Diameter Group Signaling
draft-jones-diameter-group-signaling-00

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Last updated 2011-10-24
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DIME                                                            M. Jones
Internet-Draft                                       Bridgewater Systems
Intended status: Informational                          October 24, 2011
Expires: April 26, 2012

                        Diameter Group Signaling
              draft-jones-diameter-group-signaling-00.txt

Abstract

   In large network deployments, a single Diameter peer can support over
   a million concurrent Diameter sessions.  Recent use cases have
   revealed the need for Diameter peers to apply the same operation to a
   large group of Diameter sessions concurrently.  The Diameter base
   protocol commands operate on a single session so these use cases
   could result in many thousands of command exchanges in order to
   enforce the same operation on each session in the group.  In order to
   reduce signaling, it would be desirable to enable bulk operations on
   all (or part of) the sessions managed by a Diameter peer using a
   single or a few command exchanges.  This document specifies the
   Diameter protocol extensions to achieve this signaling optimization.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on April 26, 2012.

Copyright Notice

   Copyright (c) 2011 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

Jones                    Expires April 26, 2012                 [Page 1]
Internet-Draft          Diameter Group Signaling            October 2011

   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Grouping User Sessions . . . . . . . . . . . . . . . . . . . .  5
     3.1.  Group assignment at session initiation . . . . . . . . . .  5
     3.2.  Mid-session group assignment modifications . . . . . . . .  5
       3.2.1.  Client-initiated group assignment changes  . . . . . .  5
       3.2.2.  Server-initiated group assignment changes  . . . . . .  5
   4.  Protocol Description . . . . . . . . . . . . . . . . . . . . .  6
     4.1.  Session Management . . . . . . . . . . . . . . . . . . . .  6
       4.1.1.  Authorization Session State Machine  . . . . . . . . .  6
       4.1.2.  Server Initiated Group Re-auth . . . . . . . . . . . . 10
       4.1.3.  Session Group Termination  . . . . . . . . . . . . . . 10
       4.1.4.  Aborting a Group of Sessions . . . . . . . . . . . . . 10
     4.2.  Commands . . . . . . . . . . . . . . . . . . . . . . . . . 10
       4.2.1.  Group-Re-Auth-Request  . . . . . . . . . . . . . . . . 10
       4.2.2.  Group-Re-Auth-Answer . . . . . . . . . . . . . . . . . 10
       4.2.3.  Group-Session-Termination-Request  . . . . . . . . . . 11
       4.2.4.  Group-Session-Termination-Answer . . . . . . . . . . . 12
       4.2.5.  Group-Abort-Session-Request  . . . . . . . . . . . . . 13
       4.2.6.  Group-Abort-Session-Answer . . . . . . . . . . . . . . 13
   5.  AVPs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
     5.1.  Session-Group-Id AVP . . . . . . . . . . . . . . . . . . . 15
     5.2.  Session-Group-Action AVP . . . . . . . . . . . . . . . . . 15
   6.  Result-Code AVP Values . . . . . . . . . . . . . . . . . . . . 16
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 17
     7.1.  Command Codes  . . . . . . . . . . . . . . . . . . . . . . 17
     7.2.  AVP Codes  . . . . . . . . . . . . . . . . . . . . . . . . 17
   8.  Security Considerations  . . . . . . . . . . . . . . . . . . . 18
   9.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 19
   10. Normative References . . . . . . . . . . . . . . . . . . . . . 20
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