[Lsr] I-D Action: draft-ietf-lsr-isis-flood-reflection-02.txt
internet-drafts@ietf.org Mon, 18 January 2021 17:28 UTC
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Subject: [Lsr] I-D Action: draft-ietf-lsr-isis-flood-reflection-02.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 : IS-IS Flood Reflection Authors : Tony Przygienda Chris Bowers Yiu Lee Alankar Sharma Russ White Filename : draft-ietf-lsr-isis-flood-reflection-02.txt Pages : 17 Date : 2021-01-18 Abstract: This document describes an optional ISIS extension that allows the creation of IS-IS flood reflection topologies. Flood reflection allows the creation of topologies where L1 areas provide transit forwarding for L2 destinations within an L2 topology. It accomplishes this by creating L2 flood reflection adjacencies within each L1 area. The L2 flood reflection adjacencies are used to flood L2 LSPDUs, and they are used in the L2 SPF computation. However, they are not used for forwarding. This arrangement gives the L2 topology better scaling properties. In addition, only those routers directly participating in flood reflection have to support the feature. This allows for the incremental deployment of scalable L1 transit areas in an existing network, without the necessity of upgrading other 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 are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-lsr-isis-flood-reflection-02 https://datatracker.ietf.org/doc/html/draft-ietf-lsr-isis-flood-reflection-02 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-lsr-isis-flood-reflection-02 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/
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