Redundancy provisioning for VPLS Inter-domain
draft-ietf-l2vpn-vpls-inter-domain-redundancy-03

The information below is for an old version of the document
Document Type Active Internet-Draft (l2vpn WG)
Authors Zhihua Liu  , Lizhong Jin  , Ran Chen  , Dennis Cai  , Samer Salam 
Last updated 2013-12-19
Replaces draft-liu-l2vpn-vpls-inter-domain-redundancy
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Networking Working Group                                          Z. Liu
Internet-Draft                                             China Telecom
Intended status: BCP                                              L. Jin
Expires: June 22, 2014
                                                                 R. Chen
                                                         ZTE Corporation
                                                                  D. Cai
                                                                S. Salam
                                                                   Cisco
                                                       December 19, 2013

             Redundancy provisioning for VPLS Inter-domain
            draft-ietf-l2vpn-vpls-inter-domain-redundancy-03

Abstract

   In many VPLS deployments based on RFC4762, inter-domain connectivity
   has been deployed without node redundancy, or with node redundancy in
   a single domain.  This document describes a solution for inter-domain
   VPLS based on RFC4762 with node and link redundancy in both domains.

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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   Internet-Drafts are draft documents valid for a maximum of six months
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   This Internet-Draft will expire on June 22, 2014.

Copyright Notice

   Copyright (c) 2013 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

Liu, et al.               Expires June 22, 2014                 [Page 1]
Internet-Draft      Redundancy for VPLS Inter-domain       December 2013

   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 . . . . . . . . . . . . . . . 3
   3.  Motivation  . . . . . . . . . . . . . . . . . . . . . . . . . . 3
   4.  Network Use Case  . . . . . . . . . . . . . . . . . . . . . . . 4
   5.  PW redundancy application procedure for inter-domain
       redundancy  . . . . . . . . . . . . . . . . . . . . . . . . . . 5
     5.1.  ICCP switchover condition . . . . . . . . . . . . . . . . . 6
       5.1.1.  Inter-domain PW failure . . . . . . . . . . . . . . . . 6
       5.1.2.  PE node isolation . . . . . . . . . . . . . . . . . . . 6
       5.1.3.  PE node failure . . . . . . . . . . . . . . . . . . . . 6
     5.2.  Inter-domain redundancy with two-PWs  . . . . . . . . . . . 6
     5.3.  Inter-domain redundancy with four-PWs . . . . . . . . . . . 6
   6.  Security Considerations . . . . . . . . . . . . . . . . . . . . 8
   7.  IANA Consideration  . . . . . . . . . . . . . . . . . . . . . . 8
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 8
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 9
     9.1.  Normative references  . . . . . . . . . . . . . . . . . . . 9
     9.2.  Informative references  . . . . . . . . . . . . . . . . . . 9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . . . 9

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1.  Introduction

   In many VPLS deployments based on [RFC4762], inter-domain
   connectivity has been deployed without node redundancy, or with node
   redundancy in a single domain.  This document describes a solution
   for inter-domain VPLS based on [RFC4762] with node and link
   redundancy in both domains.  The domain in this document refers to
   AS, or other administrative domains.

2.  Conventions used in this document

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

3.  Motivation

   Inter-AS VPLS offerings are widely deployed in service provider
   networks today.  Typically, the ASBRs and associated physical links
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