The IESG has approved the following document: - 'Path Computation Element Communication Protocol (PCEP) Extensions for Segment Routing (SR) Policy Candidate Paths' (draft-ietf-pce-segment-routing-policy-cp-27.txt) as Proposed Standard
This document is the product of the Path Computation Element Working Group. The IESG contact persons are Gunter Van de Velde, Jim Guichard, Ketan Talaulikar and Roman Danyliw. A URL of this Internet-Draft is: https://datatracker.ietf.org/doc/draft-ietf-pce-segment-routing-policy-cp/ Technical Summary 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. Packet flows are steered into an SR Policy on a node where it is instantiated called a headend node. An SR Policy is made of one or more candidate paths. This document specifies the Path Computation Element Communication Protocol (PCEP) extension to signal candidate paths of the SR Policy. Additionally, this document updates RFC 8231 to allow stateful bring up of an SR Label Switched Path (LSP), without using the path computation request and reply messages. This document is applicable to both Segment Routing over MPLS (SR-MPLS) and Segment Routing over IPv6 (SRv6). Working Group Summary WG debated the use of a fixed value for association ID (and innovative use of Extended Association ID) but converged on the current solution to handle any possibility of a race condition in case of multiple PCE. This has WG consensus behind it. Document Quality Two production implementations are reported -- Cisco and Juniper. Personnel The Document Shepherd for this document is Dhruv Dhody. The Responsible Area Director is Roman Danyliw. _______________________________________________ Pce mailing list -- pce@ietf.org To unsubscribe send an email to pce-le...@ietf.org
