TRILL Smart Endnodes
draft-ietf-trill-smart-endnodes-08

Document Type Active Internet-Draft (trill WG)
Last updated 2018-02-20 (latest revision 2018-02-19)
Replaces draft-perlman-trill-smart-endnodes
Stream IETF
Intended RFC status Proposed Standard
Formats plain text pdf html bibtex
Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Susan Hares
Shepherd write-up Show (last changed 2018-02-19)
IESG IESG state In Last Call (ends 2018-03-06)
Consensus Boilerplate Yes
Telechat date On agenda of 2018-03-08 IESG telechat
Responsible AD Alia Atlas
Send notices to (None)
IANA IANA review state IANA - Review Needed
IANA action state None
TRILL WG                                                   Radia Perlman
Internet-Draft                                                  Dell EMC
Intended status: Standards Track                              Fangwei Hu
Expires: August 18, 2018                                 ZTE Corporation
                                                         Donald Eastlake
                                                                  Huawei
                                                               Ting Liao
                                                       February 19, 2018

                          TRILL Smart Endnodes
                 draft-ietf-trill-smart-endnodes-08.txt

Abstract

   This draft addresses the problem of the size and freshness of the
   endnode learning table in edge RBridges, by allowing endnodes to
   volunteer for endnode learning and encapsulation/decapsulation.  Such
   an endnode is known as a "Smart Endnode".  Only the attached edge
   RBridge can distinguish a "Smart Endnode" from a "normal endnode".
   The smart endnode uses the nickname of the attached edge RBridge, so
   this solution does not consume extra nicknames.  The solution also
   enables Fine Grained Label aware endnodes.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   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."

   This Internet-Draft will expire on August 18, 2018.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Perlman, et al.          Expires August 18, 2018                [Page 1]
Internet-Draft            TRILL Smart Endnodes              January 2018

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions used in this document . . . . . . . . . . . . . .   3
     2.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     2.2.  Requirements Language . . . . . . . . . . . . . . . . . .   4
   3.  Solution Overview . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Smart-Hello Mechanism between Smart Endnode and RBridge . . .   5
     4.1.  Smart-Hello Encapsulation . . . . . . . . . . . . . . . .   6
     4.2.  Edge RBridge's Smart-Hello  . . . . . . . . . . . . . . .   7
     4.3.  Smart Endnode's Smart-Hello . . . . . . . . . . . . . . .   7
   5.  Data Packet Processing  . . . . . . . . . . . . . . . . . . .   8
     5.1.  Data Packet Processing for Smart Endnode  . . . . . . . .   9
     5.2.  Data Packet Processing for Edge RBridge . . . . . . . . .  10
   6.  Multi-homing Scenario . . . . . . . . . . . . . . . . . . . .  11
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  12
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     10.1.  Informative References . . . . . . . . . . . . . . . . .  12
     10.2.  Normative References . . . . . . . . . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   The IETF TRILL (Transparent Interconnection of Lots of Links)
   protocol [RFC6325] [RFC7780] provides optimal pair-wise data frame
   forwarding without configuration, safe forwarding even during periods
   of temporary loops, and support for multipathing of both unicast and
   multicast traffic.  TRILL accomplishes this by using IS-IS [IS-IS]
   [RFC7176] link state routing and encapsulating traffic using a header
   that includes a hop count.  Devices that implement TRILL are called
   "RBridges" (Routing Bridges) or "TRILL Switches".

   An RBridge that attaches to endnodes is called an "edge RBridge" or
   "edge TRILL Switch", whereas one that exclusively forwards
   encapsulated frames is known as a "transit RBridge" or "transit TRILL
Show full document text