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Media Resource Broker (MRB) Location Function (MLF)
draft-boulton-mediactrl-mrb-location-function-06

Document type: Active Internet-Draft (individual)
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Last updated: 2014-01-27
Intended RFC status: Unknown
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Network Working Group                                         C. Boulton
Internet-Draft                                                  J. Dally
Intended status: Informational                           NS-Technologies
Expires: July 31, 2014                                  January 27, 2014

          Media Resource Broker (MRB) Location Function (MLF)
            draft-boulton-mediactrl-mrb-location-function-06

Abstract

   The MediaCtrl work group in the IETF has produced a complete
   architecture for controlling media server resources in Internet
   Protocol (IP) based networks.  An important function in the MediaCtrl
   architecture is the Media Resource Broker entity which monitors and
   allocates media resources to requesting applications.  This document
   introduces a Media Resource Broker (MRB) Location Function (MLF)
   which works in partnership with MRB's in large deployments providing
   a light weight scaling and failover mechanism.

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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   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 July 31, 2014.

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

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Internet-Draft         MRB Location Function(MLF)           January 2014

   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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions and Terminology . . . . . . . . . . . . . . . . .   4
   3.  Overview of Operation . . . . . . . . . . . . . . . . . . . .   5
     3.1.  MLF using HTTP  . . . . . . . . . . . . . . . . . . . . .   7
     3.2.  MLF using SIP . . . . . . . . . . . . . . . . . . . . . .   8
   4.  MLF Interface Definitions . . . . . . . . . . . . . . . . . .   8
   5.  Media Service Resource Publisher Interface XML Schema . . . .   8
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  10
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   As Internet Protocol(IP) networks continue to grow and IP based media
   servers increase in numbers, the complexity associated increases.
   This includes important areas such as provisioning, media resource
   allocation, media resource management and media resource scalability.
   The MediaCtrl Media Resource Broker (MRB) [I-D.ietf-mediactrl-mrb]
   was introduced to provide virtualisation of IP media resources.  The
   MRB moves deployments away from the current siloed deployment model
   where media servers are explicitly associated and utilized by
   specified applications.  Figure 1 illustrates the common model used
   by many deployments today.

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                                   +---+-----+---+
                                   |    Media    |
                    +----->|    Server   |
                                |  +-------------+
                                    |
   +---+-----+---+                  |      +---+-----+---+
   | Application |                  |      |    Media    |

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