TRILL: Interface Addresses APPsub-TLV
draft-ietf-trill-ia-appsubtlv-09

Document Type Active Internet-Draft (trill WG)
Last updated 2016-07-18 (latest revision 2016-07-05)
Replaces draft-eastlake-trill-ia-appsubtlv
Stream IETF
Intended RFC status Proposed Standard
Formats plain text pdf html bibtex
Stream WG state Submitted to IESG for Publication
Document shepherd Susan Hares
Shepherd write-up Show (last changed 2016-02-08)
IESG IESG state RFC Ed Queue
Consensus Boilerplate Yes
Telechat date
Responsible AD Alia Atlas
Send notices to (None)
IANA IANA review state IANA OK - Actions Needed
IANA action state RFC-Ed-Ack
RFC Editor RFC Editor state EDIT
INTERNET-DRAFT                                           Donald Eastlake
Intended status: Proposed Standard                             Yizhou Li
                                                                  Huawei
Expires: January 4, 2017                                    July 5, 2016

                 TRILL: Interface Addresses APPsub-TLV
                 <draft-ietf-trill-ia-appsubtlv-09.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. Each set of addresses reports all
   of the addresses that designate the same interface (port) and also
   reports the TRILL switch by which that interface is reachable. For
   example, a 48-bit MAC (Media Access Control) address, IPv4 address,
   and IPv6 address can be reported as all corresponding to the same
   interface reachable by a particular TRILL switch. Such information
   could be used in some cases to synthesize responses to or bypass 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.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
   other groups may also distribute working documents as Internet-
   Drafts.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/1id-abstracts.html. The list of Internet-Draft
   Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html.

D. Eastlake and Y Li                                            [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............5

      3. IA APPsub-TLV sub-sub-TLVs.............................10
      3.1 AFN Size sub-sub-TLV..................................10
      3.2 Fixed Address sub-sub-TLV.............................11
      3.3 Data Label sub-sub-TLV................................12
      3.4 Topology sub-sub-TLV..................................13

      4. Security Considerations................................14

      5. IANA Considerations....................................15
      5.1 AFN Number Allocation.................................15
      5.2 IA APPsub-TLV Sub-Sub-TLVs SubRegistry................15
      5.3 IA APPsub-TLV Number..................................16

      6. Additional AFN Information.............................17
      7. Processing Address Sets................................18

      Acknowledgments...........................................19

      Appendix A: Examples......................................20
      A.1 Simple Example........................................20
      A.2 Complex Example.......................................20

      Appendix Z: Change History................................23

      Normative References......................................24
      Informational References..................................25

      Authors' Addresses........................................26

D. Eastlake and Y Li                                            [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 where
   all of the addresses in each set designate the same interface (port).
   For example, a 48-bit MAC (Media Access Control [RFC7042]) 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 [RFC7172])) is specified for the interface
   along with the TRILL switch, and optionally the TRILL switch port,
   from which the interface is reachable.  Such information could be
   used in some cases to synthesize responses to or bypass the need for
   the Address Resolution Protocol (ARP [RFC826]), the IPv6 Neighbor
Show full document text