TRILL: Interface Addresses APPsub-TLV
draft-eastlake-trill-ia-appsubtlv-00

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INTERNET-DRAFT                                           Donald Eastlake
Intended status: Proposed Standard                             Yizhou Li
                                                                  Huawei
                                                           Radia Perlman
                                                                   Intel
Expires: January 14, 2014                                  July 15, 2013

                 TRILL: Interface Addresses APPsub-TLV
               <draft-eastlake-trill-ia-appsubtlv-00.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 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 used, for example,
   to synthesize responses to or by-pass the need for the Address
   Resolution Protocol (ARP), the IPv6 Neighbor Discovery (ND) protocol,
   of the flooding of unknown MAC addresses, in some cases.

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....................................11
      5.1 Additional AFN Number Allocation......................11
      5.2 IA APPsub-TLV Sub-Sub-TLVs SubRegistry................11

      Acknowledgments...........................................13
      Normative References......................................13
      Informational References..................................14
      Authors' Addresses........................................15

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 end station
   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 corresponding
   to the same interface.

   This APPsub-TLV is used inside the TRILL GENINFO TLV as specified in
   [ESADI]. It is expected to be used in Directory Assisted TRILL Edge
   services [DirectoryFramework].

   Although, in some IETF protocols, address field types are represented
   by EtherType [RFC5342bis] or Hardware Type [RFC5494] only Address
   Family Number is used in this APPsub-TLV.

1.1 Conventions Used in This Document

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
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