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Integration of Resource Management and Session Initiation Protocol (SIP) (RFC3312)

IP.com Disclosure Number: IPCOM000010074D
Original Publication Date: 2002-Oct-01
Included in the Prior Art Database: 2004-Mar-23
Document File: 31 page(s) / 66K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Camarillo: AUTHOR [+5]

Abstract

This document defines a generic framework for preconditions, which are extensible through IANA registration. This document also discusses how network quality of service can be made a precondition for establishment of sessions initiated by the Session Initiation Protocol (SIP). These preconditions require that the participant reserve network resources before continuing with the session. We do not define new quality of service reservation mechanisms; these preconditions simply require a participant to use existing resource reservation mechanisms before beginning the session.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 8% of the total text.

Network Working Group G. Camarillo, Ed.

Request for Comments: 3312 Ericsson

Category: Standards Track W. Marshall, Ed.

AT&T

J. Rosenberg

dynamicsoft

October 2002

Integration of Resource Management

and Session Initiation Protocol (SIP)

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 (2002). All Rights Reserved.

Abstract

This document defines a generic framework for preconditions, which

are extensible through IANA registration. This document also

discusses how network quality of service can be made a precondition

for establishment of sessions initiated by the Session Initiation

Protocol (SIP). These preconditions require that the participant

reserve network resources before continuing with the session. We do

not define new quality of service reservation mechanisms; these

preconditions simply require a participant to use existing resource

reservation mechanisms before beginning the session.

Camarillo, et. al. Standards Track [Page 1]

RFC 3312 Integration of Resource Management and SIP October 2002

Table of Contents

1 Introduction ................................................... 2

2 Terminology .................................................... 3

3 Overview ....................................................... 3

4 SDP parameters ................................................. 4

5 Usage of preconditions with offer/answer ....................... 7

5.1 Generating an offer .......................................... 8

5.1.1 SDP encoding ............................................... 9

5.2 Generating an Answer ......................................... 10

6 Suspending and Resuming Session Establishment .................. 11

7 Status Confirmation ............................................ 12

8 Refusing an offer .............................................. 13

8.1 Rejecting a Media Stream ..................................... 14

9 Unknown Precondition Type ...................................... 15

10 Multiple Preconditions per Media Stream ....................... 15

11 Option Tag for Preconditions .................................. 16

12 Indicating Capabilities ....................................... 16

13 Examples ...................................................... 16

13.1 End-to-end Status Type ...................................... 17

13.2 Segmented Status Type ....................................... 21

13.3 Offer in a SIP response ..................................... 23

14 Security Considerations ....................................... 26

15 IANA Considerations ........................................... 26

16 Notice Regarding Intellectual Property Rights ................. 27

17 Re...