Forward Error Correction Grouping Semantics in the Session Description Protocol
RFC 5956

Approval announcement
Draft of message to be sent after approval:

From: The IESG <>
To: IETF-Announce <>
Cc: Internet Architecture Board <>,
    RFC Editor <>, 
    mmusic mailing list <>, 
    mmusic chair <>
Subject: Protocol Action: 'Forward Error Correction Grouping Semantics in Session Description Protocol' to Proposed Standard

The IESG has approved the following document:

- 'Forward Error Correction Grouping Semantics in Session Description 
   Protocol '
   <draft-ietf-mmusic-rfc4756bis-10.txt> as a Proposed Standard

This document is the product of the Multiparty Multimedia Session Control Working Group. 

The IESG contact persons are Robert Sparks and Gonzalo Camarillo.

A URL of this Internet-Draft is:

Technical Summary
  This document defines semantics for grouping the
  associated source and Forward Error Correction (FEC) 
  repair flows in the Session Description Protocol (SDP).  
  It obsoletes the previous RFC 4756 that defines FEC
  grouping semantics in SDP by adding the three main capabilities:
    a) It is now possible to indicate more than one source and/or 
       repair flows in the same SDP group, and
    b) Additive repair flows can be sufficiently described, and,
    c) SSRC-level grouping of FEC flows is now possible for
       SSRC-multiplexed RTP streams.

Working Group Summary
   The MMUSIC Working Group has consensus to
   publish this document as a Proposed Standard.

Document Quality
  The document has received several reviews in both the
  MMUSIC WG (Colin Perkins, Roni Even, and Thomas Schierl) 
  and the FEC Frame WG (Ula&#351; C. Kozat).

The Document Shepherd is Jean-Francois Mule, and the Responsible Area
Director is Robert Sparks.