RFC 5120 on M-ISIS: Multi Topology (MT) Routing in Intermediate System to Intermediate Systems (IS-ISs)

A new Request for Comments is now available in online RFC libraries.

        RFC 5120

        Title:      M-ISIS: Multi Topology (MT) Routing 
                    in Intermediate System to Intermediate Systems 
                    (IS-ISs) 
        Author:     T. Przygienda, N. Shen,
                    N. Sheth
        Status:     Standards Track
        Date:       February 2008
        Mailbox:    prz@net4u.ch, 
                    naiming@cisco.com, 
                    nsheth@juniper.net
        Pages:      14
        Characters: 30318
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-isis-wg-multi-topology-12.txt

        URL:        http://www.rfc-editor.org/rfc/rfc5120.txt

This document describes an optional mechanism within Intermediate
System to Intermediate Systems (IS-ISs) used today
by many ISPs for IGP routing within their clouds.  This document
describes how to run, within a single IS-IS domain, a set of
independent IP topologies that we call Multi-Topologies (MTs).
This MT extension can be used for a variety of purposes, such as an
in-band management network "on top" of the original IGP topology,
maintaining separate IGP routing domains for isolated multicast or
IPv6 islands within the backbone, or forcing a subset of an address
space to follow a different topology.  [STANDARDS TRACK]

This document is a product of the IS-IS for IP Internets
Working Group of the IETF.

This is now a Proposed Standard Protocol.

STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements.Please refer to the current edition of the Internet
 Official Protocol Standards (STD 1) for the standardization state and
 status of this protocol.  Distribution of this memo is unlimited.

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