Redundancy Mechanism for Inter-domain VPLS Service
draft-ietf-l2vpn-vpls-inter-domain-redundancy-06

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 2014-05-15 (latest revision 2014-04-24)
Replaces draft-liu-l2vpn-vpls-inter-domain-redundancy
Stream IETF
Intended RFC status Proposed Standard
Formats pdf htmlized (tools) htmlized bibtex
Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Giles Heron
Shepherd write-up Show (last changed 2014-05-14)
IESG IESG state Approved-announcement to be sent::Revised I-D Needed
Consensus Boilerplate Yes
Telechat date
Responsible AD Adrian Farrel
Send notices to l2vpn-chairs@tools.ietf.org, draft-ietf-l2vpn-vpls-inter-domain-redundancy@tools.ietf.org
IANA IANA review state IANA OK - No Actions Needed
Networking Working Group                                          Z. Liu
Internet-Draft                                             China Telecom
Intended status: Standards Track                                  L. Jin
Expires: October 26, 2014
                                                                 R. Chen
                                                         ZTE Corporation
                                                                  D. Cai
                                                                S. Salam
                                                                   Cisco
                                                          April 24, 2014

           Redundancy Mechanism for Inter-domain VPLS Service
            draft-ietf-l2vpn-vpls-inter-domain-redundancy-06

Abstract

   In many existing Virtual Private LAN Service (VPLS) inter-domain
   deployments (based on RFC 4762), pseudowire (PW) connectivity offers
   no node redundancy, or offers node redundancy only with a single
   domain.  This deployment approach incurs a high risk of service
   interruption, since at least one domain will not offer PW node
   redundancy.  This document describes an inter-domain VPLS solution
   that provides PW node redundancy across 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
   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 26, 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

Liu, et al.             Expires October 26, 2014                [Page 1]
Internet-Draft      Redundancy for VPLS Inter-domain          April 2014

   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  . . . . . . . . . . . . . .  3
   3.  Motivation . . . . . . . . . . . . . . . . . . . . . . . . . .  3
   4.  Network Use Case . . . . . . . . . . . . . . . . . . . . . . .  4
   5.  PW redundancy application procedure for inter-domain
       redundancy . . . . . . . . . . . . . . . . . . . . . . . . . .  6
     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  . . . . . . . . . .  7
   6.  Management Considerations  . . . . . . . . . . . . . . . . . .  9
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . .  9
   8.  IANA Consideration . . . . . . . . . . . . . . . . . . . . . .  9
   9.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .  9
   10. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 10
   11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 10
     11.1. Normative references . . . . . . . . . . . . . . . . . . . 10
     11.2. Informative references . . . . . . . . . . . . . . . . . . 10
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 11

Liu, et al.             Expires October 26, 2014                [Page 2]
Internet-Draft      Redundancy for VPLS Inter-domain          April 2014

1.  Introduction

   In many existing Virtual Private LAN Service (VPLS) deployments based
   on [RFC4762], pseudowire (PW) connectivity offers no node redundancy,
   or offers node redundancy only with a single domain.  This deployment
   approach incurs a high risk of service interruption, since at least
   one domain will not offer PW node redundancy.  This document
   describes an inter-domain VPLS solution that provides PW node
   redundancy across domains.  The redundancy mechanism will provide
Show full document text