Last Call: <draft-ietf-avtcore-6222bis-03.txt> (Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs)) to Proposed Standard
The IESG <iesg-secretary@ietf.org> Tue, 28 May 2013 20:55 UTC
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From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Subject: Last Call: <draft-ietf-avtcore-6222bis-03.txt> (Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs)) to Proposed Standard
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Date: Tue, 28 May 2013 13:55:43 -0700
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The IESG has received a request from the Audio/Video Transport Core Maintenance WG (avtcore) to consider the following document: - 'Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs)' <draft-ietf-avtcore-6222bis-03.txt> as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2013-06-11. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract The RTP Control Protocol (RTCP) Canonical Name (CNAME) is a persistent transport-level identifier for an RTP endpoint. While the Synchronization Source (SSRC) identifier of an RTP endpoint may change if a collision is detected or when the RTP application is restarted, its RTCP CNAME is meant to stay unchanged, so that RTP endpoints can be uniquely identified and associated with their RTP media streams. For proper functionality, RTCP CNAMEs should be unique within the participants of an RTP session. However, the existing guidelines for choosing the RTCP CNAME provided in the RTP standard are insufficient to achieve this uniqueness. RFC 6222 was published to update those guidelines to allow endpoints to choose unique RTCP CNAMEs. Unfortunately, later investigations showed that some parts of the new algorithms were unnecessarily complicated and/or ineffective. This document addresses these concerns and replaces RFC 6222. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-avtcore-6222bis/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-avtcore-6222bis/ballot/ No IPR declarations have been submitted directly on this I-D.