| Hi,
I try to configure a Xen server based on the latest Ubuntu server. The server will be connected to a network trunk using vlan's. I hoped this was relatively simple, however it is not. When installing ubuntu-22.04.1-live-server-amd64.iso, I did not manage to setup the network, so I did start digging into the problem. I did open lots of config files searching for the network configuration ........ a crime ..... and discovered that there are tons of (conflicting) tools and related ways to do that.
it has become rather stupid with network configuration. I don’t know what the point of it is, but at least I’ve found ways to use it well.
I don’t use all things you do, but generally, I’ve found the combination of „netplan“ using its /etc/netplan/blah.yaml files with the „systemd-networkd“ renderer to be reliable to a good level, including the important edge cases when something goes wrong.
The alternative you probably need to look into is to rely more on openvswitch for all the vlan related tasks.
what i’d recommend you to try: have one dedicated host mgmt interface (with a 01-mgmt-lan.yaml for example) and a second set of interfaces that will be driven by openvswitch (55-ovs-vmnet.yaml)
Greetings, Flo | 
