[Lsr] I-D Action: draft-ietf-lsr-isis-flood-reflection-12.txt

internet-drafts@ietf.org Mon, 05 December 2022 19:42 UTC

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Date: Mon, 05 Dec 2022 11:42:22 -0800
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Subject: [Lsr] I-D Action: draft-ietf-lsr-isis-flood-reflection-12.txt

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           : IS-IS Flood Reflection
        Authors         : Tony Przygienda
                          Chris Bowers
                          Yiu Lee
                          Alankar Sharma
                          Russ White
  Filename        : draft-ietf-lsr-isis-flood-reflection-12.txt
  Pages           : 22
  Date            : 2022-12-05

Abstract:
   This document describes a backward-compatible, optional IS-IS
   extension that allows the creation of IS-IS flood reflection
   topologies.  Flood reflection permits topologies in which L1 areas
   provide transit forwarding for L2 using all available L1 nodes
   internally.  It accomplishes this by creating L2 flood reflection
   adjacencies within each L1 area.  Those adjacencies are used to flood
   L2 LSPDUs and are used in the L2 SPF computation.  However, they are
   not ordinarily utilized for forwarding within the flood reflection
   cluster.  This arrangement gives the L2 topology significantly better
   scaling properties than traditionally used flat designs.  As an
   additional benefit, only those routers directly participating in
   flood reflection are required to support the feature.  This allows
   for incremental deployment of scalable L1 transit areas in an
   existing, previously flat network design, without the necessity of
   upgrading all routers in the network.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-lsr-isis-flood-reflection/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-lsr-isis-flood-reflection-12.html

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-lsr-isis-flood-reflection-12


Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts

[Lsr] I-D Action: draft-ietf-lsr-isis-flood-refle… internet-drafts