我的 Centos6 服务器遇到了一个奇怪的问题，目前我已经在 64 位支持 CPU 上安装了 Centos6.4，配有 8GB RAM 和 500GB HDD。今天早上刚上网检查，发现网速明显下降，当我仔细检查速度测试时，我的速度几乎不能达到 3MB/s，而其他本地机器的速度有 10MB/s……昨天它工作正常……我重启了几次互联网，但没有解决问题……任何帮助都将不胜感激……
输出ethtool eth0
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Link partner advertised pause frame use: Symmetric Receive-only
Link partner advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000033 (51)
drv probe ifdown ifup
Link detected: yes