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.

主权项

1. A route determination apparatus in a communication system including a plurality of transfer devices, a plurality of processing devices and a control device, the route determination apparatus comprising:
a processor; and a network connection device that conducts transmission and reception of a message, wherein the processor:
obtains a process time, which is a time taken to process a control message, when the control device requests that a target processing device selected from among the plurality of processing devices process the control message including a process-target packet; anddetermines, when the process time has become longer than a first threshold, which of a first congestion and a second congestion has occurred based on whether or not the process time has become longer than a second threshold, which is greater than the first threshold, the first congestion occurring in the transfer devices used for a communication between the control device and the target processing device and the second congestion occurring in the target processing device, and 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.