PCEP Extensions for Stateful PCE

Document Type Replaced Internet-Draft (individual)
Authors Jan Medved  , Ina Minei  , Edward Crabbe  , Robert Varga 
Last updated 2012-04-11 (latest revision 2012-01-22)
Replaced by RFC 8231
Stream (None)
Intended RFC status (None)
Expired & archived
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Stream Stream state (No stream defined)
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IESG IESG state Replaced by draft-ietf-pce-stateful-pce
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


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 synchronization or 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 this functionality, providing stateful control of Multiprotocol Label Switching (MPLS) Traffic Engineering Label Switched Paths (TE LSP) via PCEP.


Jan Medved (jmedved@cisco.com)
Ina Minei (ina@juniper.net)
Edward Crabbe (edc@google.com)
Robert Varga (robert.varga@pantheon.sk)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)