Ken Gray is currently a Senior Director, Architecture, Cisco Systems. Previously he was a Director at Juniper Networks responsible for technical strategy and innovation for Juniper Network's Platform Systems Division, with a particular focus on core routing and the evolving area of Software Defined (Driven) Networks. From 1995-2011 Ken worked at Cisco Systems from 1995-2011 Ken worked at Cisco in a variety of roles, ultimately as a Principal Engineer working on the development and deployment of high-end routing platforms and operating systems. From 1984 to 1995, Ken was a network geek responsible for designing large public and private networks at a company that ultimately became Verizon. Ken is the co-author of SDN: Software Defined Networks (O’Reilly 2013)