Failure restoration system suitable for a large-scale network

H - Electricity – 04 – L

Patent

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Details

H04L 29/14 (2006.01) H04L 12/56 (2006.01) H04Q 3/00 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2220469

In a failure restoration system comprising a distributed hierarchical routing section which is adapted to set up a main path and previously determine an alternate path for the main path in a network, an alternate path selection section is adapted to obtain complete source route information for the main path when it attempts to set up the main path. The alternate path selection section adds the complete source information to a SETUP signaling message for setting up the alternate path, thereby provides a physical alternate path as much different as possible from the main path.

L'invention est un dispositif de remise en marche après une défaillance comportant une section d'acheminement hiérarchique répartie qui est adaptée pour établir un trajet principal ainsi qu'un trajet de rechange dans un réseau, et une section de sélection de trajet de rechange qui est adaptée pour obtenir une information complète sur la source en rapport avec le trajet principal quand il tente d'établir ce trajet. La section de sélection de trajet de rechange ajoute l'information complète sur la source dans un message de signalisation SETUP servant à établir le trajet de rechange, ce qui procure un trajet de rechange aussi physiquement différent que possible du trajet principal.

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