+7(495) 797-3311 www.qtech.ruМосква, Новозаводская ул., 18, стр. 193Brief alarm information:RX loss of signalRX power lowDetail diagnostic and threshold information:Diagnostic ThresholdRealtime Value High Alarm Low Alarm High Warn Low Warn------------ ----------- ----------- ------------ ---------Temperature (°C) 33 70 0 70 0Voltage (V) 7.31 10.00 0.00 5.00 0.00Bias current (mA) 3.11 10.30 0.00 5.00 0.00RX Power (dBM) -30.54(A-) 9.00 -25.00(-34) 9.00 -25.00TX Power (dBM) -1.01 9.00 -12.05 9.00 -10.00Ethernet 1/21 transceiver threshold-violation information:Transceiver monitor is disabled. Monitor interval is set to 30 minutes.The last threshold-violation doesn’t exist.13.4 DDM TroubleshootingIf problems occur when configuring DDM, please check whether the problem is caused by thefollowing reasons:Ensure that the transceiver of the fiber module has been inserted fast on the port, or else DDMconfiguration will not be shown.Ensure that SNMP configuration is valid, or else the warning event cannot inform the networkmanagement system.Because only some boards and box switches support SFP with DDM or XFP with DDM,ensure the used board and switch support the corresponding function.When using show transceiver command or show transceiver detail command, it cost muchtime due to the switch will check all ports, so it is recommended to query the monitoringinformation of the transceiver on the specified port.Ensure the threshold defined by the user is valid. When any threshold is error, the transceiverwill give an alarm according to the default setting automatically.