ s1.3: OLD These metrics are applicable to video applications the video component of Audio/Video applications using RTP and applying packet loss concealment mechanisms which are incorporated into the receiving endpoint to mitigate the impact of network impairments on QoE. NEW: These metrics are applicable to video applications and the video component of Audio/Video applications using RTP that apply packet loss concealment mechanisms incorporated into the receiving endpoint to mitigate the impact of network impairments on QoE. END s1.3: Need to expand IPTV. s3, item b: Need to expand IDR; s/Using inter-frame extrapolation/Using the inter-frame extrapolation/ s3, item d: s/so that receiver/so that the receiver/ s3, last para: s/methods slightly different/methods to be slightly different/ s4, para 1: Need to expand SSRC. s4, duration fields: It would useful to insert a reference to the place where the RTP timestamp units are defined. s7.1: should refer back to s4 for the definition of VLC. s7.2: should refer back to s5 for the definition of video-loss-concealment.