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	H3C交换机查看光功率、收发光情况的命令/方法
处理H3C的交换机光路时,特别麻烦,因为手头也没光功率测量计,所以把光模块接入后,如果undo shut后,还不懂,就比较难搞了。现在在网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
 
以下是端口没有插上模块的:
- [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.