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Grouping of Media Lines in the Session Description Protocol (SDP)

The information below is for an old version of the document that is already published as an RFC.
Document Type
This is an older version of an Internet-Draft that was ultimately published as RFC 3388.
Authors Henning Schulzrinne , Gonzalo Camarillo , Goran AP Eriksson , Jan Holler
Last updated 2013-03-02 (Latest revision 2002-02-28)
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status Proposed Standard
Additional resources Mailing list discussion
Stream WG state WG Document
Document shepherd (None)
IESG IESG state Became RFC 3388 (Proposed Standard)
Action Holders
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD Allison J. Mankin
IESG note
Send notices to <>, <>
A new Request for Comments is now available in online RFC libraries.

        RFC 3388
        Title:      Grouping of Media Lines in Session Description
                    Protocol (SDP)
        Author(s):  G. Camarillo, G. Eriksson, J. Holler,
                    H. Schulzrinne
        Status:     Standards Track
        Date:       December 2002
        Pages:      11
        Characters: 39365
        Updates/Obsoletes/SeeAlso:  None
        I-D Tag:    draft-ietf-mmusic-fid-06.txt


This document defines two Session Description Protocol (SDP)
attributes: "group" and "mid".  They allow to group together several
"m" lines for two different purposes: for lip synchronization and for
receiving media from a single flow (several media streams) that are
encoded in different formats during a particular session, on different
ports and host interfaces.

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

This is now Proposed Standard Protocol.

This document specifies an Internet standards track protocol for
the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the
"Internet Official Protocol Standards" (STD 1) for the
standardization state and status of this protocol.  Distribution
of this memo is unlimited.

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