TRILL: Interface Addresses APPsub-TLV
draft-eastlake-trill-ia-appsubtlv-01

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Last updated 2013-09-16
Replaced by draft-ietf-trill-ia-appsubtlv, rfc7961
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INTERNET-DRAFT                                           Donald Eastlake
Intended status: Proposed Standard                             Yizhou Li
                                                                  Huawei
                                                           Radia Perlman
                                                                   Intel
Expires: March 15, 2014                               September 16, 2013

                 TRILL: Interface Addresses APPsub-TLV
               <draft-eastlake-trill-ia-appsubtlv-01.txt>

Abstract
   This document specifies a TRILL (Transparent Interconnection of Lots
   of Links) IS-IS application sub-TLV that enables the reporting by a
   TRILL switch of sets of addresses such that all of the addresses in
   each set designate the same interface (port). For example, an EUI-48
   MAC (Extended Unique Identifier 48-bit, Media Access Control)
   address, IPv4 address, and IPv6 address can be reported as all
   corresponding to the same interface. Such information could be use in
   some cases to synthesize responses to or by-pass the need for the
   Address Resolution Protocol (ARP), the IPv6 Neighbor Discovery (ND)
   protocol, or the flooding of unknown MAC addresses.

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.

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D. Eastlake, et al                                              [Page 1]
INTERNET-DRAFT                                      TRILL: IA APPsub-TLV

Table of Contents

      1. Introduction............................................3
      1.1 Conventions Used in This Document......................3

      2. Format of the Interface Addresses APPsub-TLV............4

      3. IA APPsub-TLV sub-sub-TLVs..............................8
      3.1 AFN Size sub-sub-TLV...................................8
      3.2 Fixed Address sub-sub-TLV..............................9
      3.3 Data Label sub-sub-TLV.................................9
      3.4 Topology sub-sub-TLV..................................10

      4. Security Considerations................................11

      5. IANA Considerations....................................12
      5.1 Additional AFN Number Allocation......................12
      5.2 IA APPsub-TLV Sub-Sub-TLVs SubRegistry................13

      Acknowledgments...........................................14

      Appendix A: Examples......................................15
      A.1 Simple Example........................................15
      A.2 Complex Example.......................................15

      Normative References......................................18
      Informational References..................................18
      Authors' Addresses........................................20

D. Eastlake, et al                                              [Page 2]
INTERNET-DRAFT                                      TRILL: IA APPsub-TLV

1. Introduction

   This document specifies a TRILL (Transparent Interconnection of Lots
   of Links) [RFC6325] IS-IS application sub-TLV (APPsub-TLV [RFC6823])
   that enables the convenient representation of sets of addresses such
   that all of the addresses in each set designate the same interface
   (port). For example, an EUI-48 MAC (Extended Unique Identifier
   48-bit, Media Access Control [RFC5342bis]) address, IPv4 address, and
   IPv6 address can be reported as all three designating the same
   interface.  In addition, a Data Label (VLAN or Fine Grained Label
   (FGL [RFCfgl])) is specified for the interface along with the TRILL
   switch and, optional the TRILL switch port, from which the interface
   is reachable.

   This APPsub-TLV appears inside the TRILL GENINFO TLV specified in
   [ESADI] but may also occur in other application contexts. Directory
   Assisted TRILL Edge services [DirectoryFramework] [DirectoryScheme]
   are expected to make use of this APPsub-TLV.

   Although, in some IETF protocols, address field types are represented
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