Usage of the RSVP ASSOCIATION Object
RFC 6689
|
| Document |
Type |
|
RFC - Informational
(July 2012; No errata)
|
|
Last updated |
|
2015-10-14
|
|
Replaces |
|
draft-berger-ccamp-assoc-info
|
|
Stream |
|
IETF
|
|
Formats |
|
plain text
pdf
html
bibtex
|
| Stream |
WG state
|
|
WG Document
|
|
Document shepherd |
|
Deborah Brungard
|
| IESG |
IESG state |
|
RFC 6689 (Informational)
|
|
Consensus Boilerplate |
|
Unknown
|
|
Telechat date |
|
|
|
Responsible AD |
|
Adrian Farrel
|
|
IESG note |
|
Deborah Brungard (dbrungard@att.com) is the Document Shepherd.
|
|
Send notices to |
|
(None)
|
Internet Engineering Task Force (IETF) L. Berger
Request for Comments: 6689 LabN
Category: Informational July 2012
ISSN: 2070-1721
Usage of the RSVP ASSOCIATION Object
Abstract
The Resource Reservation Protocol (RSVP) ASSOCIATION object is
defined in the context of GMPLS-controlled label switched paths
(LSPs). In this context, the object is used to associate recovery
LSPs with the LSP they are protecting. This document reviews how the
association is to be provided in the context of GMPLS recovery. No
new procedures or mechanisms are defined by this document, and it is
strictly informative in nature.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
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). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see 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/rfc6689.
Copyright Notice
Copyright (c) 2012 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.
Berger Informational [Page 1]
RFC 6689 RSVP ASSOCIATION Object Usage July 2012
Table of Contents
1. Introduction ....................................................2
2. Background ......................................................2
2.1. LSP Association ............................................3
2.2. End-to-End Recovery LSP Association ........................4
2.3. Segment Recovery LSP Association ...........................7
2.4. Resource Sharing LSP Association ...........................8
3. Association of GMPLS Recovery LSPs ..............................8
4. Security Considerations ........................................10
5. Acknowledgments ................................................10
6. References .....................................................10
6.1. Normative References ......................................10
6.2. Informative References ....................................11
1. Introduction
End-to-end and segment recovery are defined for GMPLS-controlled
label switched paths (LSPs) in [RFC4872] and [RFC4873], respectively.
Both definitions use the ASSOCIATION object to associate recovery
LSPs with the LSP they are protecting. This document provides
additional narrative on how such associations are to be identified.
This document does not define any new procedures or mechanisms and is
strictly informative in nature.
It may not be immediately obvious to the informed reader why this
document is necessary; however, questions were repeatedly raised in
the Common Control and Measurement Plane (CCAMP) working group on the
proper interpretation of the ASSOCIATION object in the context of
end-to-end and segment recovery, and the working group agreed that
this document should be produced in order to close the matter. This
document formalizes the explanation provided in an e-mail to the
working group authored by Adrian Farrel, see [AF-EMAIL]. This
document in no way modifies the normative definitions of end-to-end
and segment recovery, see [RFC4872] or [RFC4873].
2. Background
This section reviews the definition of LSP association in the
contexts of end-to-end and segment recovery as defined in [RFC4872]
and [RFC4873]. This section merely reiterates what has been defined;
if differences exist between this text and [RFC4872] or [RFC4873],
the earlier RFCs provide the authoritative text.
Berger Informational [Page 2]
RFC 6689 RSVP ASSOCIATION Object Usage July 2012
Show full document text