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如何在 Centos 中让以太网卡速度达到 1000Mb/s

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如何在 Centos 中让以太网卡速度达到 1000Mb/s

我设置了一个完全支持 1000Mb/s 速度的网络。同样的网络在 Windows 系统中显示 1000Mb/s 速度，但在 Centos 中显示 100Mb/s 速度。为什么？

我的 ethtool 输出如下

 [root@localhost ~]# ethtool eth0
Settings for eth0:
        Supported ports: [ TP ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Supported pause frame use: No
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
                                1000baseT/Full
        Advertised pause frame use: No
        Advertised auto-negotiation: Yes
        Speed: 100Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 2
        Transceiver: internal
        Auto-negotiation: on
        MDI-X: on
        Supports Wake-on: pumbg
        Wake-on: g
        Current message level: 0x00000007 (7)
                               drv probe link
        Link detected: yes

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