Network-system, management-system, method and computer program product

US7289531B2 · kind B2 · utility

Assignee

• ALCATEL · FR

Inventors

• Sven Van Den Bosch · Lochristi, BE
• Gert Van Hoey · Gentbrugge, BE
• Olivier Didier Duroyon · McLean, US
• Guido August Luyts · Ham, BE
• Jan VAN BOGAERT · Keerbergen, BE
• An Maria Irene Deckers · Overijse, BE
• Paloma De La Vallee · Aartselaar, BE
• Nathalie Maria Cornelia Degrande · Overmere, BE
• Hans De Neve · Turnhout, BE

Key dates

• Filing date: Jun 26, 2002
• Grant date: Oct 30, 2007
• Expiry date: Apr 12, 2025

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L41/00
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Provided is a management-system for use in a network environment including a first and second IP networks and a transport network which connects the first and second IP networks. The management system includes: a converter for optimizing a path in an IP-domain via a first algorithm and for converting IP-traffic-signals into transport-traffic-signals; and an optimiser which optimizes a topology that overlays the transport network by optimizing channels in the transport-network according to at least one second algorithm. The first algorithm is an IP multi protocol label switching routing optimization algorithm. The second algorithm is an algorithm based on a plurality of constraints and objectives such as a flow conservation constraint, logical link capacity constraint, optical router port constraint, wavelength cost objective, optical router port occupation objective, advertised link number objective, spare capacity objective, wavelength re-use benefit objective and optical service level agreement constraint.