Method for optimising a mostly optical network

H - Electricity – 04 – L

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H04L 12/56 (2006.01) H04B 10/20 (2006.01) H04J 14/02 (2006.01) H04Q 11/00 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2264027

Method for forming the virtual topology (21-45) of an ATM-layer where the ATM- layer is carried over an optical network (1) where inputs such as the physical topology (2-8, 11-16) and constraints of physical nature are given, thereafter forming node-pairs with end-to-end connections according to some known optimal routing algorithm, and finally applying a non-deterministic mathematical approach to obtain an optimal virtual topology with the objective of minimising the need for necessary electrical processing (50, 60, 70, 80) in the nodes (11-16) of the network (1).

La présente invention concerne un procédé de constitution de la topologie virtuelle (21-45) d'une couche ATM. Ce procédé consiste à loger la couche ATM dans un réseau optique (1) et à spécifier des entrées telles que la topologie physique (2-8, 11-16) et les contraintes de nature physique. Le procédé consiste ensuite à apparier les noeuds et les connexions de bout-en-bout en fonction de certains algorithmes connus d'optimisation des acheminements. Le procédé consiste enfin à recourir à une procédure mathématique non déterministe donnant une topologie virtuelle optimale visant à réduire à un minimum les besoins de traitement électrique (50, 60, 70, 80) au niveau des noeuds (11-16) du réseau (1).

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