Patent ID: 6496510
Filing Date: 2002-12-17
Classification: H04L

Abstract:
A router device comprising a plurality of router node devices connected to networks respectively, wherein said plurality of router node devices are interconnected via internal transmission lines that are different from said networks, and each of said plurality of router node devices within said router device has a same ID allocated in said networks, each of said plurality of router node devices comprising:means for connecting to said networks; a routing table describing paths via which packets are forwarded; forwarding means for forwarding packets between one network and another network, both of which networks are connected to the router node device, and for forwarding packets between the network connected to the router node device and the network connected to some other router node device of the router device via said some other router node device, said packet forwarding being performed according to the routing table; network information collection means for collecting network information by routing protocols from some other router device connected to the network, not via other router node devices, said network information being of a network to which said other router device is connected; generating means for generating a network connection information database using the information of said network thus collected; sending means for sending, via said transmission lines, said network connection information database to some other router node device that is provided with the same ID; receiving means for receiving from said some other router node device having the same ID, via said internal transmission lines, said network connection information database generated by said some other router node device having the same ID; integrating means for integrating said network connection information database generated by one router node device and different network connection information database received from some other router node device; and routing table generation means for generating the routing table based on the network connection information database thus integrated.