A Framework for Session Description Protocol (SDP) Attributes When Multiplexing
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From: The IESG <email@example.com> To: "IETF-Announce" <firstname.lastname@example.org> Cc: email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, "Bo Burman" <firstname.lastname@example.org>, "The IESG" <email@example.com>, firstname.lastname@example.org Subject: Protocol Action: 'A Framework for SDP Attributes when Multiplexing' to Proposed Standard (draft-ietf-mmusic-sdp-mux-attributes-16.txt) The IESG has approved the following document: - 'A Framework for SDP Attributes when Multiplexing' (draft-ietf-mmusic-sdp-mux-attributes-16.txt) as Proposed Standard This document is the product of the Multiparty Multimedia Session Control Working Group. The IESG contact persons are Alexey Melnikov, Ben Campbell and Alissa Cooper. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-mmusic-sdp-mux-attributes/
Technical Summary For scenarios where SDP is used to negotiate the usage of single 5- tuple for sending and receiving media associated with multiple media descriptions, it is required to understand the semantic implications of the SDP attributes associated with the RTP Media Streams multiplexed over a single underlying transport layer flow. The purpose of this specification is to provide a framework for analyzing the multiplexing characteristics of SDP attributes. This specification also categorizes the existing SDP attributes based on the framework described herein. Working Group Summary There was nothing particularly notable during work group deliberations. After the publication request, people noted a discrepancy between this document and draft-ietf-avtcore-rfc5764-mux-fixes about whether zrtp could be multiplexed. This has been corrected in the most recent version of draft-ietf-avtcore-rfc5764-mux-fixes. Document Quality The document was extensively reviewed and discussed by a large number of MMUSIC members (listed in Acknowledgements section). Personnel The Document Shepherd is Bo Burman. The Responsible AD is Ben Campbell.