TCP-Based Media Transport in the Session Description Protocol (SDP)
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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>, mmusic mailing list <firstname.lastname@example.org>, mmusic chair <email@example.com> Subject: Protocol Action: 'Connection-Oriented Media Transport in the Session Description Protocol (SDP)' to Proposed Standard The IESG has approved the following document: - 'Connection-Oriented Media Transport in the Session Description Protocol (SDP) ' <draft-ietf-mmusic-sdp-comedia-11.txt> as a Proposed Standard This document is the product of the Multiparty Multimedia Session Control Working Group. The IESG contact persons are Jon Peterson and Cullen Jennings. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-mmusic-sdp-comedia-11.txt
Technical Summary Traditionally, the Session Description Protocol (SDP) is used to set up connectionless media that runs over UDP or DCCP. When bidirectional media is set up with SDP, it is in fact established as a pair of unidirectional sockets. This specification describes how to express media transport over connection-oriented protocols in SDP. It defines the SDP TCP protocol identifier, the SDP setup attribute, which describes the connection setup procedure, and the SDP connection attribute, which handles connection reestablishment. Working Group Summary The MMUSIC WG supported the advancement of this specification, though for some time its applicability was in question. There are known implementations of this mechanism in the field. Protocol Quality This specification was reviewed for the IESG by Jon Peterson.