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The Alternative Network Address Types (ANAT) Semantics for the Session Description Protocol (SDP) Grouping Framework (RFC4091)

IP.com Disclosure Number: IPCOM000125531D
Original Publication Date: 2005-Jun-01
Included in the Prior Art Database: 2005-Jun-07
Document File: 8 page(s) / 13K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Camarillo: AUTHOR [+2]

Abstract

This document defines the Alternative Network Address Types (ANAT) semantics for the Session Description Protocol (SDP) grouping framework. The ANAT semantics allow alternative types of network addresses to establish a particular media stream.

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Network Working Group                                       G. Camarillo
Request for Comments: 4091                                      Ericsson
Category: Standards Track                                   J. Rosenberg
                                                           Cisco Systems
                                                               June 2005


         The Alternative Network Address Types (ANAT) Semantics
     for the Session Description Protocol (SDP) Grouping Framework

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 defines the Alternative Network Address Types (ANAT)
   semantics for the Session Description Protocol (SDP) grouping
   framework.  The ANAT semantics allow alternative types of network
   addresses to establish a particular media stream.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
       1.1.  Scope and Relation with Interactive Connectivity
             Establishment. . . . . . . . . . . . . . . . . . . . . .  2
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  ANAT Semantics . . . . . . . . . . . . . . . . . . . . . . . .  3
   4.  Preference . . . . . . . . . . . . . . . . . . . . . . . . . .  3
   5.  Offer/Answer and ANAT  . . . . . . . . . . . . . . . . . . . .  3
   6.  Example  . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . .  4
   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  5
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . .  5
       9.1.  Normative References . . . . . . . . . . . . . . . . . .  5
       9.2.  Informational References . . . . . . . . . . . . . . . .  5

Camarillo & Rosenberg       Standards Track                     [Page 1]
RFC 4091                     ANAT Semantics                    June 2005


1.  Introduction

   A Session Description Protocol (SDP) [2] session description contains
   the media parameters to be used in establishing a number of media
   streams.  For a particular media stream, an SDP session description
   contains, among other parameters, the network a...