28.1 Identifying the Network Management System
The steps to create a network bridge will differ depending on whether the host system is using Network Manager or Netplan for network management. If you installed Ubuntu using the desktop installation media then you most likely have a system running Network Manager. If, on the other hand, you installed from the server or Network installer image, then your system is most likely using Netplan.
To identify which networking system is being used, open a Terminal window and run the following command:
# networkctl status
If the above command generates output similar to the following then the system is using Netplan:
# networkctl status
● State: routable
Address: 192.168.86.242 on enp0s3
fe80::a00:27ff:fe52...