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PBB-EVPN
draft-ietf-l2vpn-pbb-evpn-07

Document type: Active Internet-Draft (l2vpn WG)
Document stream: IETF
Last updated: 2014-06-19
Intended RFC status: Unknown
Other versions: plain text, pdf, html

IETF State: WG Document
Document shepherd: No shepherd assigned

IESG State: I-D Exists
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Internet Working Group                                  Ali Sajassi, Ed.
Internet Draft                                               Samer Salam
Category: Standards Track                                          Cisco
                                                             Nabil Bitar
                                                                 Verizon
                                                            Aldrin Isaac
                                                               Bloomberg
                                                          Wim Henderickx
                                                          Alcatel-Lucent
                                                             Lizhong Jin
                                                                     ZTE
Expires: December 18, 2014                                 June 18, 2014

                               PBB-EVPN 
                      draft-ietf-l2vpn-pbb-evpn-07

Status of this Memo

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
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   Internet-Drafts.

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Copyright and License 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
 

Sajassi et al.         Expires December 18, 2014                [Page 1]
INTERNET DRAFT                  PBB-EVPN                   June 18, 2014

   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.

Abstract

   This document discusses how Ethernet Provider Backbone Bridging
   [802.1ah] can be combined with EVPN in order to reduce the number of
   BGP MAC advertisement routes by aggregating Customer/Client MAC (C-
   MAC) addresses via Provider Backbone MAC address (B-MAC), provide
   client MAC address mobility using C-MAC aggregation and B-MAC sub-
   netting, confine the scope of C-MAC learning to only active flows,
   offer per site policies and avoid C-MAC address flushing on topology
   changes. The combined solution is referred to as PBB-EVPN.

Conventions

   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 RFC 2119. 

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Contributors . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   4.  Requirements . . . . . . . . . . . . . . . . . . . . . . . . .  5
     4.1.  MAC Advertisement Route Scalability  . . . . . . . . . . .  5
     4.2.  C-MAC Mobility with MAC Summarization  . . . . . . . . . .  5
     4.3.  C-MAC Address Learning and Confinement . . . . . . . . . .  5
     4.4.  Per Site Policy Support  . . . . . . . . . . . . . . . . .  6
     4.5.  Avoiding C-MAC Address Flushing  . . . . . . . . . . . . .  6
   5.  Solution Overview  . . . . . . . . . . . . . . . . . . . . . .  6
   6.  BGP Encoding . . . . . . . . . . . . . . . . . . . . . . . . .  7
     6.1.  Ethernet Auto-Discovery Route  . . . . . . . . . . . . . .  7
     6.2.  BGP MAC Advertisement Route  . . . . . . . . . . . . . . .  8
     6.3.  Inclusive Multicast Ethernet Tag Route . . . . . . . . . .  8
     6.4.  Ethernet Segment Route . . . . . . . . . . . . . . . . . .  8
     6.5.  ESI Label Extended Community . . . . . . . . . . . . . . .  9
     6.6.  ES-Import Route Target . . . . . . . . . . . . . . . . . .  9
     6.7.  MAC Mobility Extended Community  . . . . . . . . . . . . .  9

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