A Session Identifier for the Session Initiation Protocol (SIP)
RFC 7329
| Document | Type |
RFC - Informational
(August 2014; No errata)
Obsoleted by RFC 7989
Was draft-kaplan-insipid-session-id (individual in rai area)
|
|
|---|---|---|---|
| Last updated | 2018-12-20 | ||
| Replaces | draft-kaplan-dispatch-session-id | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Reviews | |||
| Stream | WG state | (None) | |
| Document shepherd | Gonzalo Salgueiro | ||
| Shepherd write-up | Show (last changed 2013-08-02) | ||
| IESG | IESG state | RFC 7329 (Informational) | |
| Consensus Boilerplate | No | ||
| Telechat date | |||
| Responsible AD | Richard Barnes | ||
| Send notices to | insipid-chairs@ietf.org | ||
| IANA | IANA review state | IANA OK - Actions Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) H. Kaplan
Request for Comments: 7329 Oracle
Category: Informational August 2014
ISSN: 2070-1721
A Session Identifier for the Session Initiation Protocol (SIP)
Abstract
There is a need for having a globally unique session identifier for
the same SIP session that can be consistently maintained across SIP
Proxies, Back-to-Back User Agents (B2BUAs), and other SIP
middleboxes, for the purpose of troubleshooting. This document
proposes a new SIP header to carry such a value: Session-ID.
The mechanism defined in this document has been widely deployed, and
is being followed in a backward-compatible fashion for a new
Standards Track document produced by the INSIPID Working Group.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7329.
Kaplan Informational [Page 1]
RFC 7329 SIP Session Identifier August 2014
Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction ....................................................3
1.1. Requirements ...............................................4
2. Terminology .....................................................4
3. Overview of Operation ...........................................4
4. Session-ID Behavior .............................................5
4.1. Generating a Session-ID Value ..............................5
4.2. UAC Behavior ...............................................6
4.3. UAS Behavior ...............................................6
4.4. Proxy Behavior .............................................6
4.5. B2BUA Behavior .............................................7
4.5.1. B2BUA Generation of New Session-ID ..................8
4.5.2. B2BUA Insertion of Saved Session-ID .................8
5. Handling SIP Transfer Scenarios .................................8
5.1. Out-of-Dialog REFER ........................................9
5.2. Refer-To URI ...............................................9
5.3. Out-of-Dialog INVITE with Replaces .........................9
6. Session-ID Migration and Failure Scenarios .....................10
7. New 'Session-ID' Header ........................................11
7.1. Augmented BNF Definitions .................................11
8. Example Exchange ...............................................11
9. Security Considerations ........................................11
9.1. Security Considerations for Administrators ................12
9.2. Security Considerations for Session-ID Extensions .........12
10. IANA Considerations ...........................................13
11. Acknowledgments ...............................................13
12. References ....................................................13
12.1. Normative References .....................................13
12.2. Informative References ...................................14
Appendix A. Use Cases Not in Scope for Session-ID .................15
A.1. Dialog Correlation for SIP ................................15
Kaplan Informational [Page 2]
RFC 7329 SIP Session Identifier August 2014
1. Introduction
This RFC, which contains the text of an individual Internet-Draft
that was submitted originally to the DISPATCH Working Group, is being
published now as an Informational document to provide a reference for
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