TRILL: Address Flush Message
draft-ietf-trill-address-flush-02

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Document Type Active Internet-Draft (trill WG)
Last updated 2017-03-08 (latest revision 2017-01-26)
Replaces draft-hao-trill-address-flush
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Intended RFC status Proposed Standard
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TRILL Working Group                                           Weiguo Hao
INTERNET-DRAFT                                           Donald Eastlake
Intended status: Proposed Standard                             Yizhou Li
                                                                  Huawei
                                                          Mohammed Umair
                                                              IPinfusion
Expires: July 26, 2017                                  January 26, 2017

                      TRILL: Address Flush Message
                <draft-ietf-trill-address-flush-02.txt>

Abstract

   The TRILL (TRansparent Interconnection of Lots of Links) protocol, by
   default, learns end station addresses from observing the data plane.
   In particular, it learns local MAC addresses and edge switch port of
   attachment from the receipt of local data frames and learns remote
   MAC addresses and edge switch of attachment from the decapsulation of
   remotely sourced TRILL Data packets.

   This document specifies a message by which an originating TRILL
   switch can explicitly request other TRILL switches to flush certain
   MAC reachability learned through the decapsulation of TRILL Data
   packets. This is a supplement to the TRILL automatic address
   forgetting and can assist in achieving more rapid convergence in case
   of topology or configuration change.

Status of This Memo

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

   Distribution of this document is unlimited. Comments should be sent
   to the TRILL working group mailing list: trill@ietf.org.

   Internet-Drafts are working documents of the Internet Engineering
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W. Hao, et al                                                   [Page 1]
INTERNET-DRAFT                                     Address Flush Message

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/1id-abstracts.html. The list of Internet-Draft
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W. Hao, et al                                                   [Page 2]
INTERNET-DRAFT                                     Address Flush Message

Table of Contents

      1. Introduction............................................4
      1.1 Terminology and Acronyms...............................4

      2. Address Flush Message Details...........................6
      2.1 VLAN Block Only Case...................................7
      2.2 Extensible Case........................................8
      2.2.1 Blocks of VLANs.....................................11
      2.2.2 Bit Map of VLANs....................................11
      2.2.3 Blocks of FGLs......................................12
      2.2.4 list of FGLs........................................12
      2.2.5 Big Map of FGLs.....................................13
      2.2.6 All Data Labels.....................................13
      2.2.7 MAC Address List....................................14
      2.2.8 MAC Address Blocks..................................14

      3. IANA Considerations....................................16
      3.1 Address Flush RBridge Channel Protocol Number.........16
      3.2 TRILL Address Flush TLV Types.........................16

      4. Security Considerations................................17

      Normative References......................................18
      Informative References....................................18

      Acknowledgements..........................................18

      Authors' Addresses........................................19

W. Hao, et al                                                   [Page 3]
INTERNET-DRAFT                                     Address Flush Message

1. Introduction

   Edge TRILL (Transparent Interconnection of Lots of Links) switches
   [RFC6325] [RFC7780], also called edge RBridges, by default learn end
   station MAC address reachability from observing the data plane. On
   receipt of a native frame from an end station, they would learn the
   local MAC address attachment of the source end station. And on
   egressing (decapsulating) a remotely originated TRILL Data packet,
   they learn the remote MAC address and remote attachment TRILL switch.
   Such learning is all scoped by data label (VLAN or Fine Grained Label
   [RFC7172]).

   TRILL has mechanisms for timing out such learning and appropriately
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