ROUTER MONITOR SYSTEM FOR DATA TRANSMISSION SYSTEM USING NETWORK DISPATCHER FOR HOST CLUSTER

摘要

PURPOSE: A router monitor system for data transmission system using network dispatcher for host cluster is provided to exchange packetized data through an IP network as a medium between an arbitrary IP host in a cluster of IP hosts and a plurality of workstations. CONSTITUTION: Each IP host has at least an IP layer and a network layer. The IP host is connected to the IP network by a pair of routers(26 and 28) and a network dispatcher(34) through a layer-2 network(24) as the interface of the IP network(22). The network dispatcher 34 receives all incoming flows from workstations and dispatches them between host clusters. This system includes a monitor device including a means for, included in the host cluster, monitoring at least the availability of the routers and a means for broadcasting availability information on the routers to individual hosts in the host cluster through the network dispatcher.