Phil Hopkins, Principal Engineer at Rackspace. has an Electrical Engineering Degree from the University of South Florida and has been working on Linux systems for over 15 years. In the past he has taught Cisco Networking classes and worked as a Cisco Admin as well as designing VOIP systems using Asterisk. He is active teaching and writing about Openstack software defined networks (SDN). He has written and currently gives an advanced class teaching OpenStack Networking. Phil has spoken about Cloud Technologies at a number of events including The Red Hat Summit in 2011, OpenStack Summits in 2013 and 2014, and Linux Foundation CloudOpen 2014.