Hi guys, we have an interesting issue with kolla-ansible and neutron. We are trying to create multiple flat networks that map to different VLAN-s. E.g. like linuxbridge where you have nic -> bond -> vlan -> bridge e.g vlanbridge. I have created bonds for kolla-ansible to create the bridges on with netplan. 

```
    vlans:
        bond1.100:
            id: 100
            link: bond1
        bond1.101:
            id: 101
            link: bond1
```

When I list the `brctl show` there are no bridges actually present. Though `ip a` lists these bridges. 

```

55: br-ex100: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 02:03:7d:61:82:40 brd ff:ff:ff:ff:ff:ff
56: br-ex101: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether da:eb:73:7d:3f:4b brd ff:ff:ff:ff:ff:ff
57: br-ex102: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 1e:09:16:84:a4:49 brd ff:ff:ff:ff:ff:ff
```