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MSD Consideration in Path Computation Element Communication Protocol (PCEP)
draft-ali-pce-sr-policy-msd-consideration-00

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Zafar Ali , Andrew Stone , Diego Achaval , Samuel Sidor
Last updated 2026-01-08 (Latest revision 2025-07-07)
RFC stream (None)
Intended RFC status (None)
Formats
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

Abstract

Segment Routing (SR) allows a node to steer a packet flow along any path. SR Policy is an ordered list of segments (i.e., instructions) that represent a source-routed policy. The packets steered into an SR Policy carry an ordered list of segments associated with that SR Policy. An SR Policy can be instantiated SR-MPLS and SRv6 data planes. Maximum SID Depth (MSD) specifies the maximum number of SIDs that a Path Computation Client (PCC) is capable of imposing on a packet. The number of SIDs in an SR-TE path computed by the PCE on behalf of a PCC is dictated by the MSD value at the PCC. This draft specifies some MSD considerations PCE needs to take into account when computing the number of SIDs in an SR-TE path.

Authors

Zafar Ali
Andrew Stone
Diego Achaval
Samuel Sidor

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)