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RFC 9666: Area Proxy for IS-IS

In plain English — editorial summary, not part of the RFC

Link-state routing protocols have hierarchical abstraction already built into them. However, when lower levels are used for transit, they must expose their internal topologies to each other, thereby leading to scaling issues. To avoid such issues, this document discusses extensions to the IS-IS routing protocol that allow Level 1 (L1) areas to provide transit but only inject an abstraction of the Level 1 topology into Level 2 (L2). Each Level 1 area is represented as a single Level 2 node, thereby enabling a greater scale.

Document record

Document ID
RFC9666
Published
October 2024
Authors
T. Li; S. Chen; V. Ilangovan; G. Mishra
Status
EXPERIMENTAL
Stream
IETF
Area
rtg
Pages
17
Also known as
—

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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