Lukas Krattiger, CCIE No. 21921 (Routing/Switching and Data Center), is principal engineer, Technical Marketing, with more than 15 years of experience in data center, Internet, and application networks. Within Cisco, he specializes in data center switching, overlay architectures, and solutions across platforms. Lukas is a double-CCIE (R&S and Data Center) with several other industry certifications and has participated in various technology leadership and advisory groups. Prior to joining Cisco, Lukas was a senior network engineer with System Integrators and Service Providers, where he was responsible for data center and Internet networks. Since joining Cisco, he has covered various technologies within the data center as well as enterprise networks portfolio, and he has built foundational solutions for customers and partners. He is from Switzerland and currently lives in California with his wife and one wonderful daughter. He can be found on Twitter at @ccie21921.