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Extensions to the Path Computation Element communication Protocol (PCEP) for Inter-Layer MPLS and GMPLS Traffic Engineering

Document type: Expired Internet-Draft (pce WG)
Document stream: IETF
Last updated: 2014-07-27 (latest revision 2014-01-23)
Intended RFC status: Unknown
Other versions: (expired, archived): plain text, pdf, html

IETF State: WG Document
Document shepherd: No shepherd assigned

IESG State: Expired
Responsible AD: (None)
Send notices to: No addresses provided

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


The Path Computation Element (PCE) provides path computation functions in support of traffic engineering in Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) networks. MPLS and GMPLS networks may be constructed from layered service networks. It is advantageous for overall network efficiency to provide end-to-end traffic engineering across multiple network layers through a process called inter-layer traffic engineering. PCE is a candidate solution for such requirements. The PCE communication Protocol (PCEP) is designed as a communication protocol between Path Computation Clients (PCCs) and PCEs. This document presents PCEP extensions for inter-layer traffic engineering.


Eiji Oki <>
Tomonori Takeda <>
Adrian Farrel <>
Fatai Zhang <>

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