PBB-EVPN ISID-based CMAC-Flush
draft-snr-bess-pbb-evpn-isid-cmacflush-05

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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: July 26, 2019                                  January 22, 2019

                     PBB-EVPN ISID-based CMAC-Flush
               draft-snr-bess-pbb-evpn-isid-cmacflush-05

Abstract

   Provider Backbone Bridging (PBB) can be combined with Ethernet VPN
   (EVPN) to deploy ELAN services in very large MPLS networks (PBB-
   EVPN). 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, PBB-EVPN 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

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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 July 26, 2019.

Copyright Notice

   Copyright (c) 2019 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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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  . . . . . . . .  7
     4.2 CMAC-Flush generation  . . . . . . . . . . . . . . . . . . .  7
     4.3 CMAC-Flush process upon receiving a CMAC-Flush
         notification . . . . . . . . . . . . . . . . . . . . . . . .  8
   5. Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . .  8
   6. Conventions used in this document . . . . . . . . . . . . . . .  9
   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 . . . . . . . . . . . . . . . . . . . . . . 10

1. Problem Statement

   [RFC7623] defines how Provider Backbone Bridging (PBB) can be
 

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   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