OPTICAL TRANSCEIVER, OPTICAL COMMUNICATION SYSTEM, OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSCEIVER SETTING METHOD, AND COMPUTER READABLE MEDIUM

Please delete the Abstract of the Disclosure, and replace it with the following: A wavelength variable optical transmitting unit is configured to be able to transmit a first channel setting optical signal including first channel information indicating a channel for the first channel setting optical signal. A wavelength variable optical receiving unit is configured to, when the optical transceiver receives a second channel setting optical signal from another optical transceiver, transfer second channel information contained in the second channel setting optical signal and indicating a channel for the second channel setting optical signal. A control unit is configured to control the wavelength variable optical transmitting unit and the wavelength variable optical receiving unit. The control unit sets, based on the second channel information that the wavelength variable optical receiving unit has transferred, a first channel indicated by the second channel information as a channel through which the wavelength variable optical receiving unit receives an optical signal.