The set interface optics-monitor enable command enables or disables optical module monitoring and alerting for all switch interfaces. You can check monitoring information of optical modules in the run show interface diagnostics optics command result and in the log file. When you plan to replace a configured optical module with a different type of optical module, you must clear the configurations of the old module before installing the new optical module. Therefore, optical interfaces must connect to transmission media before configuration of these functions. Sometimes the installation and. By default, Cisco switches perform authenticity validation on inserted optical modules. If a module is identified as non-Cisco original, the switch may shut down the port, trigger an alarm, or display a warning message. It takes the device name (like swp1) as an argument. See man ethtool(8) for details.
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