Optical communications network

Details Optical communications network Optical communications network

H - Electricity

04

L

H04L 12/43 (2006.01) H04J 14/02 (2006.01) H04L 12/42 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2371127

In a communications network, there is provided a ring topology with at least two duplicate transmission paths and a plurality of nodes connected to the ring network. Nodes output onto the ring network packets addressed to one or more nodes of the network. Switch means bridges the transmission paths and diverts packets from one path to the other in the event of failure of a transmission path. Each node is assigned a network address for each transmission path. When a node receives a transit packet, the priority assigned to the packet is determined, and when it has a low priority then the transit packet is removed and a higher priority packet is inserted in the resulting vacancy.

Dans un réseau de communication, un noeud reçoit un paquet de transit. La priorité attribuée au paquet de transit est déterminée, et lorsqu'il a une priorité faible, le paquet de transit est alors enlevé et un paquet à priorité plus importante est inséré dans l'espace vacant résultant.

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