Control method, information processing device, and communication system

An information processing device that performs routing of a network including a plurality of switches, comprising:

• a memory configured to store information on a plurality of temporary routes set for each kind of service;
• a processor coupled to the memory and configured to:
• receive a routing request from a switch among the plurality of switches;
• extract, from the memory, a temporary route corresponding to a service related to the routing request when it is determined that processing congestion of the information processing device occurs;
• set the extracted temporary route for one or more related switches among the plurality of switches;
• determine a route corresponding to the service, based on a predetermined condition, when it is determined that the processing congestion of the information processing device has subsided;
• and
• set the determined route for the one or more related switches among the plurality of switches.

A communication system, comprising:

• a plurality of switches;
• and
• an information processing device that executes routing of a network including the plurality of switches,
• wherein the information processing device includes
• a memory configured to store information on a plurality of temporary routes set for each kind of service, and
• a processor coupled to the memory and configured to:
• receive a routing request from a switch among the plurality of switches,
• extract, from the memory, a temporary route corresponding to a service related to the routing request when it is determined that processing congestion of the information processing device occurs,
• set the extracted temporary route for one or more related switches among the plurality of switches,
• determine a route corresponding to the service, based on a predetermined condition, when it is determined that processing congestion of the information processing device has subsided, and
• set the determined route for the one or more related switches among the plurality of switches.