Applicability of EVPN to NVO3 Networks
draft-ietf-nvo3-evpn-applicability-02

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NVO3 Workgroup                                           J. Rabadan, Ed.
Internet Draft                                                  M. Bocci
Intended status: Informational                                     Nokia

                                                              S. Boutros
                                                                  VMware

                                                              A. Sajassi
                                                                   Cisco

Expires: January 9, 2020                                    July 8, 2019

                 Applicability of EVPN to NVO3 Networks
                 draft-ietf-nvo3-evpn-applicability-02

Abstract

   In NVO3 networks, Network Virtualization Edge (NVE) devices sit at
   the edge of the underlay network and provide Layer-2 and Layer-3
   connectivity among Tenant Systems (TSes) of the same tenant. The NVEs
   need to build and maintain mapping tables so that they can deliver
   encapsulated packets to their intended destination NVE(s). While
   there are different options to create and disseminate the mapping
   table entries, NVEs may exchange that information directly among
   themselves via a control-plane protocol, such as EVPN. EVPN provides
   an efficient, flexible and unified control-plane option that can be
   used for Layer-2 and Layer-3 Virtual Network (VN) service
   connectivity. This document describes the applicability of EVPN to
   NVO3 networks and how EVPN solves the challenges in those networks.

Status of this Memo

   This Internet-Draft is submitted 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.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."
 

Rabadan et al.          Expires January 9, 2020                 [Page 1]
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   This Internet-Draft will expire on January 9, 2020.

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Table of Contents

   1. Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2. EVPN and NVO3 Terminology . . . . . . . . . . . . . . . . . . .  3
   3. Why Is EVPN Needed In NVO3 Networks?  . . . . . . . . . . . . .  6
   4. Applicability of EVPN to NVO3 Networks  . . . . . . . . . . . .  8
     4.1. EVPN Route Types used in NVO3 Networks  . . . . . . . . . .  8
     4.2. EVPN Basic Applicability For Layer-2 Services . . . . . . .  9
       4.2.1. Auto-Discovery and Auto-Provisioning of ES,
              Multi-Homing PEs and NVE services . . . . . . . . . . . 10
       4.2.2. Remote NVE Auto-Discovery . . . . . . . . . . . . . . . 11
       4.2.3. Distribution Of Tenant MAC and IP Information . . . . . 12
     4.3. EVPN Basic Applicability for Layer-3 Services . . . . . . . 13
     4.4. EVPN as a Control Plane for NVO3 Encapsulations and
          GENEVE  . . . . . . . . . . . . . . . . . . . . . . . . . . 15
     4.5. EVPN OAM and application to NVO3  . . . . . . . . . . . . . 16
     4.6. EVPN as the control plane for NVO3 security . . . . . . . . 16
     4.7. Advanced EVPN Features For NVO3 Networks  . . . . . . . . . 16
       4.7.1. Virtual Machine (VM) Mobility . . . . . . . . . . . . . 16
       4.7.2. MAC Protection, Duplication Detection and Loop 
              Protection  . . . . . . . . . . . . . . . . . . . . . . 17
       4.7.3. Reduction/Optimization of BUM Traffic In Layer-2 
              Services  . . . . . . . . . . . . . . . . . . . . . . . 17
 

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