Media Resource Brokering
RFC 6917
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Type |
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RFC - Proposed Standard
(April 2013; No errata)
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Last updated |
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2015-10-14
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Replaces |
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draft-boulton-mediactrl-mrb
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Stream |
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IETF
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plain text
pdf
html
bibtex
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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No shepherd assigned
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Shepherd write-up |
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Show
(last changed 2012-10-08)
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| IESG |
IESG state |
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RFC 6917 (Proposed Standard)
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Consensus Boilerplate |
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Unknown
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Telechat date |
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Responsible AD |
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Robert Sparks
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IESG note |
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Dale Worley (dworley@avaya.com) is the document shepherd.
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Send notices to |
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garyalanmunson@att.net
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Internet Engineering Task Force (IETF) C. Boulton
Request for Comments: 6917 NS-Technologies
Category: Standards Track L. Miniero
ISSN: 2070-1721 Meetecho
G. Munson
AT&T
April 2013
Media Resource Brokering
Abstract
The MediaCtrl working group in the IETF has proposed an architecture
for controlling media services. The Session Initiation Protocol
(SIP) is used as the signaling protocol that provides many inherent
capabilities for message routing. In addition to such signaling
properties, a need exists for intelligent, application-level media
service selection based on non-static signaling 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 is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6917.
Boulton, et al. Standards Track [Page 1]
RFC 6917 Media Resource Brokering April 2013
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
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 and Terminology .....................................6
3. Problem Discussion ..............................................6
4. Deployment Scenario Options .....................................7
4.1. Query MRB ..................................................8
4.1.1. Hybrid Query MRB ....................................9
4.2. In-Line MRB ...............................................11
5. MRB Interface Definitions ......................................12
5.1. Media Server Resource Publish Interface ...................12
5.1.1. Control Package Definition .........................13
5.1.2. Element Definitions ................................15
5.1.3. <mrbrequest> .......................................15
5.1.4. <mrbresponse> ......................................17
5.1.5. <mrbnotification> ..................................19
5.2. Media Service Resource Consumer Interface .................30
5.2.1. Query Mode/HTTP Consumer Interface Usage ...........31
5.2.2. In-Line Aware Mode/SIP Consumer Interface Usage ....32
5.2.3. Consumer Interface Lease Mechanism .................35
5.2.4. <mrbconsumer> ......................................38
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 ..........................................54
7. Multimodal MRB Implementations .................................55
8. Relative Merits of Query Mode, IAMM, and IUMM ..................56
9. Examples .......................................................58
9.1. Publish Example ...........................................58
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