我們正常查看思科交換機或路由器接口的光功率一般都是這樣看的

SZ-IDC-SD-SW-9504-01# sh int ethernet 1/46 transceiver details Ethernet1/46transceiver is presenttype is 10Gbase-SR-Sname is CISCO-AVAGO part number is SFBR-709SMZ-CS2 revision is G4.1serial number is AVD2101D7RK nominal bitrate is 10300 MBit/secLink length supported for 50/125um OM2 fiber is 82 mLink length supported for 62.5/125um fiber is 26 mLink length supported for copper is 40 mLink length supported for 50/125um OM3 fiber is 300 mcisco id is 3cisco extended id number is 4cisco part number is 10-3105-01cisco product id is SFP-10G-SR-S cisco vendor id is V01 SFP Detail Diagnostics Information (internal calibration)----------------------------------------------------------------------------Current Alarms WarningsMeasurement High Low High Low----------------------------------------------------------------------------Temperature 25.33 C 75.00 C -5.00 C 70.00 C 0.00 CVoltage 3.31 V 3.63 V 2.97 V 3.46 V 3.13 VCurrent 5.96 mA 10.50 mA 2.50 mA 10.50 mA 2.50 mATx Power -2.11 dBm 1.69 dBm -11.30 dBm -1.30 dBm -7.30 dBmRx Power -2.53 dBm 1.99 dBm -13.97 dBm -1.00 dBm -9.91 dBmTransmit Fault Count = 0----------------------------------------------------------------------------Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning

但是在思科的ISR4400路由器上比較特殊，上面的命令不可用。

需要使用下面的命令：

以思科ISR4431為例，查看G0/0/1接口的光功率

DG-IDC-KR-RT-4431-3#show hw-module subslot 0/0 transceiver 1 status The Transceiver in slot 0 subslot 0 port 1 is enabled.Module temperature = +25.144 CTransceiver Tx supply voltage = 3312.0 mVoltsTransceiver Tx bias current = 3148 uAmpsTransceiver Tx power = -6.3 dBmTransceiver Rx optical power = -4.9 dBm

總結

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