Comment 25 for bug 1671951

This was done inside a VM.
This was all done in a single /etc/systemd/network/10-netplan-ens3.network file. Note that [Link] is a valid section in a .network file. Note that i took netplan generated .network file as a base, and then modified it with above shown options. Disabled netplan. Rebooted.

I'm not quite sure how you can reproduce this inside a lxd container, since it's not using a physical link, but a .netdev devices. I expect that specifying similar things in .network should work, but it might not. That is because a veth pair is precreated outside of the container, and one may need to adjust the host-side of the veth pair which is a priviledged operation.

Note that e.g. one can set MTU on virtual devices created using .netdev units.