RFC 2973 (rfc2973) - Page 1 of 8


IS-IS Mesh Groups



Alternative Format: Original Text Document



Network Working Group                                           R. Balay
Request for Comments: 2973                         CoSine Communications
Category: Informational                                          D. Katz
                                                        Juniper Networks
                                                               J. Parker
                                                       Axiowave Networks
                                                            October 2000


                           IS-IS Mesh Groups

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

Abstract

   This document describes a mechanism to reduce redundant packet
   transmissions for the Intermediate System to Intermediate System
   (IS-IS) Routing protocol, as described in ISO 10589.  The described
   mechanism can be used to reduce the flooding of Link State PDUs
   (Protocol Data Units) (LSPs) in IS-IS topologies.  The net effect is
   to engineer a flooding topology for LSPs which is a subset of the
   physical topology.  This document serves to document the existing
   behavior in deployed implementations.

   The document describes behaviors that are backwards compatible with
   implementations that do not support this feature.

Table of Contents

   1. Overview..................................................... 2
   2. Definitions of Mesh Groups................................... 3
   3. Drawbacks of Mesh Groups..................................... 5
   4. Interoperation with Mesh Groups.............................. 6
   5. Acknowledgments.............................................. 6
   6. References................................................... 6
   7. Security Considerations...................................... 6
   8. Authors' Addresses........................................... 7
   9. Full Copyright Statement..................................... 8





Balay, et al.                Informational