Patent ID: 11956146
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A network system comprising: a controller which manages a communication flow; and a plurality of switches which forward a frame of each communication flow,
wherein the controller comprises:
processing circuitry
to receive an addition requesting frame for requesting addition of a new flow which is a new communication flow;
to perform, using a network-information database in which a schedule and a path of each existing flow which is an existing communication flow are registered, a first search for searching for a schedule and a path assignable to the new flow without the schedule and the path of each existing flow being changed, when the addition requesting frame is received;
to perform a second search for changing the schedule and the path of each existing flow and searching for the schedule and the path assignable to the new flow, using the network-information database, when the schedule and the path assignable to the new flow have not been found by the first search; and
to transmit an addition responding frame for responding to the addition requesting frame.