Media Resource Brokering
draft-ietf-mediactrl-mrb-16

The information below is for an old version of the document
Document Type Active Internet-Draft (mediactrl WG)
Last updated 2012-12-13 (latest revision 2012-11-01)
Replaces draft-boulton-mediactrl-mrb
Stream IETF
Intended RFC status Proposed Standard
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Shepherd write-up Show (last changed 2012-10-08)
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Telechat date
Needs a YES. Needs 9 more YES or NO OBJECTION positions to pass.
Responsible AD Robert Sparks
IESG note Dale Worley (dworley@avaya.com) is the document shepherd.
Send notices to mediactrl-chairs@tools.ietf.org, draft-ietf-mediactrl-mrb@tools.ietf.org,garyalanmunson@att.net
Network Working Group                                         C. Boulton
Internet-Draft                                           NS-Technologies
Intended status: Standards Track                              L. Miniero
Expires: May 4, 2013                                            Meetecho
                                                               G. Munson
                                                                    AT&T
                                                        October 31, 2012

                        Media Resource Brokering
                      draft-ietf-mediactrl-mrb-16

Abstract

   The MediaCtrl work group in the IETF has proposed an architecture for
   controlling media services.  The Session Initiation Protocol (SIP) is
   used as the signalling protocol which provides many inherent
   capabilities for message routing.  In addition to such signalling
   properties, a need exists for intelligent, application level media
   service selection based on non-static signalling properties.  This is
   especially true when considered in conjunction with deployment
   architectures that include 1:M and M:N combinations of Application
   Servers and Media Servers.  This document introduces a Media Resource
   Broker (MRB) entity which manages the availability of Media Servers
   and the media resource demands of Application Servers.  The document
   includes potential deployment options for an MRB and appropriate
   interfaces to Application Servers and Media Servers.

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
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   This Internet-Draft will expire on May 4, 2013.

Copyright Notice

   Copyright (c) 2012 IETF Trust and the persons identified as the

Boulton, et al.            Expires May 4, 2013                  [Page 1]
Internet-Draft          Media Resource Brokering            October 2012

   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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Conventions and Terminology . . . . . . . . . . . . . . . . .   7
   3.  Problem Discussion  . . . . . . . . . . . . . . . . . . . . .   8
   4.  Deployment Scenario Options . . . . . . . . . . . . . . . . .   9
     4.1.   Query MRB  . . . . . . . . . . . . . . . . . . . . . . .   9
       4.1.1.  Hybrid Query MRB  . . . . . . . . . . . . . . . . . .  10
     4.2.   In-Line MRB  . . . . . . . . . . . . . . . . . . . . . .  11
   5.  MRB Interface Definitions . . . . . . . . . . . . . . . . . .  14
     5.1.   Media Server Resource Publish Interface  . . . . . . . .  14
       5.1.1.  Control Package Definition  . . . . . . . . . . . . .  15
       5.1.2.  Element Definitions . . . . . . . . . . . . . . . . .  16
       5.1.3.  <mrbrequest>  . . . . . . . . . . . . . . . . . . . .  17
       5.1.4.  <mrbresponse> . . . . . . . . . . . . . . . . . . . .  19
       5.1.5.  <mrbnotification> . . . . . . . . . . . . . . . . . .  20
     5.2.   Media Service Resource Consumer Interface  . . . . . . .  32
       5.2.1.  Query Mode / HTTP Consumer Interface Usage  . . . . .  32
       5.2.2.  In-Line Aware Mode / SIP Consumer Interface Usage . .  33
       5.2.3.  Consumer Interface Lease Mechanism  . . . . . . . . .  36
       5.2.4.  <mrbconsumer> . . . . . . . . . . . . . . . . . . . .  39
       5.2.5.  Media Service Resource Request  . . . . . . . . . . .  39
       5.2.6.  Media Service Resource Response . . . . . . . . . . .  51
     5.3.   In-Line Unaware MRB Interface  . . . . . . . . . . . . .  54
   6.  MRB acting as a B2BUA . . . . . . . . . . . . . . . . . . . .  56
   7.  Multi-modal MRB Implementations . . . . . . . . . . . . . . .  57
   8.  Relative Merits of Query Mode, IAMM, and IUMM . . . . . . . .  58
   9.  Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .  60
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