IS-IS Flooding Reduction in MSDC
draft-xu-isis-flooding-reduction-in-msdc-00

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Network Working Group                                              X. Xu
Internet-Draft                                                    Huawei
Intended status: Standards Track                         January 6, 2017
Expires: July 10, 2017

                    IS-IS Flooding Reduction in MSDC
              draft-xu-isis-flooding-reduction-in-msdc-00

Abstract

   IS-IS is commonly used as a underlay routing protocol for MSDC
   (Massively Scalable Data Center) networks.  This document proposes
   some extensions to IS-IS so as to reduce the IS-IS flooding within
   MSDC networks greatly.  The reduction of the IS-IS flooding is much
   beneficial to improve the scalability of MSDC networks.

Status of This Memo

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

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   This Internet-Draft will expire on July 10, 2017.

Copyright Notice

   Copyright (c) 2017 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
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Xu                        Expires July 10, 2017                 [Page 1]
Internet-Draft          MPLS Payload Protocol ID            January 2017

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   4
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Modifications to Current IS-IS Behaviors  . . . . . . . . . .   4
     3.1.  IS-IS Routers as Non-DIS  . . . . . . . . . . . . . . . .   4
     3.2.  Controllers as DIS  . . . . . . . . . . . . . . . . . . .   5
   4.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   5
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .   5
     7.2.  Informative References  . . . . . . . . . . . . . . . . .   5
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   6

1.  Introduction

   IS-IS is commonly used as a underlay routing protocol for Massively
   Scalable Data Center (MSDC) networks.  In addition, centrolized
   controllers are becoming fundamental network elements in most MSDCs.
   One or more controllers are usually connected to all routers within
   the MSDC network via a Local Area Network (LAN) which is dedicated
   for network management purpose (called management LAN), as shown in
   Figure 1.

Xu                        Expires July 10, 2017                 [Page 2]
Internet-Draft          MPLS Payload Protocol ID            January 2017

           +----------+                  +----------+
           |Controller|                  |Controller|
           +----+-----+                  +-----+----+
                |DIS                           |Candidate DIS
                |                              |
                |                              |
   ---+---------+---+----------+-----------+---+---------+-Management LAN
      |             |          |           |             |
      |Non-DIS      |Non-DIS   |Non-DIS    |Non-DIS      |Non-DIS
      |             |          |           |             |
      |         +---+--+       |       +---+--+          |
      |         |Router|       |       |Router|          |
      |         *------*-      |      /*---/--*          |
      |        /     \   --    |    //    /    \         |
      |        /     \     --  |  //      /    \         |
      |       /       \      --|//       /      \        |
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