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Conventions for the use of the Session Description Protocol (SDP) for ATM Bearer Connections (RFC3108)

IP.com Disclosure Number: IPCOM000005296D
Original Publication Date: 2001-May-01
Included in the Prior Art Database: 2001-Aug-21

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Kumar: AUTHOR [+2]

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.

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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' att...