[Pce] I-D ACTION:draft-ietf-pce-pcecp-interarea-reqs-03.txt

A New Internet-Draft is available from the on-line Internet-Drafts 
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This draft is a work item of the Path Computation Element Working Group of the IETF.

	Title		: PCE Communication Protocol (PCECP) Specific Requirements for Inter-Area (G)MPLS Traffic Engineering
	Author(s)	: J. Le Roux
	Filename	: draft-ietf-pce-pcecp-interarea-reqs-03.txt
	Pages		: 10
	Date		: 2006-10-23

For scalability purposes a network may comprise multiple IGP areas. 
   An inter-area TE-LSP is an LSP that transits through at least two IGP 
   areas. In a multi-area network, topology visibility remains local to 
   a given area, and a head-end LSR cannot compute alone an inter-area 
   shortest constrained path. One key application of the Path 
   Computation Element (PCE) based architecture is the computation of 
   inter-area TE-LSP paths. This document lists a detailed set of PCE 
   Communication Protocol (PCECP) specific requirements for support of 
   inter-area TE-LSP path computation. It complements generic 
   requirements for a PCE Communication Protocol.

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