SYSTEM, METHOD AND PROGRAM FOR DETERMINING FAILED ROUTERS IN A NETWORK

摘要

System, method and program product for determining a cause of a failure of a communication from a source device to a destination device. A preferred route from the source device to the destination device comprises a series of routers in a forward order. First program instructions determine one or more initial routers in the series in the forward order from the source device toward the destination device. A last of the initial routers does not designate a next router in the series in the forward order toward the destination device. Second program instructions determine the series of routers in a reverse order from the destination device toward the source device. Third program instructions determine from the series of routers in reverse order as determined by the second program instructions which router the last of the initial routers should designate as its next router in the forward order toward the destination device, and send a notification as to which router the last of the initial routers should designate as its next router in the forward order toward the destination device.