US 11,956,146 B2
Controller, network system, and flow management method
Makoto Kubomi, Tokyo (JP); Ryuma Matsushita, Tokyo (JP); Daisuke Takita, Tokyo (JP); and Yoshifumi Hotta, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
Filed on Jul. 20, 2022, as Appl. No. 17/869,479.
Application 17/869,479 is a continuation of application No. PCT/JP2020/010386, filed on Mar. 10, 2020.
Prior Publication US 2022/0360524 A1, Nov. 10, 2022
Int. Cl. H04L 45/02 (2022.01); H04L 45/00 (2022.01); H04L 45/42 (2022.01)
CPC H04L 45/38 (2013.01) [H04L 45/02 (2013.01); H04L 45/42 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A controller comprising:
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.