查詢linux網卡速率指令

# dmesg |grep eth0
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
divert: allocating divert_blk for eth0
e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
eth0: no IPv6 routers present

# mii-tool -v eth0
eth0: negotiated 100baseTx-FD, link ok


# 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
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: umbg
Wake-on: g
Current message level: 0x00000007 (7)
Link detected: yes
來源:
http://linuxhelp.blogspot.com/2005/10/find-speed-of-your-ethernet-card-in.html