David Prall is a Solutions Engineer in the US Federal Defense Operation. Has been with Cisco for over 24 years. Has previously held Solutions Architect, Communications Architect, Consulting Systems Engineer and Systems Engineer positions within both World Wide Enterprise Networking Sales and the US Federal Area supporting civilian agencies. His primary focus is Complex Routing and Switching designs, to include design, deployment, and troubleshooting of large networks using IOS, IOS-XE, and IOS-XR. Currently focused on Cisco's Software Defined Wide Area Networking (SD-WAN). Areas of focus include IPv6, Multicast, MPLS, Fast Convergence, and Quality of Service. David is triple CCIE 6508 in Routing and Switching, Service Provider, and Security. He holds a Bachelor of Science in Computer Science from George Washington University.