A SIP Usage for REsource LOcation And Discovery (RELOAD)
RFC 7904
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Type |
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RFC - Proposed Standard
(October 2016; No errata)
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Last updated |
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2016-10-17
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IETF
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plain text
pdf
htmlized
bibtex
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Reviews |
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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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Carlos Bernardos
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Shepherd write-up |
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Show
(last changed 2016-02-02)
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IESG state |
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RFC 7904 (Proposed Standard)
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Alissa Cooper
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Send notices to |
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(None)
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IANA review state |
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Version Changed - Review Needed
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IANA action state |
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RFC-Ed-Ack
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Internet Engineering Task Force (IETF) C. Jennings
Request for Comments: 7904 Cisco
Category: Standards Track B. Lowekamp
ISSN: 2070-1721 Skype
E. Rescorla
RTFM, Inc.
S. Baset
IBM
H. Schulzrinne
Columbia University
T. Schmidt, Ed.
HAW Hamburg
October 2016
A SIP Usage for REsource LOcation And Discovery (RELOAD)
Abstract
This document defines a SIP Usage for REsource LOcation And Discovery
(RELOAD). The SIP Usage provides the functionality of a SIP proxy or
registrar in a fully distributed system and includes a lookup service
for Address of Records (AORs) stored in the overlay. It also defines
Globally Routable User Agent URIs (GRUUs) that allow the
registrations to map an AOR to a specific node reachable through the
overlay. After such initial contact of a Peer, the RELOAD AppAttach
method is used to establish a direct connection between nodes through
which SIP messages are exchanged.
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 7841.
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/rfc7904.
Jennings, et al. Standards Track [Page 1]
RFC 7904 RELOAD SIP Usage October 2016
Copyright Notice
Copyright (c) 2016 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.
This document may contain material from IETF Documents or IETF
Contributions published or made publicly available before November
10, 2008. The person(s) controlling the copyright in some of this
material may not have granted the IETF Trust the right to allow
modifications of such material outside the IETF Standards Process.
Without obtaining an adequate license from the person(s) controlling
the copyright in such materials, this document may not be modified
outside the IETF Standards Process, and derivative works of it may
not be created outside the IETF Standards Process, except to format
it for publication as an RFC or to translate it into languages other
than English.
Jennings, et al. Standards Track [Page 2]
RFC 7904 RELOAD SIP Usage October 2016
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 6
3. Registering AORs in the Overlay . . . . . . . . . . . . . . . 6
3.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2. Data Structure . . . . . . . . . . . . . . . . . . . . . 7
3.3. Access Control . . . . . . . . . . . . . . . . . . . . . 9
3.4. Overlay Configuration Document Extension . . . . . . . . 10
4. Looking Up an AOR . . . . . . . . . . . . . . . . . . . . . . 11
4.1. Finding a Route to an AOR . . . . . . . . . . . . . . . . 11
4.2. Resolving an AOR . . . . . . . . . . . . . . . . . . . . 12
5. Forming a Direct Connection . . . . . . . . . . . . . . . . . 12
5.1. Setting Up a Connection . . . . . . . . . . . . . . . . . 12
5.2. Keeping a Connection Alive . . . . . . . . . . . . . . . 13
6. Using GRUUs . . . . . . . . . . . . . . . . . . . . . . . . . 13
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