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I-D ACTION:draft-ietf-isis-wg-multi-topology-00.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the IS-IS for IP Internets Working Group of the IETF.

	Title		: M-ISIS: Multi Topology Routing in IS-IS
	Author(s)	: T. Przygienda et al.
	Filename	: draft-ietf-isis-wg-multi-topology-00.txt
	Pages		: 7
	Date		: 27-Feb-01
	
This draft describes an optional implementation technique within
IS-IS [ISO90 , Cal90a , Cal90b] used today by many ISPs for
routing within their clouds.  IS-IS is an interior gateway routing
protocol developed originally by OSI and used with IP extensions as
IGP. This draft describes how to run within a single ISIS domain a
set of independent IP topologies that we call Multi-Topologies
(MTs), or Multiple views of Topology.  This MT extension can be used
for variety of purposes such as an in-band management network
on top' of the original IGP topology, transport multiple
overlapping IP address spaces in the same protocol, force a subset
of an address space to follow a different topology, or finally,
even maintain a restricted number of protocol based VPNs.

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