root@cumulus:mgmt: ~# ethtool -m swp7
        Identifier                                   : 0x11 (QSFP28)
        Extended identifier                          : 0xdc
        Extended identifier description              : 3.5W max. Power_consumption
        Extended identifier description              : CDR present in TX, CDR present in RX
        Extended identifier description              : High Power Class (> 3.5 W) not enabled
        Power set                                    : Off
        Power override                               : On
        Connector                                    : 0x0c  (MPO Parallel Optic)
        Transceiver codes                            : 0x80  0x00  0x00  0x00  0x00  0x00  0x00  0x00
        Transceiver type                             : 100G Ethernet :  100G Base-SR4 or 25GBase-SR
        Encoding                                     : 0x05(64B/66B)
        BR,  Nominal                                 : 25500Mbps
        Rate  identifier                             : 0x00
        Length  (SMF, km)                            : 0km
        Length  (OM3 50um)                           : 70m
        Length  (OM2 50um)                           : 0m
        Length  (OM1 62.5um)                         : 0m
        Length  (Copper or Active cable)             : 50m
        Transmitter technology                       : 0×00(850 nm VCSEL)
        Laser wavelength                             : 850.000nm
        Laser wavelength tolerance                   : 10.000nm
        Vendor name                                  : OEM
        Vendor OUI                                   : 00:02:c9
        Vendor PN                                    : QSFP28-100G-SR4
        Vendor rev                                   : 02
        Vendor SN                                    : M4123456
        Date code                                    : 240921
        Revision Compliance                          : Revision not specified
        Module temperature                           : 42.97 degrees C/109.35 degrees F
        Module voltage                               : 3.3076 V
        Alarm/warning flags implemented              : Yes
        Laser tx bias current  (Channel 1)           : 6.944 mA
        Laser tx bias current  (Channel 2)           : 7.038 mA
        Laser tx bias current  (Channel 3)           : 6.928 mA
        Laser tx bias current  (Channel 4)           : 6.992 mA
        Transmit avg optical power  (Channel 1)      : 1.2237 mW / 0.88 dBm
        Transmit avg optical power  (Channel 2)      : 1.2697 mW / 1.04 dBm
        Transmit avg optical power  (Channel 3)      : 1.2400 mW / 0.93 dBm
        Transmit avg optical power  (Channel 4)      : 1.1865 mW / 0.74 dBm
        Rcvr signal avg optical power  (Channel 1)   : 1.0410 mW / 0.17 dBm
        Rcvr signal avg optical power  (Channel 2)   : 1.0785 mW / 0.33 dBm
        Rcvr signal avg optical power  (Channel 3)   : 1.1560 mW / 0.63 dBm
        Rcvr signal avg optical power  (Channel 4)   : 1.0176 mW / 0.08 dBm
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