Ethernet3/1
    transceiver is not present
Ethernet3/2
    transceiver is present
    type is 1000base-SX
    name is CISCO-FINISAR   
    part number is FTRJ8519P1BNL-C4
    revision is A   
    serial number is FNS1009J3MT     
    nominal bitrate is 2100 MBit/sec
    cisco id is 3
    cisco extended id number is 4
Ethernet3/3
    transceiver is present
    type is 1000base-SX
    name is CISCO           
    part number is SFBR-5716PZ     
    revision is 001 
    serial number is AGJ1945R416     
    nominal bitrate is 1300 MBit/sec
    cisco id is 3
    cisco extended id number is 4
    cisco part number is 10-2626-01
    cisco product id is GLC-SX-MMD          
    cisco vendor id is V01 
Ethernet3/4
    transceiver is present
    type is 1000base-SX
    name is CISCO           
    part number is SFBR-5716PZ     
    revision is 001 
    serial number is AGJ1945R41D     
    nominal bitrate is 1300 MBit/sec
    cisco id is 3
    cisco extended id number is 4
    cisco part number is 10-2626-01
    cisco product id is GLC-SX-MMD          
    cisco vendor id is V01