Interworking between the Session Initiation Protocol (SIP) and the Extensible Messaging and Presence Protocol (XMPP): Instant Messaging
RFC 7572
| Document | Type |
RFC - Proposed Standard
(June 2015; No errata)
Was draft-ietf-stox-im (stox WG)
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Replaces | draft-saintandre-sip-xmpp-im | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Yana Stamcheva | ||
| Shepherd write-up | Show (last changed 2015-01-26) | ||
| IESG | IESG state | RFC 7572 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Alissa Cooper | ||
| Send notices to | (None) | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | No IANA Actions | ||
Internet Engineering Task Force (IETF) P. Saint-Andre
Request for Comments: 7572 &yet
Category: Standards Track A. Houri
ISSN: 2070-1721 IBM
J. Hildebrand
Cisco Systems, Inc.
June 2015
Interworking between the Session Initiation Protocol (SIP) and the
Extensible Messaging and Presence Protocol (XMPP): Instant Messaging
Abstract
This document defines a bidirectional protocol mapping for the
exchange of single instant messages between the Session Initiation
Protocol (SIP) and the Extensible Messaging and Presence Protocol
(XMPP).
Status of This Memo
This is an Internet Standards Track document.
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). Further information on
Internet Standards is available in 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/rfc7572.
Copyright Notice
Copyright (c) 2015 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.
Saint-Andre, et al. Standards Track [Page 1]
RFC 7572 SIP-XMPP Interworking: IM June 2015
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Intended Audience . . . . . . . . . . . . . . . . . . . . . . 3
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
4. XMPP to SIP . . . . . . . . . . . . . . . . . . . . . . . . . 4
5. SIP to XMPP . . . . . . . . . . . . . . . . . . . . . . . . . 6
6. Message Size . . . . . . . . . . . . . . . . . . . . . . . . 8
7. Content Types . . . . . . . . . . . . . . . . . . . . . . . . 8
8. Internationalization Considerations . . . . . . . . . . . . . 9
9. Security Considerations . . . . . . . . . . . . . . . . . . . 9
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 10
10.1. Normative References . . . . . . . . . . . . . . . . . . 10
10.2. Informative References . . . . . . . . . . . . . . . . . 11
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 13
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 13
1. Introduction
In order to help ensure interworking between instant messaging (IM)
systems that conform to the instant messaging / presence requirements
[RFC2779], it is important to clearly define protocol mappings
between such systems. Within the IETF, work has proceeded on two
instant messaging technologies:
o Various extensions to the Session Initiation Protocol ([RFC3261])
for instant messaging, in particular the MESSAGE method extension
[RFC3428]; collectively the capabilities of SIP with these
extensions are commonly called SIP for Instant Messaging and
Presence Leveraging Extensions (SIMPLE).
o The Extensible Messaging and Presence Protocol (XMPP), which
consists of a formalization of the core XML streaming protocols
developed originally by the Jabber open-source community; the
relevant specifications are [RFC6120] for the XML streaming layer
and [RFC6121] for basic presence and instant messaging extensions.
One approach to helping ensure interworking between these protocols
is to map each protocol to the abstract semantics described in
[RFC3860]; that is the approach taken by [SIMPLE-CPIM] and [RFC3922].
In contrast, the approach taken in this document is to directly map
semantics from one protocol to another (i.e., from SIP / SIMPLE to
XMPP and vice versa), since that is how existing systems solve the
interworking problem.
Both XMPP systems and IM-capable SIP systems enable entities to
exchange "instant messages". The term "instant message" usually
refers to a message sent between two entities for delivery in close
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