Pre-standard Linear Protection Switching in MPLS-TP
draft-zulr-mpls-tp-linear-protection-switching-11

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Last updated 2014-02-26 (latest revision 2014-02-12)
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MPLS Working Group                                  H. van Helvoort, Ed.
Internet-Draft                                       Huawei Technologies
Intended status: Informational                              J. Ryoo, Ed.
Expires: August 17, 2014                                            ETRI
                                                                H. Zhang
                                                     Huawei Technologies
                                                                F. Huang
                                                                 Philips
                                                                   H. Li
                                                            China Mobile
                                                         A. D'Alessandro
                                                          Telecom Italia
                                                       February 13, 2014

          Pre-standard Linear Protection Switching in MPLS-TP
         draft-zulr-mpls-tp-linear-protection-switching-11.txt

Abstract

   The IETF Standards Track solution for MPLS Transport Profile (MPLS-
   TP) Linear Protection is provided in RFC 6378, draft-ietf-mpls-psc-
   updates and draft-ietf-mpls-tp-psc-itu.

   This document describes the pre-standard implementation of MPLS-TP
   Linear Protection that has been deployed by several network operators
   using equipment from multiple vendors.  At the time of publication
   these pre-standard implementations were still in operation carrying
   live traffic.

   The specified mechanism supports 1+1 unidirectional/bidirectional
   protection switching and 1:1 bidirectional protection switching.  It
   is purely supported by MPLS-TP data plane, and can work without any
   control plane.

   [Editor's note] The followings are to be included in "Status of
   Memo":

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This is a contribution to the RFC Series, independently of any other
   RFC stream.  The RFC Editor has chosen to publish this document at
   its discretion and makes no statement about its value for
   implementation or deployment.  Documents approved for publication by
   the RFC Editor are not a candidate for any level of Internet
   Standard; see Section 2 of RFC 5741.

van Helvoort, et al.     Expires August 17, 2014                [Page 1]
Internet-Draft  Pre-standard MPLS-TP Lin. Prot. Switching  February 2014

   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/rfcxxxx.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on August 17, 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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Conventions Used in This Document . . . . . . . . . . . . . .   4
   3.  Acronyms  . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  Linear protection switching overview  . . . . . . . . . . . .   5
     4.1.  Protection architecture types . . . . . . . . . . . . . .   5
       4.1.1.  1+1 architecture  . . . . . . . . . . . . . . . . . .   6
       4.1.2.  1:1 architecture  . . . . . . . . . . . . . . . . . .   6
       4.1.3.  1:n architecture  . . . . . . . . . . . . . . . . . .   6
     4.2.  Protection switching type . . . . . . . . . . . . . . . .   6
     4.3.  Protection operation type . . . . . . . . . . . . . . . .   7

van Helvoort, et al.     Expires August 17, 2014                [Page 2]
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