PCE Applicability for Inter-Layer MPLS and GMPLS Traffic Engineering

Document Type Expired Internet-Draft (individual)
Author Eiji Oki 
Last updated 2006-02-09
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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 the applicability of 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 (oki.eiji@lab.ntt.co.jp)

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