TRANSMISSION SYSTEM, RECEIVING UNIT AND FLUCTUATION MEASUREMENT METHOD

摘要

In the present invention, a transmission system is provided with a transmission unit that sends CC/CV OAM packets at fixed intervals and a receiving unit (13) that receives the CC/CV OAM packets. The receiving unit (13) is provided with the following: an estimated arrival time calculation unit (23) that calculates an estimated arrival time for each CC/CV OAM packet assuming no fluctuation; an arrival time measurement unit (22) that measures the actual arrival time of a CC/CV OAM packet; a time difference calculation unit (24) that calculates the time difference between the estimated arrival time and the arrival time for each CC/CV OAM packet; and a fluctuation time determination unit (25) that determines a fluctuation time for each CC/CV OAM packet on the basis of the time difference.