G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 11/14 (2006.01)
Patent
CA 2337068
A network comprises a plurality of switching nodes interconnected by communication links for transferring digital packets. At least one switching node in the network pre-establishes a bypass virtual circuit through the network to bypass an element of the network, such as a switching node or a communication link, in the network. The bypass virtual circuit defines a path to another switching node in the network. The first switching node uses the bypass virtual circuit so constructed in forwarding of a packet in the event of a failure or other malfunction of the element if the first switching node would otherwise transfer the packet over that element.
L'invention porte sur un réseau comportant plusieurs noeuds de commutation reliés par des liaisons de communication servant à transférer des paquets numériques. L'un au moins des noeuds de communication du réseau préétablit dans le réseau un circuit virtuel de dérivation contournant l'un des éléments du réseau tel que par exemple un noeud de commutation ou une liaison de communication. Le circuit virtuel de dérivation constitue une voie aboutissant à un autre noeud de commutation du réseau. Le premier noeud de commutation utilise le circuit virtuel de dérivation ainsi créé pour transférer en cas de panne ou autre défectuosité de l'élément un paquet que le noeud de commutation aurait sinon transféré via cet élément.
Callon Ross W.
Maison Thierry
Fetherstonhaugh & Co.
Ironbridge Networks Inc.
Pluris Inc.
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