The IESG has approved the following document: - 'PCEP Extensions for Stateful PCE' (draft-ietf-pce-stateful-pce-21.txt) as Proposed Standard This document is the product of the Path Computation Element Working Group. The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-pce-stateful-pce/ Technical Summary The Path Computation Element Communication Protocol (PCEP) provides mechanisms for Path Computation Elements (PCEs) to perform path computations in response to Path Computation Clients (PCCs) requests. Although PCEP explicitly makes no assumptions regarding the information available to the PCE, it also makes no provisions for PCE control of timing and sequence of path computations within and across PCEP sessions. This document describes a set of extensions to PCEP to enable stateful control of MPLS-TE and GMPLS LSPs via PCEP. Working Group Summary The document already has a long history. It started with squatting some codepoints, which resulted in publishing RFC 7470, a.k.a. "RFC 7150 bis". Some changes have been heavily argued, mainly because of some reluctance to update existing implementations, but this version reflects a WG consensus. Document Quality There are several implementations, including one open source (OpenDaylight). Have a significant number of vendors indicated their plan to implement the specification? Yes, even more have plans. Are there any reviewers that merit special mention as having done a thorough review, e.g., one that resulted in important changes or a conclusion that the document had no substantive issues? Some updates have been triggered by a couple of operators, thanks to some interoperability testing between several implementations. If there was a MIB Doctor, Media Type or other expert review, what was its course (briefly)? In the case of a Media Type review, on what date was the request posted? N/A Personnel Who is the Document Shepherd for this document? Julien Meuric Who is the Responsible Area Director? Deborah Brungard
