# ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full // 目前最高速度可到 1000Mb/s
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
MDI-X: Unknown
Supports Wake-on: d
Wake-on: d
Current message level: 0x00000007 (7)
Link detected: yes // 接線正常
檢測網卡狀態ethtool
檢測網卡狀態除了目視硬網卡的燈號是否閃爍以外,還可以用指令看到目前網卡速度是 100M 還是 10M,因為即使網卡支援 1000M,也會因為網路環境,而降速至 10M。
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