Virtual Private LAN Service (VPLS) Interoperability with Provider Backbone Bridges
RFC 7080

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Internet Engineering Task Force (IETF)                        A. Sajassi
Request for Comments: 7080                                      S. Salam
Category: Informational                                            Cisco
ISSN: 2070-1721                                                 N. Bitar
                                                                 Verizon
                                                                F. Balus
                                                          Nuage Networks
                                                           December 2013

          Virtual Private LAN Service (VPLS) Interoperability
                     with Provider Backbone Bridges

Abstract

   The scalability of Hierarchical Virtual Private LAN Service (H-VPLS)
   with Ethernet access networks (RFC 4762) can be improved by
   incorporating Provider Backbone Bridge functionality in the VPLS
   access.  Provider Backbone Bridging has been standardized as IEEE
   802.1ah-2008.  It aims to improve the scalability of Media Access
   Control (MAC) addresses and service instances in Provider Ethernet
   networks.  This document describes different interoperability
   scenarios where Provider Backbone Bridge functionality is used in
   H-VPLS with Ethernet or MPLS access network to attain better
   scalability in terms of number of customer MAC addresses and number
   of service instances.  The document also describes the scenarios and
   the mechanisms for incorporating Provider Backbone Bridge
   functionality within H-VPLS with existing Ethernet access and
   interoperability among them.  Furthermore, the document discusses the
   migration mechanisms and scenarios by which Provider Backbone Bridge
   functionality can be incorporated into H-VPLS with existing MPLS
   access.

Status of This Memo

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

   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).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see 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/rfc7080.

Sajassi, et al.               Informational                     [Page 1]
RFC 7080             VPLS Interoperability with PBB        December 2013

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
   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. Terminology .....................................................3
   3. Applicability ...................................................5
   4. H-VPLS with Homogeneous PBBN Access .............................6
      4.1. Service Interfaces and Interworking Options ................8
      4.2. H-VPLS with PBBN Access: Type I Service Interface .........10
      4.3. H-VPLS with PBBN Access: Type II Service Interface ........11
   5. H-VPLS with Mixed PBBN Access and PBN Access ...................14
      5.1. H-VPLS with Mixed PBBN and PBN Access: Modified PBN PE ....15
      5.2. H-VPLS with Mixed PBBN and PBN Access: Regular PBN PE .....16
   6. H-VPLS with MPLS Access ........................................17
      6.1. H-VPLS with MPLS Access: PBB U-PE .........................17
      6.2. H-VPLS with MPLS Access: PBB N-PE .........................19
   7. H-VPLS with MPLS Access: PBB Migration Scenarios ...............21
      7.1. 802.1ad Service Frames over VPLS Core .....................21
      7.2. PBB Service Frames over VPLS Core .........................22
      7.3. Mixed 802.1ad and PBB over VPLS Core ......................23
   8. Acknowledgments ................................................24
   9. Security Considerations ........................................24
   10. References ....................................................24
      10.1. Normative References .....................................24
      10.2. Informative References ...................................25

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