VMs networking stopped after ` systemctl restart networking` on node?

[Tony]

I did a systemctl restart networking on a node and after that networking stopped for all VMs. No real change in /etc/network/interfaces, just some cosmetic change to make it more readable and some comments.

The workaround was to restart all VMs. However I'd like to know this is the expected behavior, i.e restart networking on node will disturb VM networking.

 

[Neobin]

However I'd like to know this is the expected behavior, i.e restart networking on node will disturb VM networking.

Yes: https://forum.proxmox.com/threads/all-lxcs-and-vms-lost-networking.105583/#post-454576