datatracker.ietf.org
Sign in
Version 5.4.0, 2014-04-22
Report a bug

A Session Initiation Protocol (SIP) Load Control Event Package
draft-ietf-soc-load-control-event-package-13

IETF SOC Working Group                                           C. Shen
Internet-Draft                                            H. Schulzrinne
Intended status: Standards Track                             Columbia U.
Expires: June 17, 2014                                          A. Koike
                                                                     NTT
                                                       December 14, 2013

     A Session Initiation Protocol (SIP) Load Control Event Package
            draft-ietf-soc-load-control-event-package-13.txt

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
   based on their source or destination domain, telephone number prefix
   or for a specific user.  The mechanism helps to prevent signaling
   overload and complements feedback-based SIP overload control efforts.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on June 17, 2014.

Copyright Notice

   Copyright (c) 2013 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

Shen, et al.              Expires June 17, 2014                 [Page 1]
Internet-Draft       SIP Load Control Event Package        December 2013

   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
   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  . . . . . . . . . . . . . . .   7
   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  . . . . . . . . . . . . . . . . . . . . . . .  13
       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

[include full document text]