Patent ID: 11159456

Abstract:
It is possible to perform transfer with low latency. The control apparatus includes a routing control unit, transmission queues, and a plurality of controllers. The routing control unit includes a buffer, a normal transmission unit configured to output, among inputted frames, a frame other than a frame to be retransmitted to the transmission queue of the controller corresponding to a network serving as a transfer destination, and, when the controller corresponding to the network serving as the transfer destination is in a full state in which no more frames cannot be stored in the transmission queue, specify the inputted frame as the frame to be retransmitted and store the inputted frame in the buffer, and a signal handling unit configured to, when a cancellation signal indicating that the full state has been canceled is received from any of the plurality of controllers, output, to the transmission queue of the controller that has transmitted the cancellation signal, the frame to be retransmitted that is to be transferred to the network corresponding to the controller that has transmitted the cancellation signal. When the full state is canceled, the controller transmits the cancellation signal to the signal handling unit.