===== Virt Manager VLAN =====
==== Install open vswitch ====
Install and create bridge:
<code>
sudo apt-get install openvswitch-switch
sudo ovs-vsctl add-br virbr2
sudo ovs-vsctl add-port virbr2 enp0s31f6
</code>

==== Create libvirt network with vlan ====
Create a file test.xml:
<code>
<network connections='2'>
  <name>vlan42</name>
  <uuid>04a64a40-f1b8-48f6-a396-7a4e83f25826</uuid>
  <forward mode='bridge'/>
  <bridge name='virbr2'/>
  <virtualport type='openvswitch'/>
  <portgroup name='vlan-all' default='yes'>
    <vlan trunk='yes'>
      <tag id='42'/>
      <tag id='802'/>
      <tag id='803'/>
      <tag id='804'/>
      <tag id='805'/>
    </vlan>
  </portgroup>
</network>
</code>

Import and create file:
<code>
sudo virsh net-create test.xml
sudo virsh net-start vlan42
sudo virsh net-autostart vlan42
</code>

==== On virtual machine ====
<code>
sudo nmcli con add type vlan ifname VLAN42 dev enp7s0 id 42
sudo nmcli con mod vlan-VLAN42 connection.autoconnect yes
sudo nmcli con mod vlan-VLAN42 ipv4.method manual ipv4.addresses 192.168.100.2/24
</code>

==== References ====
  * https://www.netflask.net/transparent-vlan-tagging-libvirt-ovs/
  * http://docs.openvswitch.org/en/latest/intro/install/debian/