幫助我理解 ethtool 輸出

幫助我理解 ethtool 輸出

我們有兩台連接到第三方平台的伺服器。一台伺服器經常出現通訊問題,而另一台則沒有。

我使用“route”命令驗證了兩台伺服器都使用“eth0”

當我在沒有連接問題的伺服器上執行“ethtool eth0”時,我得到以下資訊:

   Settings for eth0:
        Supported ports: [ Backplane ]
        Supported link modes:   100000baseKR4/Full
                                100000baseSR4/Full
                                100000baseCR4/Full
                                100000baseLR4_ER4/Full
        Supported pause frame use: Symmetric
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  100000baseKR4/Full
                                100000baseSR4/Full
                                100000baseCR4/Full
                                100000baseLR4_ER4/Full
        Advertised pause frame use: No
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Speed: 100000Mb/s
        Duplex: Full
        Auto-negotiation: on
        Port: Direct Attach Copper
        PHYAD: 0
        Transceiver: internal
        Current message level: 0x000000f7 (247)
                               drv probe link ifdown ifup rx_err tx_err
        Link detected: yes

當我檢查存在 BAD 連接問題的伺服器時,我發現有很多不同之處:

Settings for eth0:
        Supported ports: [  ]
        Supported link modes:   Not reported
        Supported pause frame use: Symmetric
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  Not reported
        Advertised pause frame use: No
        Advertised auto-negotiation: No
        Advertised FEC modes: Not reported
        Speed: 50000Mb/s
        Duplex: Unknown! (255)
        Auto-negotiation: off
        Port: None
        PHYAD: 0
        Transceiver: internal
        Current message level: 0x000000f7 (247)
                               drv probe link ifdown ifup rx_err tx_err
        Link detected: yes

這些伺服器都是託管在 Azure 上的 Ubuntu 22.04 伺服器

這個配置從哪裡來?我怎麼能改變一個像另一個一樣?

答案1

嘗試跑步

ip -s link show eth0

lsmod這可能是由於缺少一些驅動程序,因此請嘗試比較兩台伺服器上的輸出。

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