DHCP fails when deploying Overcloud

Issue

After completing node discovery and attempting to deploy the Overcloud DHCP fails on the node. I can see in the log on the undercloud that the DHCPDISCOVER packet is being received and then a DHCPOFFER is sending an IP address to the MAC but the packet never reaches the node that is requesting it. I know DHCP is working on the network because the node discover process works as expected. I think it has something to do with the Open Virtual Switch that is created to handle the deployment process.