Process for routing virtual links in a frame-switching network

Details Process for routing virtual links in a frame-switching network Process for routing virtual links in a frame-switching network

H - Electricity

04

L

H04L 12/18 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2654969

The invention relates to a method of routing virtual links in a frame-switching network comprising a plurality of source and/or destination terminals of said frames, frame switches being connected together by physical connections, each virtual link being defined, for a point-to-point type, by a path through said network between a source terminal and a destination terminal and, for a multipoint type, by a plurality of paths through said network between a source terminal on the one hand and a plurality of destination terminals on the other hand. The method performs the routing of the links by minimizing at least one cost function over a set of solutions satisfying at least one predetermined topological constraint.

L'invention concerne un procédé de routage de liens virtuels dans un réseau à commutation de trames comprenant une pluralité de terminaux sources et/ou destinataires desdites trames, des commutateurs de trames étant reliés entre eux par des liaisons physiques, chaque lien virtuel étant défini, pour un type point à point, par un chemin à travers ledit réseau entre un terminal source et un terminal destinataire et, pour un type multipoint, par une pluralité de chemins à travers ledit réseau entre un terminal source d'une part et une pluralité de terminaux destinataires, d'autre part. Le procédé effectue le routage des liens en minimisant au moins une fonction de coût sur un ensemble de solutions satisfaisant à au moins une contrainte topologique prédéterminée.

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