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Ping 时间从 0.9 毫秒跃升至 11 至 28 毫秒之间

tag-icon • tag-icon networking performance ping
Ping 时间从 0.9 毫秒跃升至 11 至 28 毫秒之间

我有一台服务器，其中有 5 台其他设备，全部插入一台交换机。我可以 ping 所有设备，ping 时间很短（0.6 毫秒到 0.9 毫秒之间）。但是，突然间，其中一台设备的 ping 时间显著增加（20 毫秒到 80 毫秒之间）。当 ping 速率下降时，我们还会看到设备出现与连接不良一致的异常行为（这是一台专业相机）。

从交换机上拔下设备再重新插入，ping 时间会缩短回“正常”的 0.9ms。一段时间后，ping 时间又会恢复正常。

我们无法识别与 ping 时间增加同时发生的任何外部事件。所有电缆均为 cat6 结构。

它“闻起来”像某种电气干扰，但奇怪的是，它工作了一段时间，然后就变坏了，但当电缆断开并重新连接时就会恢复正常。

欢迎提出任何想法。谢谢！

（这是我在这里的第一个问题，因此对于问题中的任何新手我提前致歉）

以下是 arping 输出的示例：

    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.952ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.951ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.955ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.941ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.952ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.952ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.951ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.951ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.941ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.984ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.950ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.952ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.952ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.951ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.952ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.942ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.953ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.953ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.942ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.946ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.927ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.942ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  0.957ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  11.573ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  35.059ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  21.710ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  21.187ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  19.604ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  17.873ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  36.197ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  29.025ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  28.685ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  24.288ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  28.241ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  21.027ms
    Unicast reply from 192.168.1.85 [00:40:7F:40:22:50]  21.241ms

答案1

感谢您的建议和意见。

看起来是网络布线问题。虽然电缆质量很好，但布线时却与其他一些带有严重干扰的电缆相邻。重新布线后问题就解决了。

再次感谢您的帮助和关注。

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