Issue related to networking in new release

[Mohamed Elhossiny]

The newly released Proxmox version 8.3.0 appears to have an issue related to networking. Specifically, a network service restart using the systemctl restart networking command is performed on any node. The service command disrupts all virtual machine network interfaces (NICs), resulting in network connectivity loss for the affected virtual machines. It is recommended to avoid restarting the network service on nodes running Proxmox 8.3.0 until a fix or update is released.

 

[ce3rd]

hi, if you make changes to the network configuration manually, fe editing /etc/network/interfaces file -> then use "ifreload -a" ->
https://pve.proxmox.com/pve-docs/pve-admin-guide.html#sysadmin_network_configuration

 

[fabian]

restarting networking.service always had that effect, which is why you are not supposed to do that

 

[Mohamed Elhossiny]

This issue didn't exist in the previous releases, In the previous release I reconfigured the whole network settings, especially in file interfaces for all nodes in the cluster without any interruption or effects in any VM connectivity, I see this issue exists in the new release 8.3.0

 

[fabian]

that's incorrect. network hot reloading uses a different mechanism, not restarting the networking service, for exactly that reason.

 

[omgs]

I have to say that with VE 8 and ifupdown2, I've been able to play with several bridges and vnets from the gui and everything worked without any problem. I encourage the poster to try this way.