Importance

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Abstract

A router device is provided with a plurality of router node devices interconnected via internal transmission lines, in which each of the plurality of router node devices comprises a unit for connecting to a plurality of networks; a routing table describing paths via which packets are forwarded; a forwarding unit for forwarding a packet between one network and another, and for forwarding the packet between the network connected to the router node device and the network connected to some other router node device of the router device via some other router node device, according to the routing table; a routing information collection unit for collecting routing information from each router device connected to the network, not via other router node devices, to the router node device to create a routing table in each router device, the routing information being information to be exchanged among router devices, a distribution unit for distributing the collected routing information to other router node devices via the internal transmission lines; and a routing table generation unit for generating the routing table based on the collected routing information and the routing information distributed from the other router node devices.

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First Claim