處理交換機光路時，特別麻煩，因爲手頭也沒光功率測量計，所以把光模塊接入後，如果undo shut後，還不懂，就比較難搞了
現在在網上找到可以查看光功率的命令，分享下
[H3C]_hidecmd
Now you enter a hidden command view for developer's testing, some commands may
affect operation by wrong use, please carefully use it with our engineer's
direction.
[H3C-hidecmd]_display transceiver ?
diagnosis Diagnostic information
interface Display by interface
register Register information
[H3C-hidecmd]_display transceiver diagnosis interface GigabitEthernet 1/0/25
GigabitEthernet1/0/25 transceiver diagnostic information:
Current diagnostic parameters:
Temp(°C) Voltage(V) Bias(mA) RX power(dBm) TX power(dBm)
54 3.41 17.65 -7.45 -5.85
Alarm thresholds:
Temp(°C) Voltage(V) Bias(mA) RX power(dBm) TX power(dBm)
High 85 3.70 65.00 0.97 0.97
Low -10 2.90 10.00 -40.00 -13.01
Parameters when first used on 2000.4.26:
Temp(°C) Voltage(V) Bias(mA) RX power(dBm) TX power(dBm)
39 3.41 16.35 -7.21 -5.85
Total account of alarms: 15
Latest occurrence of different alarms:
Type Date Description
Temp N/A N/A
Voltage N/A N/A
Bias N/A N/A
RX power 2014.04.09 RX power low
TX power N/A N/A
TX N/A N/A
RX N/A N/A
OTHER N/A N/A
Latest three alarms:
Date Description
2014.04.07 RX power low
2014.04.09 RX power low
2014.04.09 RX power low
以下是端口沒有插上模塊的
[H3C-hidecmd]display transceiver diagnosis interface GigabitEthernet 1/0/27
Error: The transceiver is absent.
[H3C-hidecmd]display transceiver diagnosis interface GigabitEthernet 1/0/28
Error: The transceiver is absent.