The Open Networking Foundation (ONF) is the public face of the Software Defined Networking movement, spelling out requirements and defining standards. The group's board includes Google, Facebook, Yahoo, Microsoft and Goldman Sachs on the data center side, and Verizon, Deutsche Telekom and NTT Communications on the service provider side. Additionally, there are close to 150 members, from global telcos to startups. To get a sense of where the movement stands, Network World Editor in Chief John Dix tracked down ONF Executive Director Dan Pitt, who spent 20 years developing network architecture, technology, standards, and products at IBM Networking Systems, Hewlett Packard and Bay Networks.