Symptom

No Alarm is there in show controllers optics on port 0/0/2/1 with the power level -35.22 dBm while the other device has the LOW-RX-PWR on port 0/0/1/0 with the -30.45 dBm Power. RTR1#show controllers optics 0/0/2/1 Controller State: Down <<<<<<<<<< Transport Admin State: In Service Laser State: On LED State: Red Optics Status Optics Type: CFP2 DWDM DWDM carrier Info: C BAND, MSA ITU Channel=43, Frequency=194.00THz, Wavelength=1545.322nm Alarm Status: ------------- Detected Alarms: None <<<<<<<<<<<<< No Alarm LOS/LOL/Fault Status: Alarm Statistics: ------------- HIGH-RX-PWR = 0 LOW-RX-PWR = 35 HIGH-TX-PWR = 0 LOW-TX-PWR = 1 HIGH-LBC = 0 HIGH-DGD = 0 OOR-CD = 0 OSNR = 0 WVL-OOL = 0 MEA = 0 IMPROPER-REM = 0 TX-POWER-PROV-MISMATCH = 0 Laser Bias Current = 0.0 % Actual TX Power = -1.49 dBm RX Power = -35.22 dBm <<<<<<<<<<<< Power Level -35 RTR2#sh controllers optics 0/0/1/0 Controller State: Up <<<<<<<<<<< Transport Admin State: In Service Laser State: On LED State: Green Optics Status Optics Type: CFP2 DWDM DWDM carrier Info: C BAND, MSA ITU Channel=43, Frequency=194.00THz, Wavelength=1545.322nm Alarm Status: ------------- Detected Alarms: LOW-RX-PWR <<<<<<<<<<<<< Alarm detected LOS/LOL/Fault Status: Alarm Statistics: ------------- HIGH-RX-PWR = 0 LOW-RX-PWR = 617 <<<<<<<< Number of times HIGH-TX-PWR = 0 LOW-TX-PWR = 1 HIGH-LBC = 0 HIGH-DGD = 0 OOR-CD = 0 OSNR = 0 WVL-OOL = 0 MEA = 0 IMPROPER-REM = 0 TX-POWER-PROV-MISMATCH = 0 Laser Bias Current = 0.0 % Actual TX Power = -1.49 dBm RX Power = -30.45 dBm <<<<<<<<<<<<<< power level -30

Conditions

Interface state stays UP with traffic and did not show any alarm in Alarm Status even with -35 Dbm power level

Workaround

Use "show controller coherentDSP " and/or "show alarms" CLI to co-relate the alarms.

Further Problem Description