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Linux 中的互联网连接速度很慢

tag-icon • tag-icon linux networking linux-networking connection slow-connection
Linux 中的互联网连接速度很慢

我的新网络连接有问题。这是一个对称的 500Mbs 连接，但我的 Linux 计算机只能获得 50M。在 Windows 中，我与其他计算机的上传和下载速度均为 500Mb。我知道问题出在我的 Linux 以太网连接上，因为我的以太网卡速度为 100Mb。我不知道为什么。

这是以太网卡值（它支持 1Gb）

    Supported ports: [ TP MII ]
    Supported link modes:   10baseT/Half 10baseT/Full 
                            100baseT/Half 100baseT/Full 
                            1000baseT/Full 
    Supported pause frame use: Symmetric Receive-only
    Supports auto-negotiation: Yes
    Supported FEC modes: Not reported
    Advertised link modes:  10baseT/Half 10baseT/Full 
                            100baseT/Half 100baseT/Full 
                            1000baseT/Full 
    Advertised pause frame use: Symmetric Receive-only
    Advertised auto-negotiation: No
    Advertised FEC modes: Not reported
    Speed: 100Mb/s
    Duplex: Half
    Port: MII
    PHYAD: 0
    Transceiver: internal
    Auto-negotiation: off
    Supports Wake-on: pumbg
    Wake-on: d
    Current message level: 0x00000033 (51)
                           drv probe ifdown ifup
    Link detected: yes

我尝试使用 ethtool，但当我尝试使用以下方法更改为 1000Mb/s 时

$ sudo ethtool -s enp3s0 speed 1000 duplex full

Settings for enp3s0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Supported pause frame use: Symmetric Receive-only
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  1000baseT/Full 
        Advertised pause frame use: Symmetric Receive-only
        Advertised auto-negotiation: No
        Advertised FEC modes: Not reported
        Speed: 1000Mb/s
        Duplex: Full
        Port: MII
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: off
        Supports Wake-on: pumbg
        Wake-on: d
        Current message level: 0x00000033 (51)
                               drv probe ifdown ifup
        Link detected: no

但我没有链接

如果我尝试提高 enp3s0，1000Mb 的速度就会消失，然后我又会得到 100M

$ sudo ifup enp3s0 

$ 
Settings for enp3s0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full 
                                100baseT/Half 100baseT/Full 
                                1000baseT/Full 
        Supported pause frame use: Symmetric Receive-only
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  1000baseT/Full 
        Advertised pause frame use: Symmetric Receive-only
        Advertised auto-negotiation: No
        Advertised FEC modes: Not reported
        Speed: 100Mb/s
        Duplex: Half
        Port: MII
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: off
        Supports Wake-on: pumbg
        Wake-on: d
        Current message level: 0x00000033 (51)
                               drv probe ifdown ifup
        Link detected: yes
enp3s0: 100 Mbit, half duplex, link ok
$

我不知道还能尝试什么。

谢谢

答案1

解决

$ sudo ethtool -s enp3s0 autoneg on

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