# ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 10Mb/s
Duplex: Full
Port: MII
PHYAD: 4
Transceiver: internal
Auto-negotiation: on
Current message level: 0x00000000 (0)
Link detected: yes
问题是 TP 是什么意思?我发现 MII 表示媒体独立接口。另外,我想知道为什么我不能更改端口的值:
# ethtool -s eth0 port tp
Cannot set new settings: Invalid argument
not setting port
答案1
意思是双绞线。电缆和端口以绞合方法命名,该方法利用金属的化学/机械特性来减少多条电缆之间的串扰和干扰。