The IESG has approved the following document: - 'Applicability of a Stateful Path Computation Element (PCE)' (draft-ietf-pce-stateful-pce-app-08.txt) as Informational RFC 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-app/ Technical Summary A stateful Path Computation Element (PCE) maintains information about Label Switched Path (LSP) characteristics and resource usage within a network in order to provide traffic engineering calculations for its associated Path Computation Clients (PCCs). This document describes general considerations for a stateful PCE deployment and examines its applicability and benefits, as well as its challenges and limitations. Working Group Summary This document contains text that was originally included in the base stateful PCE protocol specification. The WG decided to split the text into a separate applicability statement to allow additional use cases to be contributed and the whole document edited in parallel. Use cases were contributed by several WG members for a variety of MPLS and GMPLS applications. There has been no particular controversy and the consensus behind the document is good. Document Quality The text has been worked on over a long period and has been scrutinized by several reviewers. There are several stateful PCE implementations covering the full range of scenarios presented by this applicability statement. Personnel Who is the Document Shepherd for this document? Jonathan Hardwick Who is the Responsible Area Director? Deborah Brungard
