AC-Aware Bundling Service Interface in EVPN
draft-sajassi-bess-evpn-ac-aware-bundling-00

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Last updated 2018-10-22
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BESS WorkGroup                                              Ali. Sajassi
Internet-Draft                                         Mankamana. Mishra
Intended status: Standards Track                           Samir. Thoria
Expires: April 25, 2019                               Patrice. Brissette
                                                           Cisco Systems
                                                        October 22, 2018

              AC-Aware Bundling Service Interface in EVPN
              draft-sajassi-bess-evpn-ac-aware-bundling-00

Abstract

   EVPN provides an extensible and flexible multi-homing VPN solution
   over an MPLS/IP network for intra-subnet connectivity among Tenant
   Systems and End Devices that can be physical or virtual.

   EVPN multihoming with IRB is one of the common deployment scenarios.
   There are deployments which requires capability to have multiple
   subnets designated with multiple VLAN IDs in single bridge domain.

   RFC7432 defines three different type of service interface which serve
   different requirements but none of them address the requirement to be
   able to support multiple subnets within single bridge domain.  In
   this draft we define new service interface type to support multiple
   subnets in single bridge domain.

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).  Note that other groups may also distribute
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on April 25, 2019.

Sajassi, et al.          Expires April 25, 2019                 [Page 1]
Internet-Draft AC-Aware Bundling Service Interface in EVPN  October 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
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   publication of this document.  Please review these documents
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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Problem with Unicast MAC route processing for multihome
           case  . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     1.2.  Problem with Multicast route synchronization  . . . . . .   6
     1.3.  Potential Security concern caused by misconfiguration . .   6
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   6
   3.  Requirements  . . . . . . . . . . . . . . . . . . . . . . . .   8
   4.  Solution Description  . . . . . . . . . . . . . . . . . . . .   9
     4.1.  Control Plane Operation . . . . . . . . . . . . . . . . .  11
       4.1.1.  MAC/IP Address Advertisement  . . . . . . . . . . . .  11
         4.1.1.1.  Local Unicast MAC learning  . . . . . . . . . . .  11
         4.1.1.2.  Remote Unicast MAC learning . . . . . . . . . . .  11
       4.1.2.  Multicast route Advertisement . . . . . . . . . . . .  11
         4.1.2.1.  Local multicast state . . . . . . . . . . . . . .  11
         4.1.2.2.  Remote multicast state  . . . . . . . . . . . . .  12
     4.2.  Data Plane Operation  . . . . . . . . . . . . . . . . . .  12
       4.2.1.  Unicast Forwarding  . . . . . . . . . . . . . . . . .  12
       4.2.2.  Multicast Forwarding  . . . . . . . . . . . . . . . .  13
   5.  BGP Encoding  . . . . . . . . . . . . . . . . . . . . . . . .  13
     5.1.  Attachment Circuit ID Extended Community  . . . . . . . .  13
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   8.  Acknowledgement . . . . . . . . . . . . . . . . . . . . . . .  14
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  14
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  15

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