When using a physical host interface for external network with Director, if the interface is not attached to an OVS bridge, the interface will not pass traffic in an OpenDaylight setup. Traffic will not pass and you should avoid this type of configuration. Always use an OVS bridge in the NIC templates for an overcloud external network. This bridge is named "br-ex" by default in Director (although you may use any name). You should attach the physical host interface used for the external network to this OVS bridge. When you use an interface attached to an OVS bridge, the deployment will function correctly and the external network traffic to tenants will work correctly.