Patent ID: 6577634
Filing Date: 2003-06-10
Classification: H04L

Abstract:
A clustered router apparatus connected to a network, said clustered router apparatus comprising a plurality of routers,each of said plurality of routers being connected to an external network and said plurality of routers constituting one router logically for another apparatus connected to said external network, said plurality of routers being connected with each other through routes different from said network, each of said plurality of routers comprising: routing protocol means for executing a routing protocol to generate a routing table used to decide a forwarding destination of a packet to be relayed; and network information processing means for performing a processing which makes the other routers within the clustered router apparatus have identical network information for generating said routing table by said routing protocol means; the network information processing means of one of said plurality of routers providing an instruction packet for instructing a processing for making the other routers have said network information and transferring said instruction packet to the other routers through said different routes; and the network information processing means of the other routers instructing a processing according to the content of said instruction packet to said routing protocol means within the corresponding other routers.