{"draft":"draft-ietf-pce-stateful-pce-21","doc_id":"RFC8231","title":"Path Computation Element Communication Protocol (PCEP) Extensions for Stateful PCE","authors":["E. Crabbe","I. Minei","J. Medved","R. Varga"],"format":["ASCII","HTML"],"page_count":"57","pub_status":"PROPOSED STANDARD","status":"PROPOSED STANDARD","source":"Path Computation Element","abstract":"The Path Computation Element Communication Protocol (PCEP) provides\r\nmechanisms for Path Computation Elements (PCEs) to perform path\r\ncomputations in response to Path Computation Client (PCC) requests.\r\n\r\nAlthough PCEP explicitly makes no assumptions regarding the\r\ninformation available to the PCE, it also makes no provisions for PCE\r\ncontrol of timing and sequence of path computations within and across\r\nPCEP sessions.  This document describes a set of extensions to PCEP to\r\nenable stateful control of MPLS-TE and GMPLS Label Switched Paths\r\n(LSPs) via PCEP.","pub_date":"September 2017","keywords":["Stateful PCE"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":["RFC8786","RFC9353","RFC9756"],"see_also":[],"doi":"10.17487\/RFC8231","errata_url":"https:\/\/www.rfc-editor.org\/errata\/rfc8231"}