Internet-Draft draft-ietf-pce-multipath-18.txt is now available. It is a work
item of the Path Computation Element (PCE) WG of the IETF.
Title: Path Computation Element Communication Protocol (PCEP) Extensions
for Signaling Multipath Information
Authors: Mike Koldychev
Siva Sivabalan
Tarek Saad
Vishnu Pavan Beeram
Hooman Bidgoli
Shuping Peng
Samuel Sidor
Name: draft-ietf-pce-multipath-18.txt
Pages: 29
Dates: 2026-01-08
Abstract:
Certain traffic engineering path computation problems require
solutions that consist of multiple traffic paths that together form a
solution. Returning a single traffic path does not provide a valid
solution. This document defines mechanisms to encode multiple paths
for a single set of objectives and constraints. This allows encoding
of multiple Segment Lists per Candidate Path within a Segment Routing
Policy. The new Path Computation Element Communication Protocol
(PCEP) mechanisms are designed to be generic, where possible, to
allow for future re-use outside of SR Policy. The new PCEP
mechanisms are applicable to both stateless and stateful PCEP.
Additionally, this document updates RFC 8231 and RFC 8281 to allow
encoding of multiple Segment Lists in PCEP.
The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-multipath/
There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-pce-multipath-18.html
A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-pce-multipath-18
Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts
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