TRILL: Fine-Grained Labeling
draft-ietf-trill-fine-labeling-03

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Document Type Active Internet-Draft (trill WG)
Last updated 2012-12-12
Replaces draft-eastlake-trill-rbridge-fine-labeling
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TRILL Working Group                                      Donald Eastlake
INTERNET-DRAFT                                              Mingui Zhang
Intended status: Proposed Standard                                Huawei
Updates: 6325, 6327                                       Puneet Agarwal
                                                                Broadcom
                                                           Radia Perlman
                                                              Intel Labs
                                                             Dinesh Dutt
                                                        Cumulus Networks
Expires: June 11, 2013                                 December 12, 2012

                      TRILL: Fine-Grained Labeling
                <draft-ietf-trill-fine-labeling-03.txt>

Abstract

   The IETF has standardized TRILL (TRansparent Interconnection of Lots
   of Links), a protocol for least cost transparent frame routing in
   multi-hop networks with arbitrary topologies and link technologies,
   using link-state routing with a hop count. The TRILL base protocol
   standard supports labeling of TRILL data with up to 4K IDs. However,
   there are applications that require more fine-grained labeling of
   data. This document updates RFC 6325 and RFC 6327 by specifying
   optional extensions to the TRILL base protocol to safely accomplish
   this.

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: Fine-Grained Labeling

Table of Contents

      1. Introduction............................................3
      1.1 Terminology............................................3
      1.2 Contributors...........................................4

      2. Fine-Grained Labeling...................................5
      2.1 Goals..................................................5
      2.2 Base Protocol TRILL Data Labeling......................6
      2.3 Fine-Grained Labeling (FGL)............................7
      2.4 VL, Limited FGL, and Full FGL TRILL Switches...........8

      3. VL versus FGL Label Differences........................10

      4. FGL TRILL Interaction with VL TRILL....................11
      4.1 FGL and VL Mixed Campus Topology......................11
      4.2 FGL and VL Mixed Campus Characteristics...............12
      4.3 FGL and VL Mixed Links................................12

      5. FGL Details............................................14
      5.1 Ingress Processing....................................14
      5.2 Transit Processing....................................15
      5.2.1 Unicast Transit Processing..........................15
      5.2.2 Multi-Destination Transit Processing................15
      5.3 Egress Processing.....................................16
      5.4 Appointed Forwarders and the DRB......................16
      5.5 Address Learning......................................17
      5.6 ESADI Extensions......................................17

      6. IS-IS Extensions.......................................18
      7. Comparison to Goals....................................19

      8. Allocation Considerations..............................20
      8.1 IEEE Allocation Considerations........................20
      8.2 IANA Considerations...................................20

      9. Security Considerations................................21
      Acknowledgements..........................................22
      Normative References......................................23
      Informative References....................................23
      Appendix A: Serial Unicast................................24
      Appendix Z: Change History................................25

D. Eastlake, et al                                              [Page 2]
INTERNET-DRAFT                              TRILL: Fine-Grained Labeling
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