[Linux] ethernet在1G Lan無法正常運作的解法

遇到kernel硬體對giga lan 支援有問題…XD

可以使用ethtool降速解決

root@arm:~# apt-get install ethtool
....

root@arm:~# ethtool -s eth0 speed 10 duplex full
root@arm:~# [  640.693560] PHY: 0:00 - Link is Down
[  642.693546] PHY: 0:00 - Link is Up - 10/Full

root@arm:~# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_req=1 ttl=47 time=20.0 ms
64 bytes from 8.8.8.8: icmp_req=2 ttl=47 time=19.4 ms