The IESG has received a request from the Path Computation Element WG (pce) to consider the following document: - 'Carrying SR-Algorithm in Path Computation Element Communication Protocol (PCEP)' <draft-ietf-pce-sid-algo-24.txt> as Proposed Standard
The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the [email protected] mailing lists by 2025-09-25. Exceptionally, comments may be sent to [email protected] instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document specifies extensions to the Path Computation Element Communication Protocol (PCEP) to enhance support for Segment Routing (SR) with a focus on the use of Segment Identifiers (SIDs) and SR- Algorithms in Traffic Engineering (TE). The SR-Algorithm associated with a SID defines the path computation algorithm used by Interior Gateway Protocols (IGPs). This document introduces extensions in three main areas. Mechanisms for informing PCEP peers about the SR-Algorithm associated with SIDs by encoding this information in Explicit Route Object (ERO) and Record Route Object (RRO) subobjects. This document updates RFC 8664 and RFC 9603 to allow such extension. The document specifies SR-Algorithm constraint, enabling refined path computations that can leverage IGP algorithm logic, including Flexible Algorithms, and their associated constraints and optimization metrics. It defines new metric types for the METRIC object required to support SR-Algorithm based path computation, but also applicable to Label Switched Paths (LSPs) setup using different Path Setup Types. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-pce-sid-algo/ No IPR declarations have been submitted directly on this I-D. _______________________________________________ Pce mailing list -- [email protected] To unsubscribe send an email to [email protected]
