Soni Jiandani is one of Cisco's serial entrepreneurs, having been a key member of the teams that developed everything from the Nexus 5000 to Cisco's Unified Computing System (which in five years has leapt to the top of the x86 blade server market in North America, according to IDC). Today Jiandani is Senior Vice President of Cisco's Insieme business unit, the group pushing the company's Software Defined Networking vision. Network World Editor in Chief John Dix caught with Jiandani to get her take on how SDN plays out.