Optical Receive Power Warning
we cannot configure the optical transmit power of the SFP. Though we can check the receive power level received by peer through the command: show interface transceiver detail
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Transmit power is typically good when it is in the 6 dB range between -1 and -7 dBm. This module describes the command line interface (CLI) commands for configuring Optics on the Cisco 8000 Series Routers. When optical modules operate on a switch, it is usually necessary to read the module's internal information to understand its working status—such as connection status and real-time metrics like optical power and temperature. Looking at the power level on the right SFP RX power, you are viewing the light energy that is created by the left SFP as it passes through the cable and reaches the right SFP and the opposite way for the green channel.
