PBB-EVPN ISID-based CMAC-Flush
draft-snr-bess-pbb-evpn-isid-cmacflush-04

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BESS Workgroup                                           J. Rabadan, Ed.
Internet Draft                                              S. Sathappan
Intended status: Standards Track                              K. Nagaraj
                                                                   Nokia

                                                               M. Miyake
                                                              T. Matsuda
                                                                Softbank

Expires: January 19, 2019                                  July 18, 2018

                     PBB-EVPN ISID-based CMAC-Flush
               draft-snr-bess-pbb-evpn-isid-cmacflush-04

Abstract

   RFC7623 defines how Provider Backbone Bridging (PBB) can be combined
   with Ethernet VPN (EVPN) to deploy ELAN services in very large MPLS
   networks. RFC7623 also describes how Single-Active Multi-homing and
   per-ISID Load-Balancing can be provided to access devices and
   aggregation networks. In order to speed up the network convergence in
   case of failures on Single-Active Multi-Homed Ethernet Segments,
   RFC7623 defines a CMAC-Flush mechanism that works for different
   Ethernet Segment BMAC address allocation models. This document
   complements those CMAC-Flush procedures for cases in which no PBB-
   EVPN Ethernet Segments are defined (ESI 0) and an ISID-based CMAC-
   Flush granularity is desired.

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
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   The list of current Internet-Drafts can be accessed at
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   The list of Internet-Draft Shadow Directories can be accessed at
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   This Internet-Draft will expire on January 19, 2019.

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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   (http://trustee.ietf.org/license-info) in effect on the date of
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   described in the Simplified BSD License.

Table of Contents

   1. Problem Statement . . . . . . . . . . . . . . . . . . . . . . .  2
   2. Solution requirements . . . . . . . . . . . . . . . . . . . . .  4
   3. EVPN BGP Encoding for ISID-based CMAC-flush . . . . . . . . . .  5
   4. Solution description  . . . . . . . . . . . . . . . . . . . . .  6
     4.1 ISID-based CMAC-Flush activation procedures  . . . . . . . .  6
     4.2 CMAC-Flush generation  . . . . . . . . . . . . . . . . . . .  7
     4.3 CMAC-Flush process upon receiving a CMAC-Flush
         notification . . . . . . . . . . . . . . . . . . . . . . . .  7
   5. Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . .  8
   6. Conventions used in this document . . . . . . . . . . . . . . .  8
   7. Security Considerations . . . . . . . . . . . . . . . . . . . .  9
   8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . .  9
   9. References  . . . . . . . . . . . . . . . . . . . . . . . . . .  9
     9.1 Normative References . . . . . . . . . . . . . . . . . . . .  9
     9.2 Informative References . . . . . . . . . . . . . . . . . . .  9
   10. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . .  9
   11. Contributors . . . . . . . . . . . . . . . . . . . . . . . . .  9
   17. Authors' Addresses . . . . . . . . . . . . . . . . . . . . . .  9

1. Problem Statement

   RFC7623 defines how Provider Backbone Bridging (PBB) can be combined
 

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   with Ethernet VPN (EVPN) to deploy ELAN services in very large MPLS
   networks. RFC7623 also describes how Single-Active Multi-homing and
   per-ISID Load-Balancing can be provided to access devices and