[New-wg-docs] I-D Action: draft-ietf-lsr-isis-sr-vtn-mt-00.txt

internet-drafts@ietf.org Fri, 26 March 2021 16:28 UTC

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Subject: [New-wg-docs] I-D Action: draft-ietf-lsr-isis-sr-vtn-mt-00.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Link State Routing WG of the IETF.

        Title           : Using IS-IS Multi-Topology (MT) for Segment Routing based Virtual Transport Network
        Authors         : Chongfeng Xie
                          Chenhao Ma
                          Jie Dong
                          Zhenbin Li
	Filename        : draft-ietf-lsr-isis-sr-vtn-mt-00.txt
	Pages           : 8
	Date            : 2021-03-26

   Enhanced VPN (VPN+) aims to provide enhanced VPN service to support
   some application's needs of enhanced isolation and stringent
   performance requirements.  VPN+ requires integration between the
   overlay VPN and the underlay network.  A Virtual Transport Network
   (VTN) is a virtual underlay network which consists of a subset of the
   network topology and network resources allocated from the physical
   network.  A VTN could be used as the underlay for one or a group of
   VPN+ services.

   In some network scenarios, each VTN can be associated with a unique
   logicial network topology.  This document describes a mechanism to
   build the SR based VTNs using IS-IS Multi-Topology together with
   other well-defined IS-IS extensions.

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