datatracker.ietf.org
Sign in
Version 5.3.0, 2014-04-12
Report a bug

TRILL (Transparent Interconnection of Lots of Links): Fine-Grained Labeling
draft-ietf-trill-fine-labeling-07

TRILL Working Group                                      Donald Eastlake
INTERNET-DRAFT                                              Mingui Zhang
Intended status: Proposed Standard                                Huawei
Updates: 6325                                             Puneet Agarwal
                                                                Broadcom
                                                           Radia Perlman
                                                              Intel Labs
                                                             Dinesh Dutt
                                                        Cumulus Networks
Expires: November 16, 2013                                  May 17, 2013

         TRILL (Transparent Interconnection of Lots of Links):
                         Fine-Grained Labeling
                <draft-ietf-trill-fine-labeling-07.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 and a hop count. The TRILL base protocol
   standard supports labeling of TRILL data with up to 4K IDs. However,
   there are applications that require a larger number of labels
   providing configurable isolation of data. This document updates RFC
   6325 by specifying optional extensions to the TRILL base protocol to
   safely accomplish this. These extensions, called fine grained
   labeling, are primarily intended for use in large Data Centers, those
   with >4K users requiring configurable data isolation from each other.

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."

D. Eastlake, et al                                              [Page 1]
INTERNET-DRAFT                              TRILL: Fine-Grained Labeling

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

Table of Contents

      1. Introduction............................................4
      1.1 Terminology............................................5
      1.2 Contributors...........................................5

      2. Fine-Grained Labeling...................................6
      2.1 Goals..................................................6
      2.2 Base Protocol TRILL Data Labeling......................7
      2.3 Fine-Grained Labeling (FGL)............................8
      2.4 Reasons for VL and FGL Co-existence....................9

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

      4. FGL Processing.........................................11
      4.1 Ingress Processing....................................11
      4.1.1 Multi-Destination FGL Ingress.......................11
      4.2 Transit Processing....................................12
      4.2.1 Unicast Transit Processing..........................12
      4.2.2 Multi-Destination Transit Processing................12
      4.3 Egress Processing.....................................13
      4.4 Appointed Forwarders and the DRB......................14
      4.5 Distribution Tree Construction........................14
      4.6 Address Learning......................................15
      4.7 ESADI Extension.......................................15

      5. FGL TRILL Interaction with VL TRILL....................16
      5.1 FGL and VL Mixed Campus...............................16
      5.2 FGL and VL Mixed Links................................18
      5.3 Summary of FGL-safe Requirements......................18

      6. IS-IS Extensions.......................................20
      7. Comparison to Goals....................................21

      8. Allocation Considerations..............................22
      8.1 IEEE Allocation Considerations........................22

[include full document text]