From Fedora Project Wiki
Using iproute2 (runtime)
Example configuration:
parent=eth0 vlan=vlan40 vlanid=40
Create a VLAN:
ip link add link $parent $vlan type vlan id $vlanid
Destroy a VLAN:
ip link delete $vlan
Using NetworkManager (permanent)
From: https://mail.gnome.org/archives/networkmanager-list/2012-July/msg00141.html
keyfile
[connection] id=VLAN1 uuid=ed3b2385-9016-45c6-a277-fa7e5be8fe9d type=vlan [vlan] parent=eth0 id=1 [ipv6] method=auto [ipv4] method=auto
ifcfg-rh
VLAN=yes TYPE=Vlan DEVICE=eth9.43 PHYSDEV=eth9 ONBOOT=yes BOOTPROTO=none IPADDR=192.168.43.149 NETMASK=255.255.255.0