A method and device for partitioning physical netword resources

H - Electricity – 04 – L

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H04L 12/24 (2006.01) H04Q 3/00 (2006.01) H04Q 3/66 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2192793

A method for partitioning physical transmission resources of a physical network is provided. At first, a set of logical networks is established on top of the physical network. The logical networks comprise nodes and logical links extending between the nodes so as to form the logical networks. The logical links are used by routes. Next, the capacities of the logical links of the logical networks are determined such that the route blocking probability on each individual route in each one of the logical networks is less than or equal to a maximum allowed blocking probability, given for each individual route. This is realized by distributing, for each individual route, the route blocking evenly among the logical links used by the individual route. Finally, the physical transmission resources are allocated among the logical links of the logical networks according to the determination. In addition, a device for partitioning physical transmission resources of a physical network is also disclosed.

Procédé de répartition des ressources physiques de transmission d'un réseau physique. Dans un premier temps, on établit sur le réseau physique un ensemble de réseaux logiques. Ces réseaux logiques comportent des noeuds et des liaisons logiques les reliant entre eux de manière à former les réseaux logiques. Ces liaisons logiques sont utilisées par des voies. Ensuite, on détermine les capacités des liaisons logiques des réseaux logiques de sorte que la probabilité de blocage de chaque voie individuelle dans chacun des réseaux logiques est égale ou inférieure à une valeur maximale admissible de la probabilité de blocage, et ce pour chaque voie individuelle. A cette fin, on répartit de manière homogène, pour chaque voie individuelle, le blocage de voie parmi les liaisons logiques utilisées par ladite voie. Enfin, on attribue les ressources physiques de transmission aux différentes liaisons logiques des réseaux logiques en fonction de ladite détermination. On a également prévu un dispositif de répartition des ressources physiques de transmission d'un réseau physique.

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