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Transparent Interconnection of Lots of Links (TRILL): End Station Address Distribution Information (ESADI) Protocol
RFC 7357

Document type: RFC - Proposed Standard (September 2014; No errata)
Updates RFC 6325
Document stream: IETF
Last updated: 2014-09-02
Other versions: plain text, pdf, html

IETF State: Submitted to IESG for Publication
Consensus: Unknown
Document shepherd: Erik Nordmark
Shepherd Write-Up: Last changed 2014-03-03

IESG State: RFC 7357 (Proposed Standard)
IANA Action State: RFC-Ed-Ack
Responsible AD: Ted Lemon
Send notices to: trill-chairs@tools.ietf.org, draft-ietf-trill-esadi@tools.ietf.org

Internet Engineering Task Force (IETF)                           H. Zhai
Request for Comments: 7357                                         F. Hu
Updates: 6325                                                        ZTE
Category: Standards Track                                     R. Perlman
ISSN: 2070-1721                                               Intel Labs
                                                         D. Eastlake 3rd
                                                                  Huawei
                                                               O. Stokes
                                                        Extreme Networks
                                                          September 2014

         Transparent Interconnection of Lots of Links (TRILL):
     End Station Address Distribution Information (ESADI) Protocol

Abstract

   The IETF TRILL (Transparent Interconnection of Lots of Links)
   protocol provides least-cost pair-wise data forwarding without
   configuration in multi-hop networks with arbitrary topologies and
   link technologies.  TRILL supports multipathing of both unicast and
   multicast traffic.  Devices that implement the TRILL protocol are
   called TRILL switches or RBridges (Routing Bridges).

   ESADI (End Station Address Distribution Information) is an optional
   protocol by which a TRILL switch can communicate, in a Data Label
   (VLAN or fine-grained label) scoped way, end station address and
   reachability information to TRILL switches participating in ESADI for
   the relevant Data Label.  This document updates RFC 6325,
   specifically the documentation of the ESADI protocol, and is not
   backwards compatible.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc7357.

Zhai, et al.                 Standards Track                    [Page 1]
RFC 7357                      TRILL: ESADI                September 2014

Copyright Notice

   Copyright (c) 2014 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Zhai, et al.                 Standards Track                    [Page 2]
RFC 7357                      TRILL: ESADI                September 2014

Table of Contents

   1. Introduction ....................................................4
      1.1. Content and Precedence .....................................5
      1.2. Terminology ................................................5
   2. ESADI Protocol Overview .........................................6
      2.1. ESADI Virtual Link ........................................10
      2.2. ESADI Neighbor Determination ..............................10
      2.3. ESADI Payloads ............................................11
   3. ESADI DRB (Designated RBridge) Determination ...................11
   4. ESADI PDU Processing ...........................................12
      4.1. Unicasting ESADI PDUs .....................................12
      4.2. General Transmission of ESADI PDUs ........................13
      4.3. General Receipt of ESADI PDUs .............................14
      4.4. ESADI Reliable Flooding ...................................14
   5. End Station Addresses ..........................................15
      5.1. Learning Confidence Level .................................15
      5.2. Forgetting End Station Addresses ..........................16
      5.3. Duplicate MAC Address .....................................16
   6. ESADI-LSP Contents .............................................18
      6.1. ESADI Parameter Data ......................................19
      6.2. MAC-Reachability TLV ......................................20
      6.3. Default Authentication ....................................21

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