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TCP-Based Media Transport in the Session Description Protocol (SDP) (RFC4145)

IP.com Disclosure Number: IPCOM000128438D
Original Publication Date: 2005-Sep-01
Included in the Prior Art Database: 2005-Sep-16
Document File: 16 page(s) / 30K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

D. Yon: AUTHOR [+2]

Abstract

This document describes how to express media transport over TCP using the Session Description Protocol (SDP). It defines the SDP 'TCP' protocol identifier, the SDP 'setup' attribute, which describes the connection setup procedure, and the SDP 'connection' attribute, which handles connection reestablishment.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 9% of the total text.

Network Working Group                                             D. Yon
Request for Comments: 4145                        Tactical Software, LLC
Category: Standards Track                                   G. Camarillo
                                                                Ericsson
                                                          September 2005


  TCP-Based Media Transport in the Session Description Protocol (SDP)

Status of this Memo

   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.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   This document describes how to express media transport over TCP using
   the Session Description Protocol (SDP).  It defines the SDP 'TCP'
   protocol identifier, the SDP 'setup' attribute, which describes the
   connection setup procedure, and the SDP 'connection' attribute, which
   handles connection reestablishment.

Yon & Camarillo             Standards Track                     [Page 1]
RFC 4145               Connection-Oriented Media          September 2005


Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Protocol Identifier  . . . . . . . . . . . . . . . . . . . . .  3
   4.  Setup Attribute  . . . . . . . . . . . . . . . . . . . . . . .  4
       4.1.  The Setup Attribute in the Offer/Answer Model. . . . . .  4
   5.  The Connection Attribute . . . . . . . . . . . . . . . . . . .  5
       5.1.  Offerer Behaviour. . . . . . . . . . . . . . . . . . . .  6
       5.2.  Answerer Behaviour . . . . . . . . . . . . . . . . . . .  7
   6.  Connection Management  . . . . . . . . . . . . . . . . . . . .  8
       6.1.  Connection Establishment . . . . . . . . . . . . . . . .  8
       6.2.  Connection Reestablishment . . . . . . . . . . . . . . .  8
       6.3.  Connection Termination . . . . . . . . . . . . . . . . .  8
   7.  Examples . . . . . . . . . . . . . . . . . . . . . . . . . . .  9
       7.1.  Passive/Active . . . . . . . . . . . . . . . . . . . . .  9
       7.2.  Actpass/Passive. . . . . . . . . . . . . . . . . . . . .  9
       7.3.  Existing Connection Reuse. . . . . . . . . . . . . . . . 10
       7.4.  Existing Connection Refusal. . . ....