Network Working Group C. Boulton
Internet-Draft J. Dally
Intended status: Informational NS-Technologies
Expires: August 1, 2013 January 28, 2013
Media Resource Broker (MRB) Location Function (MLF)
draft-boulton-mediactrl-mrb-location-function-04
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
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This Internet-Draft will expire on August 1, 2013.
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Boulton & Dally Expires August 1, 2013 [Page 1]
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Conventions and Terminology . . . . . . . . . . . . . . . . . 6
3. Overview of Operation . . . . . . . . . . . . . . . . . . . . 7
3.1. MLF using HTTP . . . . . . . . . . . . . . . . . . . . . . 9
3.2. MLF using SIP . . . . . . . . . . . . . . . . . . . . . . 10
4. MLF Interface Definitions . . . . . . . . . . . . . . . . . . 11
5. Media Service Resource Publisher Interface XML Schema . . . . 12
6. Security Considerations . . . . . . . . . . . . . . . . . . . 14
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 15
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 16
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9.1. Normative References . . . . . . . . . . . . . . . . . . . 17
9.2. Informative References . . . . . . . . . . . . . . . . . . 17
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 18
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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.
+---+-----+---+
| Media |
+----->| Server |
| +-------------+
|
+---+-----+---+ | +---+-----+---+
| Application | | | Media |
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