Impact Of Running Multiple eUPFs In The Same WorkerNode Using Host Device Plugin

[infinitydon]

Hi,

I will like to know if running multiple eUPFs (e.g. 2) using host-device plugin i.e. each eUPF will consume a full network interface that is injected by multus, the reason I am asking is that any time I am running it this way, the UE connectivity becomes problematic but if I run only eUPF at a time this does not occur, it took some time before noticing this and some times the only way to get the whole setup running even when I revert back to a single eUPF instance is by restarting the whole VM.

This occurs with both generic and native mode for virtio_net NICs.

Using the default k8s interfaces like Calico alone or macvlan works, so I am curious why this only occurs when 2 eUPFs are using host-device plugin (different interfaces) at the same time.

Thanks