To enable the experimental SDN integration, you need to install the
libpve-network-perl
and ifupdown2
package on every node:
apt update apt install libpve-network-perl ifupdown2
After that you need to add the following line:
source /etc/network/interfaces.d/*
at the end of the /etc/network/interfaces
configuration file, so that the SDN
config gets included and activated.