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Optimal virtual topology design using bus-label switched paths

Publiceringsår: 2007
Språk: Engelska
Sidor: 1001-1010
Publikation/Tidskrift/Serie: IEEE Journal on Selected Areas in Communications
Volym: 25
Nummer: 5
Dokumenttyp: Artikel i tidskrift
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.


Despite an observable trend in reducing the number of layers in core and metropolitan area networks, still the optimal design of multi-layer networks (like IP over WDM) remains a important issue as a means to reduce CAPEX and OPEX. In multi-layer networks, usually a connection oriented transport network (like WDM) is used to deploy a layout for optimal transport of traffic. In today's networks, the layouts are based on point to point LSPs. We will show here that by using a novel concept named bus-LSPs, we can achieve some significant savings for the operator, both in terms of CAPEX and OPEX. We also introduce a heuristic algorithm to design optimal layouts, a provide a quantitative evaluation.


  • Electrical Engineering, Electronic Engineering, Information Engineering
  • layout
  • virtual topology design
  • bus-LSP


  • ISSN: 1558-0008

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