I-D ACTION:draft-oki-pce-inter-layer-app-00.txt

A New Internet-Draft is available from the on-line Internet-Drafts directories.

	Title		: PCE Applicability for Inter-Layer MPLS and GMPLS Traffic Engineering 

	Author(s)	: E. Oki, et al.
	Filename	: draft-oki-pce-inter-layer-app-00.txt
	Pages		: 16
	Date		: 2006-2-9

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). 

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