Comment 7 for bug 1888726

I am able to reproduce the problem on Groovy (netplan.io 0.100-0ubuntu5).

Using the "Type=!vlan" filter, which netplan already applies for some bridge/bond scenarios, I was able to get the vlan20 interface from 'degraded / pending' into 'degraded / configured', state and systemd-networkd-wait-online.service not timing out, but succeeding.

I'm working on an upstream solution here:
https://github.com/CanonicalLtd/netplan/pull/166

@Foster: would you be able to test if netplan.io from this PPA fixes the problem for you, too?
https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/4315