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Conventions for the use of the Session Description Protocol (SDP) for ATM Bearer Connections
RFC 3108

Document type: RFC - Proposed Standard (May 2001; Errata)
Document stream: IETF
Last updated: 2013-03-02
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IETF State: WG Document
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IESG State: RFC 3108 (Proposed Standard)
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Network Working Group                                           R. Kumar
Request for Comments: 3108                                    M. Mostafa
Category: Standards Track                                  Cisco Systems
                                                                May 2001

   Conventions for the use of the Session Description Protocol (SDP)
                       for ATM Bearer Connections

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 (2001).  All Rights Reserved.

Abstract

   This document describes conventions for using the Session Description
   Protocol (SDP) described in RFC 2327 for controlling ATM Bearer
   Connections, and any associated ATM Adaptation Layer (AAL).  The AALs
   addressed are Type 1, Type 2 and Type 5.  This list of conventions is
   meant to be exhaustive.  Individual applications can use subsets of
   these conventions.  Further, these conventions are meant to comply
   strictly with the SDP syntax as defined in RFC 2327.

Table of Contents

   1. Introduction...................................................  3
   1.1  Key words to indicate Requirement Levels.....................  5
   2. Representation of Certain Fields within SDP description lines..  5
   2.1  Representation of Extension Attributes.......................  5
   2.2  Representation of Parameter Values...........................  5
   2.3  Directionality Convention....................................  6
   2.4 Case convention...............................................  7
   2.5 Use of special characters in SDP parameter values.............  8
   3. Capabilities Provided by SDP conventions.......................  8
   4. Format of the ATM Session Description..........................  9
   5.  Structure of the Session Description Lines.................... 11
   5.1  The Origin Line.............................................. 11
   5.2  The Session Name Line........................................ 12
   5.3  The Connection Information Line.............................. 13
   5.4  The Timestamp Line........................................... 15

Kumar & Mostafa             Standards Track                     [Page 1]
RFC 3108                        ATM SDP                         May 2001

   5.5  Media Information Line for ATM connections................... 16
   5.5.1  The Virtual Connection ID.................................. 16
   5.5.2  The Transport Parameter.................................... 19
   5.5.3  The Format List for AAL1 and AAL5 applications............. 21
   5.5.4  The Format List for AAL2 applications...................... 21
   5.5.5  Media information line construction........................ 22
   5.6  The Media Attribute Lines.................................... 27
   5.6.1  ATM bearer connection attributes........................... 28
   5.6.1.1  The 'eecid' attribute.................................... 30
   5.6.1.2  The 'aalType' attribute.................................. 31
   5.6.1.3  The 'capability' attribute............................... 32
   5.6.1.4  The 'qosClass' attribute................................. 33
   5.6.1.5  The 'bcob' attribute..................................... 34
   5.6.1.6  The 'stc' attribute...................................... 34
   5.6.1.7  The 'upcc' attribute..................................... 35
   5.6.1.8  The 'atmQOSparms' attribute.............................. 35
   5.6.1.9  The 'atmTrfcDesc'  attribute............................. 37
   5.6.1.10 The 'abrParms' attribute................................. 39
   5.6.1.11 The 'abrSetup' attribute................................. 40
   5.6.1.12 The 'bearerType' attribute............................... 41
   5.6.1.13 The 'lij' attribute...................................... 42
   5.6.1.14 The 'anycast' attribute.................................. 43
   5.6.1.15 The 'cache' attribute.................................... 43
   5.6.1.16 The 'bearerSigIE' attribute.............................. 44
   5.6.2  ATM Adaptation Layer (AAL) attributes...................... 45
   5.6.2.1  The 'aalApp' attribute................................... 46
   5.6.2.2  The 'cbrRate' attribute.................................. 48
   5.6.2.3  The 'sbc' attribute...................................... 49
   5.6.2.4  The 'clkrec' attribute................................... 51

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