68Verifying and diagnosing transceiver modulesCommonly used transceiver modulesTransceiver type Application scenariosWhether can be anoptical transceivermoduleWhether can be anelectricaltransceiver moduleSFP (Small Form-factorPluggable)Generally used for100M/1000M EthernetinterfacesYes NoXFP (10-Gigabit smallForm-factor Pluggable)Generally used for 10G Ethernetinterfaces Yes NoVerifying transceiver modulesTo verify transceiver modules, you can use the display transceiver interface command to display the keyparameters of the transceiver modules, including transceiver module type, connector type, centralwavelength of the laser sent, transfer distance, and vendor name.To display the transceiver module information:Task Command RemarksDisplay key parameters of the transceivermodule in a specified interface.display transceiver interface[ interface-type interface-number ]Available for all transceivermodulesDiagnosing transceiver modulesThe firewall provides the alarm function for transceiver modules for easy diagnosis.To display the alarm information about transceiver modules:Task Command RemarksDisplay the current alarminformation of the transceivermodule in a specified interface.display transceiver alarm interface[ interface-type interface-number ]Available for all transceivermodulesTroubleshooting system exceptionsConfiguring the exception handling methodsYou can use one of the following methods to handle system exceptions:• reboot—The firewall reboots the failed MPU to recover from the error condition.• maintain—The MPU stays in the error condition so you can collect complete data, including errormessages, for diagnosis. In this approach, you must manually reboot the firewall
