A Network Virtualization Overlay Solution using EVPN
draft-ietf-bess-evpn-overlay-11

Document Type Active Internet-Draft (bess WG)
Last updated 2018-01-15 (latest revision 2018-01-12)
Replaces draft-sd-l2vpn-evpn-overlay
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication (wg milestone: Jun 2015 - Submit specification... )
Doc Shepherd Follow-up Underway
Document shepherd Thomas Morin
Shepherd write-up Show (last changed 2017-12-12)
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Responsible AD Alvaro Retana
Send notices to "Thomas Morin" <thomas.morin@orange.com>, aretana.ietf@gmail.com
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BESS Workgroup                                       A. Sajassi (Editor)
INTERNET-DRAFT                                                     Cisco
Intended Status: Standards Track                       J. Drake (Editor)
                                                                 Juniper
                                                                N. Bitar
                                                                   Nokia
                                                              R. Shekhar
                                                                 Juniper
                                                               J. Uttaro
                                                                    AT&T
                                                           W. Henderickx
                                                                   Nokia
                                                                        
Expires: July 12, 2018                                  January 12, 2018

         A Network Virtualization Overlay Solution using EVPN  
                   draft-ietf-bess-evpn-overlay-11  

Abstract

   This document specifies how Ethernet VPN (EVPN) can be used as a
   Network Virtualization Overlay (NVO) solution and explores the
   various tunnel encapsulation options over IP  and their impact on the
   EVPN control-plane and procedures. In particular, the following
   encapsulation options are analyzed: Virtual Extensible LAN (VXLAN),
   Network Virtualization using Generic Routing Encapsulation (NVGRE),
   and MPLS over Generic Routing Encapsulation (GRE). This specification
   is also applicable to Generic Network Virtualization Encapsulation
   (GENEVE) encapsulation; however, some incremental work is required
   which will be covered in a separate document. This document also
   specifies new multi-homing procedures for split-horizon filtering and
   mass-withdraw. It also specifies EVPN route constructions for
   VXLAN/NVGRE encapsulations and Autonomous System Boundary Router
   (ASBR) procedures for multi-homing of Network Virtualization (NV)
   Edge devices.  

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
   other groups may also distribute working documents as
   Internet-Drafts.

 

Sajassi-Drake et al.     Expires July 12, 2018                  [Page 1]
INTERNET DRAFT                EVPN Overlay              January 12, 2018

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   The list of current Internet-Drafts can be accessed at
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Copyright and License 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
   (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  Requirements Notation and Conventions . . . . . . . . . . . . .  5
   3  Terminology . . . . . . . . . . . . . . . . . . . . . . . . . .  5
   4 EVPN Features  . . . . . . . . . . . . . . . . . . . . . . . . .  6
   5 Encapsulation Options for EVPN Overlays  . . . . . . . . . . . .  8
     5.1 VXLAN/NVGRE Encapsulation  . . . . . . . . . . . . . . . . .  8
       5.1.1 Virtual Identifiers Scope  . . . . . . . . . . . . . . .  9
         5.1.1.1 Data Center Interconnect with Gateway  . . . . . . .  9
         5.1.1.2 Data Center Interconnect without Gateway . . . . . .  9
       5.1.2 Virtual Identifiers to EVI Mapping . . . . . . . . . . . 10
         5.1.2.1 Auto Derivation of RT  . . . . . . . . . . . . . . . 11
       5.1.3  Constructing EVPN BGP Routes  . . . . . . . . . . . . . 13
     5.2 MPLS over GRE  . . . . . . . . . . . . . . . . . . . . . . . 14
   6  EVPN with Multiple Data Plane Encapsulations  . . . . . . . . . 15
   7  Single-Homing NVEs - NVE Residing in Hypervisor . . . . . . . . 15
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