File formats:

Also available: XML file for editing

 

Status:

PROPOSED STANDARD

Updates:

RFC 9012

Authors:

S. Previdi
C. Filsfils
K. Talaulikar, Ed.
P. Mattes
D. Jain

Stream:

IETF

Source:

idr (rtg)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC9830

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Abstract

A Segment Routing (SR) Policy is an ordered list of segments (also referred to as "instructions") that define a source-routed policy. An SR Policy consists of one or more Candidate Paths (CPs), each comprising one or more segment lists. A headend can be provisioned with these CPs using various mechanisms such as Command-Line Interface (CLI), Network Configuration Protocol (NETCONF), Path Computation Element Communication Protocol (PCEP), or BGP.

This document specifies how BGP can be used to distribute SR Policy CPs. It introduces a BGP SAFI for advertising a CP of an SR Policy and defines sub-TLVs for the Tunnel Encapsulation Attribute to signal information related to these CPs.

Furthermore, this document updates RFC 9012 by extending the Color Extended Community to support additional steering modes over SR Policy.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.