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The Session Description Protocol (SDP) Grouping Framework (RFC5888)

IP.com Disclosure Number: IPCOM000196710D
Original Publication Date: 2010-Jun-01
Included in the Prior Art Database: 2010-Jun-12
Document File: 42 page(s) / 44K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Camarillo: AUTHOR [+2]

Abstract

RFC 3388 [RFC3388] specified a media-line grouping framework for SDP [RFC4566]. This specification obsoletes RFC 3388 [RFC3388].

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Internet Engineering Task Force (IETF)                      G. Camarillo Request for Comments: 5888                                      Ericsson Obsoletes: 3388                                           H. Schulzrinne Category: Standards Track                            Columbia University ISSN: 2070-1721                                                June 2010

        The Session Description Protocol (SDP) Grouping Framework

Abstract

   In this specification, we define a framework to group "m" lines in    the Session Description Protocol (SDP) for different purposes.  This    framework uses the "group" and "mid" SDP attributes, both of which    are defined in this specification.  Additionally, we specify how to    use the framework for two different purposes: for lip synchronization    and for receiving a media flow consisting of several media streams on    different transport addresses.  This document obsoletes RFC 3388.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at    http://www.rfc-editor.org/info/rfc5888.

Copyright Notice

   Copyright (c) 2010 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents    (http://trustee.ietf.org/license-info) in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from this document must    include Simplified BSD License text as described in Section 4.e of    the Trust Legal Provisions and are provided without warranty as    described in the Simplified BSD License.

 Camarillo & Schulzrinne      Standards Track                    [Page 1]
 RFC 5888                 SDP Grouping Framework                June 2010

 Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3

   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  3

   3.  Overview of Operation  . . . . . . . . . . . . . . . . . . . .  3

   4.  Media Stream Identification Attribute  . . . . . . ....