RFC 9604

Carrying Binding Label/SID in PCE-Based Networks, August 2024

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Status:
PROPOSED STANDARD
Authors:
S. Sivabalan
C. Filsfils
J. Tantsura
S. Previdi
C. Li, Ed.
Stream:
IETF
Source:
pce (rtg)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC9604

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Abstract

In order to provide greater scalability, network confidentiality, and service independence, Segment Routing (SR) utilizes a Binding Segment Identifier (BSID), as described in RFC 8402. It is possible to associate a BSID to an RSVP-TE-signaled Traffic Engineering (TE) Label Switched Path (LSP) or an SR TE path. The BSID can be used by an upstream node for steering traffic into the appropriate TE path to enforce SR policies. This document specifies the concept of binding value, which can be either an MPLS label or a Segment Identifier (SID). It further specifies an extension to Path Computation Element Communication Protocol (PCEP) for reporting the binding value by a Path Computation Client (PCC) to the Path Computation Element (PCE) to support PCE-based TE policies.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.




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