[root@centos7 ~]# nmcli con add type vlan ifname enp3s0.100 dev enp3s0 id 100
Connection 'vlan-enp3s0.100' (2c0faef4-95ec-4a1b-87fa-c3c70446cf53) successfully added.
[root@centos7 network-scripts]# nmcli c add type bridge ifname brenp3s0-100
Connection 'bridge-brenp3s0-100' (7e46c607-832e-4bdf-82d4-c08b32364ffe) successfully added.