EVPN Interoperability Modes
draft-krattiger-evpn-modes-interop-01

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INTERNET-DRAFT                                         L. Krattiger, Ed.
Intended Status: Informational                           A. Sajassi, Ed.
Expires: July 23, 2020                                         S. Thoria
                                                           Cisco Systems

                                                              J. Rabadan
                                                                   Nokia

                                                                J. Drake
                                                                 Juniper

                                                        January 21, 2020

                      EVPN Interoperability Modes 
                 draft-krattiger-evpn-modes-interop-01

Abstract

   Ethernet VPN (EVPN) provides different functional modes in the area
   of Service Interface, Integrated Route and Bridge (IRB) and IRB Core
   connectivity. This document specifies how the different EVPN
   functional modes and types can interoperate with each other. This
   document doesn't aim to redefine the existing functional modes but
   extend them for interoperability. 

Status of this Memo

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

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Krattiger, et al.        Expires July 23, 2020                  [Page 1]
INTERNET DRAFT        EVPN Interoperability Modes       January 21, 2020

   http://www.ietf.org/shadow.html

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1  Requirements Language . . . . . . . . . . . . . . . . . . .  3
   2.  Valid Combinations for Interoperability  . . . . . . . . . . .  3
   3.  Service Interface Interoperability . . . . . . . . . . . . . .  5
     3.1.  VLAN-Aware Bundle and VLAN-Based . . . . . . . . . . . . .  5
       3.1.1.  VLAN-Aware Bundle Service PE . . . . . . . . . . . . .  6
       3.1.2.  VLAN-Based Service PE  . . . . . . . . . . . . . . . .  7
     3.2. Service Interface Interop Mode of Operation . . . . . . . .  7
   4.  Interoperability for different IRB Types . . . . . . . . . . .  8
     4.1.  Asymmetric IRB and Symmetric IRB . . . . . . . . . . . . .  8
       4.1.1.  Asymmetric IRB PE  . . . . . . . . . . . . . . . . . . 10
       4.1.2.  Symmetric IRB PE . . . . . . . . . . . . . . . . . . . 10
     4.2. IRB Interop Mode of Operation . . . . . . . . . . . . . . . 11
   5.  Interoperability for different IRB Core Connectivity Modes . . 12
     5.1.  Interface-Less and Interface-Ful Unnumbered IRB  . . . . . 12
       5.1.1.  Interface-Less PE  . . . . . . . . . . . . . . . . . . 15
       5.1.2.  Interface-Ful Unnumbered IRB . . . . . . . . . . . . . 15
     5.2.  Tunnel Encapsulation Consideration . . . . . . . . . . . . 17
   6.  Security Considerations  . . . . . . . . . . . . . . . . . . . 17
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 17
   8.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 18
     8.1.  Normative References . . . . . . . . . . . . . . . . . . . 18
     8.2.  Informative References . . . . . . . . . . . . . . . . . . 18
   9. Conclusion  . . . . . . . . . . . . . . . . . . . . . . . . . . 19
     9.1.  Demonstration of Applicability . . . . . . . . . . . . . . 19
       9.1.1.  Service Interface Interoperability . . . . . . . . . . 19
       9.1.2.  IRB Types  . . . . . . . . . . . . . . . . . . . . . . 19
       9.1.3.  IRB Core Connectivity Types  . . . . . . . . . . . . . 20