Internet-Draft draft-ietf-lsr-distoptflood-11.txt is now available. It is a
work item of the Link State Routing (LSR) WG of the IETF.
Title: IS-IS Distributed Flooding Reduction
Authors: Russ White
Shraddha Hegde
Tony Przygienda
Luay Jalil
Daniel Voyer
Name: draft-ietf-lsr-distoptflood-11.txt
Pages: 13
Dates: 2025-10-20
Abstract:
In dense topologies (such as data center fabrics based on the Clos
and butterfly though not limited to those; in fact any large topology
or one with relatively high degree of connectivity qualifies here)
IGP flooding mechanisms designed originally for rather sparse
topologies can "overflood", or in other words generate too many
identical copies of same information arriving at a given node from
other devices. This normally results in longer convergence times and
higher resource utilization to process and discard the superfluous
copies. Flooding algorithm extensions that restrict the amount of
flooding performed can be constructed and can reduce resource
utilization significantly, while improving convergence performance.
One such flooding modification (based on previous art) optimized for
operational considerations, described further in Section 2, is
described in this document.
The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-lsr-distoptflood/
There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-lsr-distoptflood-11.html
A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-lsr-distoptflood-11
Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts
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