RFC 9857
Advertisement of Segment Routing Policies Using BGP - Link State, October 2025
- File formats:

- Also available: XML file for editing
- Status:
- PROPOSED STANDARD
- Authors:
- S. Previdi
K. Talaulikar, Ed.
J. Dong
H. Gredler
J. Tantsura - Stream:
- IETF
- Source:
- idr (rtg)
Cite this RFC: TXT | XML | BibTeX
DOI: https://doi.org/10.17487/RFC9857
Discuss this RFC: Send questions or comments to the mailing list idr@ietf.org
Other actions: Submit Errata | Find IPR Disclosures from the IETF | View History of RFC 9857
Abstract
This document describes a mechanism used to collect Segment Routing (SR) Policy information that is locally available in a node and advertise it into BGP - Link State (BGP-LS) updates. Such information can be used by external components for path computation, reoptimization, service placement, network visualization, etc.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.