Review test setup to verify if the setup works as expected

Topics:

• is the topology right - 3 ODL nodes, with HAProxy on the northbound for neutron?
• should HAProxy be used on the southbound?
• does a setup with ha on the openstack nodes help, e.g. 3 openstack control nodes?
• would auto-tz work better than dynamic tunnels?
• does bfd cause problems, specifically when used with dynamic tunnels