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BGP MPLS-Based Ethernet VPN
RFC 7432

Document type: RFC - Proposed Standard (February 2015; No errata)
Document stream: IETF
Last updated: 2015-02-18
Other versions: plain text, pdf, html

IETF State: Submitted to IESG for Publication Dec 2014
Consensus: Yes
Document shepherd: Giles Heron
Shepherd Write-Up: Last changed 2014-07-15

IESG State: RFC 7432 (Proposed Standard)
IANA Action State: RFC-Ed-Ack
Responsible AD: Adrian Farrel
Send notices to: l2vpn-chairs@ietf.org, draft-ietf-l2vpn-evpn@ietf.org

Internet Engineering Task Force (IETF)                   A. Sajassi, Ed.
Request for Comments: 7432                                         Cisco
Category: Standards Track                                    R. Aggarwal
ISSN: 2070-1721                                                   Arktan
                                                                N. Bitar
                                                                 Verizon
                                                                A. Isaac
                                                               Bloomberg
                                                               J. Uttaro
                                                                    AT&T
                                                                J. Drake
                                                        Juniper Networks
                                                           W. Henderickx
                                                          Alcatel-Lucent
                                                           February 2015

                      BGP MPLS-Based Ethernet VPN

Abstract

   This document describes procedures for BGP MPLS-based Ethernet VPNs
   (EVPN).  The procedures described here meet the requirements
   specified in RFC 7209 -- "Requirements for Ethernet VPN (EVPN)".

Status of This Memo

   This is an Internet Standards Track document.

   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).  Further information on
   Internet Standards is available in 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/rfc7432.

Sajassi, et al.              Standards Track                    [Page 1]
RFC 7432               BGP MPLS-Based Ethernet VPN         February 2015

Copyright Notice

   Copyright (c) 2015 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 ....................................................4
   2. Specification of Requirements ...................................4
   3. Terminology .....................................................4
   4. BGP MPLS-Based EVPN Overview ....................................6
   5. Ethernet Segment ................................................7
   6. Ethernet Tag ID ................................................10
      6.1. VLAN-Based Service Interface ..............................11
      6.2. VLAN Bundle Service Interface .............................11
           6.2.1. Port-Based Service Interface .......................11
      6.3. VLAN-Aware Bundle Service Interface .......................11
           6.3.1. Port-Based VLAN-Aware Service Interface ............12
   7. BGP EVPN Routes ................................................13
      7.1. Ethernet Auto-discovery Route .............................14
      7.2. MAC/IP Advertisement Route ................................14
      7.3. Inclusive Multicast Ethernet Tag Route ....................15
      7.4. Ethernet Segment Route ....................................16
      7.5. ESI Label Extended Community ..............................16
      7.6. ES-Import Route Target ....................................17
      7.7. MAC Mobility Extended Community ...........................18
      7.8. Default Gateway Extended Community ........................18
      7.9. Route Distinguisher Assignment per EVI ....................18
      7.10. Route Targets ............................................19
           7.10.1. Auto-derivation from the Ethernet Tag ID ..........19
   8. Multihoming Functions ..........................................19
      8.1. Multihomed Ethernet Segment Auto-discovery ................19
           8.1.1. Constructing the Ethernet Segment Route ............19
      8.2. Fast Convergence ..........................................20
           8.2.1. Constructing Ethernet A-D per Ethernet

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