[root@localhost ~]# ethtool -m p5p2 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 Connector : 0x07 (LC) Transceiver codes : 0x80 0x00 0x00 0x00 0x00 0x00 0x00 0x00 Transceiver type : 100G Ethernet: 100G CWDM4 MSA with FEC Encoding : 0x05 (64B/66B) BR, Nominal : 25500Mbps Rate identifier : 0x00 Length (SMF,km) : 2km Length (OM3 50um) : 0m Length (OM2 50um) : 0m Length (OM1 62.5um) : 0m Length (Copper or Active cable) : 0m Transmitter technology : 0x40 (1310 nm DFB) Laser wavelength : 1310.000nm Laser wavelength tolerance : 30.000nm Vendor name : Intel Corp Vendor OUI : 00:1b:21 Vendor PN : QSFP-100G-CWDM4 Vendor rev : 02 Vendor SN : APF164930198KV Revision Compliance : SFF-8636 Rev 2.5/2.6/2.7 Module temperature : 40.65 degrees C / 105.17 degrees F Module voltage : 3.2666 V Alarm/warning flags implemented : Yes Laser tx bias current (Channel 1) : 37.484 mA Laser tx bias current (Channel 2) : 37.484 mA Laser tx bias current (Channel 3) : 37.484 mA Laser tx bias current (Channel 4) : 37.484 mA Transmit avg optical power (Channel 1) : 1.0279 mW / 0.12 dBm Transmit avg optical power (Channel 2) : 1.0253 mW / 0.11 dBm Transmit avg optical power (Channel 3) : 1.1463 mW / 0.59 dBm Transmit avg optical power (Channel 4) : 1.0327 mW / 0.14 dBm Rcvr signal avg optical power(Channel 1) : 0.6562 mW / -1.83 dBm Rcvr signal avg optical power(Channel 2) : 0.6344 mW / -1.98 dBm Rcvr signal avg optical power(Channel 3) : 0.7975 mW / -0.98 dBm Rcvr signal avg optical power(Channel 4) : 0.3508 mW / -4.55 dBm ---more---