La commande ethtool permet d’afficher et de modifier certains paramètres de la carte réseau. Avant d’utiliser cette commande il est utile de lancer ifconfig pour connaitre les noms de vos interfaces réseau.
Fibre ou Ethernet
La différence entre un port réseau ethernet et fibre se fait au niveau de la ligne Supported ports
Fibre
Ici la ligne Supported ports renvoie [ FIBRE ]
# ethtool eno66 Settings for eno66: Supported ports: [ FIBRE ] Supported link modes: 10000baseT/Full Supported pause frame use: Symmetric Supports auto-negotiation: No Supported FEC modes: Not reported Advertised link modes: 10000baseT/Full Advertised pause frame use: Symmetric Advertised auto-negotiation: No Advertised FEC modes: Not reported Speed: 10000Mb/s Duplex: Full Port: Direct Attach Copper PHYAD: 0 Transceiver: internal Auto-negotiation: off Cannot get wake-on-lan settings: Operation not permitted Current message level: 0x00000007 (7) drv probe link Link detected: yes
Ethernet
Ici la ligne Supported ports renvoie [ TP ]
# ethtool eno42 Settings for eno42: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised pause frame use: Symmetric Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Speed: Unknown! Duplex: Unknown! (255) Port: Twisted Pair PHYAD: 4 Transceiver: internal Auto-negotiation: on MDI-X: Unknown Cannot get wake-on-lan settings: Operation not permitted Current message level: 0x000000ff (255) drv probe link timer ifdown ifup rx_err tx_err Link detected: no
Martin B.
Merci à Martin B.