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Using a Generic Associated Channel Label as a Virtual Circuit Connectivity Verification Channel Indicator (RFC7708)

IP.com Disclosure Number: IPCOM000245063D
Original Publication Date: 2015-Nov-01
Included in the Prior Art Database: 2016-Feb-07
Document File: 18 page(s) / 19K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

T. Nadeau: AUTHOR [+3]

Abstract

The Virtual Circuit Connectivity Verification (VCCV) protocol is specified in RFC 5085 [RFC5085]. This document specifies a new VCCV control channel (VCCV CC) type to be used with pseudowires (PWs) carried over an MPLS network that do not use the PW Control Word (CW) [RFC4385]. This new VCCV CC type uses the Generic Associated Channel Label (GAL) [RFC5586] to distinguish VCCV packets from packets carrying user data. This new VCCV CC type provides compatibility with the method of MPLS Label Switched Path (LSP) Operations, Administration, and Maintenance (OAM) message identification, as used in MPLS Transport Profile (MPLS-TP) networks [RFC5921].

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Internet Engineering Task Force (IETF)                         T. Nadeau Request for Comments: 7708                                       Brocade Category: Standards Track                                     L. Martini ISSN: 2070-1721                                                S. Bryant                                                            Cisco Systems                                                            November 2015

                 Using a Generic Associated Channel Label     as a Virtual Circuit Connectivity Verification Channel Indicator

Abstract

   The Virtual Circuit Connectivity Verification (VCCV) protocol    specified in RFC 5085 provides a control channel (CC) that is    associated with a pseudowire (PW).  This document specifies an    additional VCCV control channel type to be used with pseudowires that    do not use the PW Control Word and that are carried over an MPLS    network.  This new VCCV CC type uses the Generic Associated Channel    Label defined in RFC 5586 to distinguish VCCV packets from packets    carrying user data.  This new VCCV CC type introduces compatibility    with the method of MPLS Label Switched Path Operations,    Administration, and Maintenance (OAM) identification, particularly in    MPLS Transport Profile (MPLS-TP) networks (RFC 5921).

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/rfc7708.

Nadeau, et al.               Standards Track                    [Page 1]
 RFC 7708                  GAL as a VCCV Channel            November 2015

 Copyright Notice

   Copyright (c) 2015 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...