NIC goes down and up every minute

[Lazarus]

When I run dmesg, the screen is filled with a network interface that goes down and up again every minute. I don't notice any problem, but it feels wrong. I've got Docker in an LXC, so perhaps that's related. But I don't really know how to find which VM or LXC that is the culprit of this. Is anyone else seeing similar behavior?

[Mon Sep 19 15:15:38 2022] eth0: renamed from veth0c0d458
[Mon Sep 19 15:15:38 2022] IPv6: ADDRCONF(NETDEV_CHANGE): veth92497cd: link becomes ready
[Mon Sep 19 15:15:38 2022] br-2ae906509ea3: port 14(veth92497cd) entered blocking state
[Mon Sep 19 15:15:38 2022] br-2ae906509ea3: port 14(veth92497cd) entered forwarding state
[Mon Sep 19 15:15:38 2022] br-2ae906509ea3: port 14(veth92497cd) entered disabled state
[Mon Sep 19 15:15:38 2022] veth0c0d458: renamed from eth0
[Mon Sep 19 15:15:38 2022] br-2ae906509ea3: port 14(veth92497cd) entered disabled state
[Mon Sep 19 15:15:38 2022] device veth92497cd left promiscuous mode
[Mon Sep 19 15:15:38 2022] br-2ae906509ea3: port 14(veth92497cd) entered disabled state

 

[Moayad]

Hello,

What is the network configuration look like, does the Node have a weird network config or standard network configuration?


Have you checked the `systemctl status networking.service ` output to see if there is any hint?