showidprominterfaceG2/0/1\\后面的G2/0/1是具体端口
你先使用showipinterfacebrief确认你所在的光模块在哪个板卡端口，然后使用上面的指令去查看具体端口信息。
这是我查看自己路由器光模块的信息：
ZHbdh-R7609-HX-2#shidprominterfaceGigabitEthernet8/4
TransceiverSerialEEPROMContents:
Commonblock:
Identifier:Transceiver
Connector:SCconnector[0x01]
Transceiver
Speed:[0x00]
Media:[0x00]
Technology:[0x00]
LinkLength:[0x02]
GECompCodes:[0x00]
SONETCompCodes:[0x00]
Encoding:8B10B[0x01]
BR,Nominal:12x100MHz[0x0C]
Length(9u):>25.4km[0xFF]
Length(50u):0x10m[0x00]
Length(62.5u):0x10m[0x00]
Length(Copper):0m[0x00]
VendorName:CISCO-FINISAR
VendorOUI:0x00x900x65
VendorPN:FTR-1519-CSC
Vendorrev:1A
CC_BASE:0x80
ExtendedIDFields
Options:LossofSignalimplementedTX_FAULTsignalimplementedTX_DISABLEisimplementedanddisablestheserialoutput
BR,max:Unspecified
BR,min:Unspecified
VendorSN:FNS0834G1ZV
Datecode:040820
CC_EXT:0x6
VendorSpecificIDFields:
0x00:000002309299B1F26CDE6F0958F1A904
0x10:F0EF84000000000000000000E59DFB29
