Path Computation Element (PCE) Protocol Extension for Stateful PCE Usage in GMPLS Networks

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Document Type Expired Internet-Draft (individual)
Last updated 2013-08-25 (latest revision 2013-02-21)
Replaced by draft-ietf-pce-pcep-stateful-pce-gmpls
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The Path Computation Element (PCE) facilitates Traffic Engineering (TE) based path calculation in large, multi-domain, multi-region, or multi-layer networks. [Stateful-PCE] provides the fundamental PCEP extensions needed to support stateful PCE functions, without specifying the technology-specific extensions. This memo provides extensions required for PCE communication protocol (PCEP) so as to enable the usage of a stateful PCE capability in GMPLS networks.


Xian Zhang (
Young Lee (
Fatai Zhang (
Ramon Casellas (
Oscar de Dios (

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