Usage and Applicability of BGP MPLS-Based Ethernet VPN
RFC 8388

Document Type RFC - Informational (May 2018; No errata)
Last updated 2018-05-17
Replaces draft-rp-l2vpn-evpn-usage
Stream IETF
Formats plain text pdf html bibtex
Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Martin Vigoureux
Shepherd write-up Show (last changed 2017-08-28)
IESG IESG state RFC 8388 (Informational)
Consensus Boilerplate Yes
Telechat date
Responsible AD Alvaro Retana
Send notices to aretana.ietf@gmail.com
IANA IANA review state IANA OK - No Actions Needed
IANA action state No IC
Internet Engineering Task Force (IETF)                   J. Rabadan, Ed.
Request for Comments: 8388                               S. Palislamovic
Category: Informational                                    W. Henderickx
ISSN: 2070-1721                                                    Nokia
                                                              A. Sajassi
                                                                   Cisco
                                                               J. Uttaro
                                                                    AT&T
                                                                May 2018

         Usage and Applicability of BGP MPLS-Based Ethernet VPN

Abstract

   This document discusses the usage and applicability of BGP MPLS-based
   Ethernet VPN (EVPN) in a simple and fairly common deployment
   scenario.  The different EVPN procedures are explained in the example
   scenario along with the benefits and trade-offs of each option.  This
   document is intended to provide a simplified guide for the deployment
   of EVPN networks.

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 candidates for any level of Internet
   Standard; see Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   https://www.rfc-editor.org/info/rfc8388.

Rabadan, et al.               Informational                     [Page 1]
RFC 8388               BGP MPLS-Based Ethernet VPN              May 2018

Copyright Notice

   Copyright (c) 2018 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
   (https://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 . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Use Case Scenario Description and Requirements  . . . . . . .   5
     3.1.  Service Requirements  . . . . . . . . . . . . . . . . . .   5
     3.2.  Why EVPN Is Chosen to Address This Use Case . . . . . . .   7
   4.  Provisioning Model  . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  Common Provisioning Tasks . . . . . . . . . . . . . . . .   8
       4.1.1.  Non-Service-Specific Parameters . . . . . . . . . . .   8
       4.1.2.  Service-Specific Parameters . . . . . . . . . . . . .   9
     4.2.  Service-Interface-Dependent Provisioning Tasks  . . . . .   9
       4.2.1.  VLAN-Based Service Interface EVI  . . . . . . . . . .  10
       4.2.2.  VLAN Bundle Service Interface EVI . . . . . . . . . .  10
       4.2.3.  VLAN-Aware Bundling Service Interface EVI . . . . . .  10
   5.  BGP EVPN NLRI Usage . . . . . . . . . . . . . . . . . . . . .  11
   6.  MAC-Based Forwarding Model Use Case . . . . . . . . . . . . .  11
     6.1.  EVPN Network Startup Procedures . . . . . . . . . . . . .  12
     6.2.  VLAN-Based Service Procedures . . . . . . . . . . . . . .  12
       6.2.1.  Service Startup Procedures  . . . . . . . . . . . . .  13
       6.2.2.  Packet Walk-Through . . . . . . . . . . . . . . . . .  13
     6.3.  VLAN Bundle Service Procedures  . . . . . . . . . . . . .  17
       6.3.1.  Service Startup Procedures  . . . . . . . . . . . . .  17
       6.3.2.  Packet Walk-Through . . . . . . . . . . . . . . . . .  18
     6.4.  VLAN-Aware Bundling Service Procedures  . . . . . . . . .  18
       6.4.1.  Service Startup Procedures  . . . . . . . . . . . . .  18
       6.4.2.  Packet Walk-Through . . . . . . . . . . . . . . . . .  19
   7.  MPLS-Based Forwarding Model Use Case  . . . . . . . . . . . .  20
     7.1.  Impact of MPLS-Based Forwarding on the EVPN Network
           Startup . . . . . . . . . . . . . . . . . . . . . . . . .  21
     7.2.  Impact of MPLS-Based Forwarding on the VLAN-Based Service
           Procedures  . . . . . . . . . . . . . . . . . . . . . . .  21

Rabadan, et al.               Informational                     [Page 2]
RFC 8388               BGP MPLS-Based Ethernet VPN              May 2018
Show full document text