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RTP and the Datagram Congestion Control Protocol (DCCP)
RFC 5762

Document type: RFC - Proposed Standard (April 2010; No errata)
Updated by RFC 6773
Document stream: IETF
Last updated: 2013-03-02
Other versions: plain text, pdf, html

IETF State: (None)
Consensus: Unknown
Document shepherd: No shepherd assigned

IESG State: RFC 5762 (Proposed Standard)
Responsible AD: Lars Eggert
Send notices to: dccp-chairs@tools.ietf.org, draft-ietf-dccp-rtp@tools.ietf.org

Internet Engineering Task Force (IETF)                        C. Perkins
Request for Comments: 5762                         University of Glasgow
Category: Standards Track                                     April 2010
ISSN: 2070-1721

        RTP and the Datagram Congestion Control Protocol (DCCP)

Abstract

   The Real-time Transport Protocol (RTP) is a widely used transport for
   real-time multimedia on IP networks.  The Datagram Congestion Control
   Protocol (DCCP) is a transport protocol that provides desirable
   services for real-time applications.  This memo specifies a mapping
   of RTP onto DCCP, along with associated signalling, such that real-
   time applications can make use of the services provided by DCCP.

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/rfc5762.

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.

Perkins                      Standards Track                    [Page 1]
RFC 5762                      RTP over DCCP                   April 2010

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1. Introduction ....................................................3
   2. Rationale .......................................................3
   3. Conventions Used in This Memo ...................................4
   4. RTP over DCCP: Framing ..........................................4
      4.1. RTP Data Packets ...........................................4
      4.2. RTP Control Packets ........................................5
      4.3. Multiplexing Data and Control ..............................7
      4.4. RTP Sessions and DCCP Connections ..........................7
      4.5. RTP Profiles ...............................................8
   5. RTP over DCCP: Signalling using SDP .............................8
      5.1. Protocol Identification ....................................8
      5.2. Service Codes .............................................10
      5.3. Connection Management .....................................11
      5.4. Multiplexing Data and Control .............................11
      5.5. Example ...................................................11
   6. Security Considerations ........................................12
   7. IANA Considerations ............................................13
   8. Acknowledgements ...............................................14
   9. References .....................................................14
      9.1. Normative References ......................................14
      9.2. Informative References ....................................15

Perkins                      Standards Track                    [Page 2]
RFC 5762                      RTP over DCCP                   April 2010

1.  Introduction

   The Real-time Transport Protocol (RTP) [1] is widely used in video
   streaming, telephony, and other real-time networked applications.
   RTP can run over a range of lower-layer transport protocols, and the

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