dmesg這是主機上的輸出，由於某種原因，在虛擬機器運行一段時間後，它們的網路開始每隔 15 秒中斷一次。
主機正在運行最新版本的 Fedora 伺服器，我有 1 個運行 Debian 的虛擬機器和 1 個運行 Fedora 伺服器。兩人都經歷過被淘汰。
[121918.311653] r8169 0000:05:00.0 enp5s0: link down
[121918.311695] workingbridge0: port 4(enp5s0) entered disabled state
[121920.679189] r8169 0000:05:00.0 enp5s0: link up
[121920.679206] workingbridge0: port 4(enp5s0) entered blocking state
[121920.679210] workingbridge0: port 4(enp5s0) entered listening state
[121927.860286] r8169 0000:05:00.0 enp5s0: link down
[121927.860321] workingbridge0: port 4(enp5s0) entered disabled state
[121930.705401] r8169 0000:05:00.0 enp5s0: link up
[121930.705419] workingbridge0: port 4(enp5s0) entered blocking state
[121930.705424] workingbridge0: port 4(enp5s0) entered listening state
[121945.905176] workingbridge0: port 4(enp5s0) entered learning state
[121955.704447] r8169 0000:05:00.0 enp5s0: link down
[121955.704489] workingbridge0: port 4(enp5s0) entered disabled state
[121958.555435] r8169 0000:05:00.0 enp5s0: link up
[121958.555451] workingbridge0: port 4(enp5s0) entered blocking state
[121958.555454] workingbridge0: port 4(enp5s0) entered listening state
[121974.062092] workingbridge0: port 4(enp5s0) entered learning state
[121989.420397] workingbridge0: port 4(enp5s0) entered forwarding state
[121989.420405] workingbridge0: topology change detected, propagating
答案1
最有可能的是電纜損壞。尋找是否有狗咀嚼它，或是否有其他物理損傷。
也有可能是網路卡壞了，或是另一端的交換器連接埠壞了。
您應該關閉硬件，直到隔離出有缺陷的部分。