Allan Leinwand is Chief Technology Officer and Vice President of Engineering at Telegis Networks, Inc. Previously, as Chief Technology Officer and Vice President of Engineering at Digital Island, Inc., he was responsible for the technical direction of the company's global network and content distribution strategy. Before Digital Island, he was a Consulting Engineering Manager at Cisco Systems, Inc., responsible for global network design of customer networks. He teaches graduate computer networking courses for the University of California, Berkeley, and has published many papers on network management and network design.