A Session Initiation Protocol (SIP) Load-Control Event Package
RFC 7200
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Type |
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RFC - Proposed Standard
(April 2014; No errata)
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Last updated |
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2015-10-14
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Replaces |
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draft-soc-load-control-event-package
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Stream |
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IETF
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Formats |
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plain text
pdf
html
bibtex
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WG state
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WG Consensus: Waiting for Write-Up
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Document shepherd |
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Volker Hilt
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Shepherd write-up |
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Show
(last changed 2013-12-05)
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| IESG |
IESG state |
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RFC 7200 (Proposed Standard)
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Consensus Boilerplate |
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Unknown
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Telechat date |
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Responsible AD |
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Richard Barnes
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IESG note |
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Volker Hilt (volker.hilt@alcatel-lucent.com) is the document shepherd.
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Send notices to |
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(None)
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| IANA |
IANA review state |
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Version Changed - Review Needed
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IANA action state |
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RFC-Ed-Ack
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Internet Engineering Task Force (IETF) C. Shen
Request for Comments: 7200 H. Schulzrinne
Category: Standards Track Columbia U.
ISSN: 2070-1721 A. Koike
NTT
April 2014
A Session Initiation Protocol (SIP) Load-Control Event Package
Abstract
This specification defines a load-control event package for the
Session Initiation Protocol (SIP). It allows SIP entities to
distribute load-filtering policies to other SIP entities in the
network. The load-filtering policies contain rules to throttle calls
from a specific user or based on their source or destination domain,
telephone number prefix. The mechanism helps to prevent signaling
overload and complements feedback-based SIP overload control efforts.
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/rfc7200.
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.
Shen, et al. Standards Track [Page 1]
RFC 7200 SIP Load-Control Event Package April 2014
Table of Contents
1. Introduction ....................................................3
2. Conventions .....................................................3
3. SIP Load-Filtering Overview .....................................4
3.1. Load-Filtering Policy Format ...............................4
3.2. Load-Filtering Policy Computation ..........................4
3.3. Load-Filtering Policy Distribution .........................4
3.4. Applicable Network Domains .................................8
4. Load-Control Event Package ......................................9
4.1. Event Package Name .........................................9
4.2. Event Package Parameters ...................................9
4.3. SUBSCRIBE Bodies ...........................................9
4.4. SUBSCRIBE Duration .........................................9
4.5. NOTIFY Bodies .............................................10
4.6. Notifier Processing of SUBSCRIBE Requests .................10
4.7. Notifier Generation of NOTIFY Requests ....................10
4.8. Subscriber Processing of NOTIFY Requests ..................10
4.9. Handling of Forked Requests ...............................12
4.10. Rate of Notifications ....................................12
4.11. State Delta ..............................................12
5. Load-Control Document ..........................................13
5.1. Format ....................................................13
5.2. Namespace .................................................13
5.3. Conditions ................................................14
5.3.1. Call Identity ......................................14
5.3.2. Method .............................................16
5.3.3. Target SIP Entity ..................................17
5.3.4. Validity ...........................................18
5.4. Actions ...................................................18
6. XML Schema Definition for Load Control .........................20
7. Security Considerations ........................................23
8. IANA Considerations ............................................24
8.1. Load-Control Event Package Registration ...................24
8.2. application/load-control+xml Media Type Registration ......24
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