datatracker.ietf.org
Sign in
Version 5.6.2.p5, 2014-08-04
Report a bug

Negotiating Media Multiplexing Using the Session Description Protocol (SDP)
draft-ietf-mmusic-sdp-bundle-negotiation-08

Document type: Active Internet-Draft (mmusic WG)
Document stream: IETF
Last updated: 2014-08-22
Intended RFC status: Unknown
Other versions: plain text, xml, pdf, html

IETF State: WG Document Apr 2014
Document shepherd: Flemming Andreasen

IESG State: I-D Exists
Responsible AD: (None)
Send notices to: No addresses provided

MMUSIC Working Group                                         C. Holmberg
Internet-Draft                                                  Ericsson
Updates: 3264 (if approved)                                H. Alvestrand
Intended status: Standards Track                                  Google
Expires: February 23, 2015                                   C. Jennings
                                                                   Cisco
                                                         August 22, 2014

 Negotiating Media Multiplexing Using the Session Description Protocol
                                 (SDP)
            draft-ietf-mmusic-sdp-bundle-negotiation-08.txt

Abstract

   This specification defines a new SDP Grouping Framework extension,
   "BUNDLE", that can be used with the Session Description Protocol
   (SDP) Offer/Answer mechanism to negotiate the usage of bundled media,
   which refers to the usage of a single 5-tuple for sending and
   receiving media associated with multiple SDP media descriptions ("m="
   lines).

   This specification also updates sections 5.1, 8.1 and 8.2 of RFC
   3264, in order to allow an answerer to in an SDP answer assign a non-
   zero port value to an "m=" line, even if the offerer in the
   associated SDP offer had assigned a zero port value to the "m=" line.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on February 23, 2015.

Holmberg, et al.        Expires February 23, 2015               [Page 1]
Internet-Draft                Bundled media                  August 2014

Copyright Notice

   Copyright (c) 2014 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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Conventions . . . . . . . . . . . . . . . . . . . . . . . . .   6
   4.  Applicability Statement . . . . . . . . . . . . . . . . . . .   6
   5.  SDP Grouping Framework BUNDLE Extension Semantics . . . . . .   6
     5.1.  General . . . . . . . . . . . . . . . . . . . . . . . . .   6
     5.2.  SDP Offer/Answer Procedures . . . . . . . . . . . . . . .   6
       5.2.1.  General . . . . . . . . . . . . . . . . . . . . . . .   6
       5.2.2.  SDP Information Considerations  . . . . . . . . . . .   7
       5.2.3.  Generating the Initial SDP Offer  . . . . . . . . . .   8
       5.2.4.  Generating the SDP Answer . . . . . . . . . . . . . .   8
       5.2.5.  Offerer Processing of the SDP Answer  . . . . . . . .  10
       5.2.6.  Modifying the Session . . . . . . . . . . . . . . . .  11
   6.  SDP 'bundle-only' Attribute . . . . . . . . . . . . . . . . .  13
     6.1.  General . . . . . . . . . . . . . . . . . . . . . . . . .  13
     6.2.  SDP Offer/Answer Procedures . . . . . . . . . . . . . . .  13
       6.2.1.  Generating the Initial SDP Offer  . . . . . . . . . .  13
       6.2.2.  Generating the SDP Answer . . . . . . . . . . . . . .  13
       6.2.3.  Offerer Processing of the SDP Answer  . . . . . . . .  14
       6.2.4.  Modifying the Session . . . . . . . . . . . . . . . .  14
   7.  Protocol Identification . . . . . . . . . . . . . . . . . . .  15
     7.1.  General . . . . . . . . . . . . . . . . . . . . . . . . .  15
     7.2.  STUN, DTLS, SRTP  . . . . . . . . . . . . . . . . . . . .  15
   8.  RTP Considerations  . . . . . . . . . . . . . . . . . . . . .  15
     8.1.  Single RTP Session  . . . . . . . . . . . . . . . . . . .  15
       8.1.1.  General . . . . . . . . . . . . . . . . . . . . . . .  16

[include full document text]