I have looked at all the solutions about how to stop/start/reload the network stack when using netplan configurations (without installing NetworkManager or nmcli) and none of them seem to give a complete option of how to restart the network stack.
I tried:
sudo systemctl stop networking; sudo systemctl start networking sudo systemctl restart networking
sudo systemctl restart sytemd-networking
sudo ifdown ; sudo ifup interface
and obviously
sudo netplan apply
I'm looking for a method that essentially will turn off all the networking and start everything from scratch - as if it were a reboot but without having to reboot. This is especially critical when VLANs are defined since none of the methods that I have tried know how to remove a VLAN definition even if it not longer appears in the /etc/netplan/*.yaml files.
Here is an example netplan file that I was using (this one doesn't include a VLAN though but happened with this file as well):
$ cat /etc/netplan/01-network-manager-all.yaml network: version: 2 renderer: networkd ethernets: enp226s0: dhcp4: no addresses: [192.168.10.32/24] gateway4: 192.168.10.254 nameservers: addresses: [192.168.1.11] search: [road2.local] enp225s0f0: dhcp4: no mtu: 9000 enp225s0f1: dhcp4: no mtu: 9000 bonds: bond0: dhcp4: no mtu: 9000 interfaces: - enp225s0f0 - enp225s0f1 parameters: mode: balance-rr mii-monitor-interval: 100 bridges: br0: dhcp4: no mtu: 9000 interfaces: - bond0 addresses: [192.168.1.10/24] gateway4: 192.168.1.254 routes: - to: 192.168.9.0/24 via: 192.168.1.254
