From a comfortable cruising altitude of 38,000 feet, one can really reflect on the overarching themes of Interop 2013 in Las Vegas. Software-defined networking (SDN) was certainly the buzzword that networking vendors and attendees alike were throwing around on the expo floor, in session rooms and at cocktail hours, but another topic kept coming up in conversation: With such drastic changes happening to enterprise networking environments with the advent of cloud, virtualization and