Khaled Abuelenain, CCIE No. 27401 (R&S, SP), is currently the Consulting Director at Acuative, a Cisco Managed Services Master Partner. Khaled has spent the past 18 years designing, implementing, operating, and automating networks and clouds. He specializes in service provider technologies, SD-WAN, data center technologies, programmability, automation, and cloud architectures. Khaled is especially interested in Linux and OpenStack. Khaled is a contributing author of the best-selling Cisco Press book Routing TCP/IP, Volume II, 2nd edition, by Jeff Doyle. He also blogs frequently on network programmability and automation on blogs.cisco.com. Khaled is also a member of the DevNet500 group, being one of the first 500 individuals in the world to become DevNet certified. Khaled lives in Riyadh, Saudi Arabia, and when not working or writing, he likes to run marathons and skydive. He can be reached at kabuelenain@gmail.com, on Twitter at @kabuelenain or on LinkedIn at linkedin.com/in/kabuelenain. Jeff Doyle, CCIE No. 1919, is a Member of Technical Staff at Apstra. Specializing in IP routing protocols, complex BGP policy, SDN/NFV, data center fabrics, IBN, EVPN, MPLS, and IPv6, Jeff has designed or assisted in the design of large-scale IP and IPv6 service provider networks in 26 countries over 6 continents. Jeff is the author of CCIE Professional Development: Routing TCP/IP, Volumes I and II and OSPF and IS-IS: Choosing an IGP for Large-Scale Networks; a co-author of Software-Defined Networking: Anatomy of OpenFlow; and an editor and contributing author of Juniper Networks Routers: The Complete Reference. Jeff is currently writing CCIE Professional Development: Switching TCP/IP. He also writes for Forbes and blogs for both Network World and Network Computing. Jeff is one of the founders of the Rocky Mountain IPv6 Task Force, is an IPv6 Forum Fellow, and serves on the executive board of the Colorado chapter of the Internet Society (ISOC). Anton Karneliuk, CCIE No. 49412 (R&S, SP), is a Network Engineer and Manager at THG Hosting, responsible for the development, operation, and automation of networks in numerous data centers across the globe and the international backbone. Prior to joining THG, Anton was a team lead in Vodafone Group Network Engineering and Delivery, focusing on introduction of SDN and NFV projects in Germany. Anton has 15 years of extensive experience in design, rollout, operation, and optimization of large-scale service providers and converged netwo