MPLS Generic Associated Channel (G-ACh) Advertisement Protocol
RFC 7212
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Type |
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RFC - Proposed Standard
(June 2014; 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-fbb-mpls-gach-adv
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Stream |
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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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Loa Andersson
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Shepherd write-up |
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Show
(last changed 2012-12-14)
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| IESG |
IESG state |
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RFC 7212 (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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Adrian Farrel
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IESG note |
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Loa Andersson (loa@pi.nu) is the document shepherd
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Send notices to |
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(None)
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| IANA |
IANA review state |
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IANA - 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) D. Frost
Request for Comments: 7212 Blue Sun
Category: Standards Track S. Bryant
ISSN: 2070-1721 Cisco Systems
M. Bocci
Alcatel-Lucent
June 2014
MPLS Generic Associated Channel (G-ACh) Advertisement Protocol
Abstract
The MPLS Generic Associated Channel (G-ACh) provides an auxiliary
logical data channel associated with a Label Switched Path (LSP), a
pseudowire, or a section (link) over which a variety of protocols may
flow. These protocols are commonly used to provide Operations,
Administration, and Maintenance (OAM) mechanisms associated with the
primary data channel. This document specifies simple procedures by
which an endpoint of an LSP, pseudowire, or section may inform the
other endpoints of its capabilities and configuration parameters, or
other application-specific information. This information may then be
used by the receiver to validate or adjust its local configuration,
and by the network operator for diagnostic purposes.
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/rfc7212.
Frost, et al. Standards Track [Page 1]
RFC 7212 MPLS G-ACh Advertisement Protocol June 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
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.
Frost, et al. Standards Track [Page 2]
RFC 7212 MPLS G-ACh Advertisement Protocol June 2014
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Motivation . . . . . . . . . . . . . . . . . . . . . . . 4
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 5
1.3. Requirements Language . . . . . . . . . . . . . . . . . . 6
2. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3. Message Format . . . . . . . . . . . . . . . . . . . . . . . 7
3.1. GAP Message Format . . . . . . . . . . . . . . . . . . . 8
3.2. Applications Data Block . . . . . . . . . . . . . . . . . 9
3.3. TLV Object Format . . . . . . . . . . . . . . . . . . . . 10
4. G-ACh Advertisement Protocol TLVs . . . . . . . . . . . . . . 10
4.1. Source Address TLV . . . . . . . . . . . . . . . . . . . 11
4.2. GAP Request TLV . . . . . . . . . . . . . . . . . . . . . 11
4.3. GAP Flush TLV . . . . . . . . . . . . . . . . . . . . . . 12
4.4. GAP Suppress TLV . . . . . . . . . . . . . . . . . . . . 13
4.5. GAP Authentication TLV . . . . . . . . . . . . . . . . . 14
5. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1. Message Transmission . . . . . . . . . . . . . . . . . . 14
5.2. Message Reception . . . . . . . . . . . . . . . . . . . . 15
6. Message Authentication . . . . . . . . . . . . . . . . . . . 16
6.1. Authentication Key Identifiers . . . . . . . . . . . . . 16
6.2. Authentication Process . . . . . . . . . . . . . . . . . 17
6.3. MAC Computation . . . . . . . . . . . . . . . . . . . . . 18
7. Link-Layer Considerations . . . . . . . . . . . . . . . . . . 18
8. Manageability Considerations . . . . . . . . . . . . . . . . 19
9. Security Considerations . . . . . . . . . . . . . . . . . . . 19
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 20
10.1. Associated Channel Type Allocation . . . . . . . . . . . 20
10.2. Allocation of Address Family Numbers . . . . . . . . . . 20
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