Support for Reduced-Size Real-Time Transport Control Protocol (RTCP): Opportunities and Consequences
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From: The IESG <firstname.lastname@example.org> To: IETF-Announce <email@example.com> Cc: Internet Architecture Board <firstname.lastname@example.org>, RFC Editor <email@example.com>, avt mailing list <firstname.lastname@example.org>, avt chair <email@example.com> Subject: Protocol Action: 'Support for Reduced-Size RTCP, Opportunities and Consequences' to Proposed Standard The IESG has approved the following document: - 'Support for Reduced-Size RTCP, Opportunities and Consequences ' <draft-ietf-avt-rtcp-non-compound-09.txt> as a Proposed Standard This document is the product of the Audio/Video Transport Working Group. The IESG contact persons are Cullen Jennings and Jon Peterson. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-avt-rtcp-non-compound-09.txt
Technical Summary This memo discusses benefits and issues that arise when allowing RTCP packets to be transmitted with reduced size. The size can be reduced if the rules on how to create compound packets outlined in RFC3550 are removed or changed. Based on that analysis this memo defines certain changes to the rules to allow feedback messages to be sent as reduced-size RTCP packets under certain conditions when using the RTP AVPF profile (RFC 4585). This document updates [RFC3550], [RFC3711] and [RFC4585]. Working Group Summary When the initial proposals for reduced-size RTCP reports were presented (end of 2006), they provoked considerable concern and discussion because they violated current RFC 3550 rules. Over the two years since, agreement has been reached on the acceptable modifications to RFC 3550 rules and the concerns that have to be documented along with them. The current document has strong WG consensus. Document Quality Colin Perkins and Randell Jesup provided oversight and insight throughout the evolution of this document.