ROUTE DETERMINATION APPARATUS AND TRANSFER ROUTE DETERMINATION METHOD

摘要

The processor obtains a process time, which is a time taken for processing a control message when the control device requests that a target processing device, selected from among the plurality of processing devices, process a control message. When the process time has become longer than a first threshold, the processor determines which of a first and a second congestion has occurred based on whether the process time has become longer than a second threshold, which is greater than the first threshold. The first congestion occurs in the transfer devices used for a communication between the control device and the target processing device. The second congestion occurs in the target processing device. The network connection device transmits a request message requesting that a transfer route for which it has been determined that the control message is not processed in a device in which the congestion has occurred be set.