localhost#show int ethernet 18 transceiver
If device is externally calibrated, only calibrated values are printed.
N/A: not applicable, Tx: transmit, Rx: receive.
mA: milliamperes, dBm: decibels (milliwatts).
Bias Optical Optical
      Temp       Voltage  Current  TxPower  RxPower
Port  (Celsius)  (Volts)  (mA）    (dBm）   (dBm）    Last Update
----  ---------  -------  -------  -------  --------  ------------------
Et18  30.83      3.32     42.77    -0.55    -1.59     0:00:01 ago