TRANSMISSION DEVICE, TRANSMISSION SYSTEM, AND TRANSMISSION METHOD

摘要

A first transmission device transmits a signal to a third transmission device by using an active line and a spare line. The first transmission device includes a CRC generator and an SN adder. The CRC generator calculates the CRC value of the signal. The SN adder stores, in a FCS byte filed in the signal, the FCS calculated value obtained by adding the SN representing consecutiveness of the signal to the CRC value. Furthermore, the first transmission device outputs the signal in which the FCS calculated value is stored to the second transmission device by using the active line and the spare line.

主权项

1. A transmission device that transmits a signal to an opposing device by using an active line and a spare line, the transmission device comprising:
a calculation unit that calculates an error code value of the signal; a storage control unit that identifies the signal per signal and stores, in a predetermined field in the signal, a calculated value obtained by adding a sequential number that represents consecutiveness of the signal to the error code value; and an output unit that outputs the signal in which the calculated value is stored to the opposing device by using the active line and the spare line.