Virtual Circuit Connectivity Verification (VCCV) Capability Advertisement for MPLS Transport Profile (MPLS-TP)
RFC 7189
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Type |
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RFC - Proposed Standard
(March 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-mirsky-mpls-tp-cv-adv
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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
Jun 2014
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Document shepherd |
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Andrew Malis
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Shepherd write-up |
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Show
(last changed 2013-12-23)
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| IESG |
IESG state |
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RFC 7189 (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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Send notices to |
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(None)
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| IANA |
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) G. Mirsky
Request for Comments: 7189 Ericsson
Category: Standards Track March 2014
ISSN: 2070-1721
Virtual Circuit Connectivity Verification (VCCV)
Capability Advertisement for MPLS Transport Profile (MPLS-TP)
Abstract
This document specifies how signaling and selection processes for
Pseudowire (PW) Virtual Circuit Connectivity Verification (VCCV) are
modified to ensure backward compatibility and allow use of proactive
Connectivity Verification (CV), Continuity Check (CC), and Remote
Defect Indication (RDI) over MPLS Transport Profile (MPLS-TP) PWs.
This document introduces four new CV types and, to accommodate them,
a new VCCV Extended CV parameter for PW Interface Parameters Sub-TLV
is defined.
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/rfc7189.
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.
Mirsky Standards Track [Page 1]
RFC 7189 VCCV for MPLS-TP March 2014
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Conventions Used in This Document . . . . . . . . . . . . 2
1.1.1. Terminology . . . . . . . . . . . . . . . . . . . . . 2
1.1.2. Requirements Language . . . . . . . . . . . . . . . . 3
2. MPLS-TP CC-CV on Pseudowires . . . . . . . . . . . . . . . . 3
2.1. VCCV Extended CV Advertisement Sub-TLV . . . . . . . . . 3
2.2. MPLS-TP CC-CV Types . . . . . . . . . . . . . . . . . . . 3
2.3. MPLS-TP CC-CV Type Operation . . . . . . . . . . . . . . 4
2.4. CV Type Selection . . . . . . . . . . . . . . . . . . . . 4
3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
3.1. VCCV Extended CV Types . . . . . . . . . . . . . . . . . 5
4. Security Considerations . . . . . . . . . . . . . . . . . . . 6
5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 6
6. References . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.1. Normative References . . . . . . . . . . . . . . . . . . 6
6.2. Informative References . . . . . . . . . . . . . . . . . 7
1. Introduction
Proactive Connectivity Verification (CV), Continuity Check (CC), and
Remote Defect Indication (RDI) for the MPLS Transport Profile
[RFC6428] are applicable to all constructs of the MPLS-TP, including
pseudowires (PWs). If the control plane is used to operate and
manage PWs then the procedures defined in [RFC5085] and [RFC5885]
should be used to select the proper type of Control Channel and the
corresponding type of Connectivity Verification. This document
specifies how signaling and selection processes are modified to
ensure backward compatibility and allow use of proactive CV-CC-RDI
over MPLS-TP PWs.
1.1. Conventions Used in This Document
1.1.1. Terminology
BFD: Bidirectional Forwarding Detection
CC: Continuity Check
CV: Connectivity Verification
PE: Provider Edge
VCCV: Virtual Circuit Connectivity Verification
Mirsky Standards Track [Page 2]
RFC 7189 VCCV for MPLS-TP March 2014
1.1.2. Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
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