可以在交换机上通过命令查看,举例如下:
以太网交换机也可以通过命令来查看光模块上的衰减,如H3C交换机,通过命令dis transceiver diagnosis interface G x/x/x来查看,如下:
[waiwang-center-h3c7510] dis transceiver diagnosis interface GigabitEthernet 0/0/6
GigabitEthernet0/0/6 transceiver diagnostic information:
Current diagnostic parameters:
Temp(°C) Voltage(V) Bias(mA) RX power(dBm) TX power(dBm)
43 3.49 8.11 -5.18-4.71
华为交换机通过如下命令查看:
display transce inter g 1/0/23 version
华三交换机也可以通过以下命令查看光模块是否为真货,
[waiwang-center-h3c7510]dis transceiver manuinfo interface g0/0/30
GigabitEthernet0/0/30 transceiver manufacture information:
Manu. Serial Number : 210231a562x08b009229
Manufacturing Date : 2008-11-22
Vendor Name : H3C
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