[root@localhost ~]# ethtool p5p2 Settings for p5p2: Supported ports: [ FIBRE ] Supported link modes: 10000baseT/Full 40000baseCR4/Full 25000baseCR/Full 50000baseCR2/Full 100000baseCR4/Full Supported pause frame use: Symmetric Receive-only Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 10000baseT/Full 40000baseCR4/Full 25000baseCR/Full 50000baseCR2/Full 100000baseCR4/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Speed: 100000Mb/s Duplex: Full Port: FIBRE PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: d Wake-on: d Current message level: 0x00002001 (8193) drv hw Link detected: yes