[root@rac2 ~]# ethtool enp3s0f1
Settings for enp3s0f1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Speed: 1000Mb/s------->>>务必是1000Mb/s
Duplex: Full------->>>务必是FULL,若是半双工,意味着任一时刻,该网卡要么只能收,要么只能发.
Port: Twisted Pair------->>>双绞线,若是万兆,此处会显示FIBRE
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: off (auto)
Supports Wake-on: d
Wake-on: d
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes------->>>务必是yes
[root@rac2 ~]#
