C. Filsfils

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Operations, Administration, and Maintenance (OAM) in Segment Routing over IPv6 (SRv6)

Zeeshan Ali C. Filsfils S. Matsushima D. Voyer M. Chen

10.17487/rfc9259

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Segment Routing Policy Architecture

C. Filsfils Daniel Voyer Andrey Bogdanov Paul Mattes

Segment Routing (SR) allows a headend node to steer a packet flow along any path. Intermediate per-flow states are eliminated thanks to source routing. The headend node steers a flow into an SR Policy. The header of a packet steered in an SR Policy is augmented with an ordered list of segments associated with that SR Policy. This document details the concepts of SR Policy and steering into an SR Policy.

10.17487/rfc9256

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Path Computation Element Communication Protocol (PCEP) Extensions for Segment Routing

Siva Sivabalan C. Filsfils Jeff Tantsura Wim Henderickx J. Marie Hardwick

Segment Routing (SR) enables any head-end node to select any path without relying on a hop-by-hop signaling technique (e.g., LDP or RSVP-TE). It depends only on segments that are advertised by link- state Interior Gateway Protocols (IGPs). A Segment Routing Path can be derived from a variety of mechanisms, including an IGP Shortest Path Tree (SPT), explicit configuration, or a Path Computation Element (PCE). This document specifies extensions to the Path Computation Element Communication Protocol (PCEP) that allow a stateful PCE to compute and initiate Traffic Engineering (TE) paths, as well as a PCC to request a path subject to certain constraints and optimization criteria in SR networks.

10.17487/rfc8664

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Citations (3)