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RFC 9256: Segment Routing Policy Architecture

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

Segment Routing (SR) allows a node to steer a packet flow along any path. Intermediate per-path states are eliminated thanks to source routing. SR Policy is an ordered list of segments (i.e., instructions) that represent a source-routed policy. Packet flows are steered into an SR Policy on a node where it is instantiated called a headend node. The packets steered into an SR Policy carry an ordered list of segments associated with that SR Policy. This document updates RFC 8402 as it details the concepts of SR Policy and steering into an SR Policy.

Document record

Document ID
RFC9256
Published
July 2022
Authors
C. Filsfils; K. Talaulikar; D. Voyer; A. Bogdanov; P. Mattes
Status
PROPOSED STANDARD
Stream
IETF
Area
rtg
Pages
35
Also known as
—
Updates:
RFC 8402

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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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