MPLS-TP protection for interconnected rings
draft-liu-mpls-tp-interconnected-ring-protection-01

The information below is for an old version of the document
Document Type Active Internet-Draft (individual)
Last updated 2012-04-26
Stream (None)
Intended RFC status (None)
Formats plain text pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
MPLS Working Group                                                G. Liu
Internet-Draft                                           ZTE Corporation
Intended status: Informational                             Y. Weingarten
Expires: October 28, 2012                                 April 26, 2012

              MPLS-TP protection for interconnected rings
          draft-liu-mpls-tp-interconnected-ring-protection-01

Abstract

   According to the ring protection Requirements in RFC 5654,
   Requirement 93 : When a network is constructed from interconnected
   rings, MPLS-TP MUST support recovery mechanisms that protect user
   data that traverses more than one ring.  This includes the
   possibility of failure of the ring-interconnect nodes and links,so
   this document will describle all kinds of interconnected ring
   Scenarios and several protection solutions for recovery the failure
   of the ring-interconnect nodes and Links. .

   This document is a product of a joint Internet Task Force(IETF) /
   International Telecommunications Union Telecommunications
   Standardization Sector (ITU-T) effort to include an MPLS Transport
   Profile within the IETF MPLS and PWE3 architectures to support the
   capabilities and functionalities of a packet transport network as
   defined by the ITU-T.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.  This document may not be modified,
   and derivative works of it may not be created, and it may not be
   published except as an Internet-Draft.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   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 October 28, 2012.

Copyright Notice

Liu & Weingarten        Expires October 28, 2012                [Page 1]
Internet-Draft             MPLS-TP protection                 April 2012

   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.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Conventions used in this document  . . . . . . . . . . . . . .  7
   3.  recovery mechanisms  . . . . . . . . . . . . . . . . . . . . .  8
     3.1.  recovery mechanism for Dual-node interconnected-ring . . .  8
     3.2.  recovery mechanism for Chained interconnected-ring . . . .  8
     3.3.  recovery mechanism for Dual-node and Single-node mixed
           interconnected-ring  . . . . . . . . . . . . . . . . . . .  9
     3.4.  recovery mechanism for Dual-node and Chained mixed
           interconnected-ring  . . . . . . . . . . . . . . . . . . .  9
     3.5.  recovery mechanism for Single-node and Chained mixed
           interconnected-ring  . . . . . . . . . . . . . . . . . . .  9
     3.6.  recovery mechanism for Dual-node ,Single-node and
           Chained mixed interconnected-ring  . . . . . . . . . . . .  9
   4.  Security Considerations  . . . . . . . . . . . . . . . . . . .  9
   5.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  9
   6.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . .  9
   7.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 10
     7.1.  Normative References . . . . . . . . . . . . . . . . . . . 10
     7.2.  Informative References . . . . . . . . . . . . . . . . . . 10
     7.3.  URL References . . . . . . . . . . . . . . . . . . . . . . 10
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 10

Liu & Weingarten        Expires October 28, 2012                [Page 2]
Internet-Draft             MPLS-TP protection                 April 2012

1.  Introduction

   This document describles different interconnected ring scenarios and
   several protection solutions to protect against the failure of the
   ring-interconnect nodes and links. there are mainly three common
   interconnection scenarios that we will address in this document:

   Dual-node interconnection - when the interconnected rings are
Show full document text