RECEPTION DEVICE, TRANSMISSION DEVICE, OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND MONITORING METHOD

摘要

A reception device (20) has a reception unit (21), an extraction unit (222), and an output unit (223). The reception unit (21) receives lane signals transmitted via each of a plurality of lanes (L1, L2) from a transmission device (30) that distributes an OTU frame to multiple lane signals. The extraction unit (222) extracts data contained in the overhead of the OTU frame from the lane signals received by the reception unit (21) for each of the lanes (L1, L2). The output unit (223) outputs information pertaining to the data extracted by the extraction unit (222) as information indicating the communication state of the lanes (L1, L2) transmitting the lane signals from which data was extracted by the extraction unit (222).