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Framework for PCE-Based Inter-Layer MPLS and GMPLS Traffic Engineering

Document Type Replaced Internet-Draft (individual)
Expired & archived
Author Eiji Oki
Last updated 2008-04-16 (Latest revision 2006-04-05)
Replaced by RFC 5623
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-pce-inter-layer-frwk
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


A network may comprise of multiple layers. It is important to globally optimize network resources utilization, taking into account all layers, rather than optimizing resource utilization at each layer independently. This allows better network efficiency to be achieved through a process that we call inter-layer traffic engineering. The Path Computation Element (PCE) can be a powerful tool to achieve inter-layer traffic engineering. This document describes a framework for the PCE-based path computation architecture to inter-layer MPLS and GMPLS traffic engineering. It provides suggestions for the deployment of PCE in support of multi-layer networks. This document also describes network models where PCE performs inter-layer traffic engineering, and the relationship between PCE and a functional component called the Virtual Network Topology Manager (VNTM).


Eiji Oki

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