About the Authors

Allan Leinwand is the Chief Technology Officer and Vice President of Engineering at Telegis Networks, Inc. Previously, as Chief Technology Officer and Vice President of Engineering for 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 the global network design of customer networks. Allan received his BS in Computer Science at the University of Colorado at Boulder in 1988, and has been working in internetworking technology and solutions for large corporations since that time. He teaches graduate computer networking courses for the University of California, Berkeley; has published many papers on network management and network design; and is the co- author of the Addison-Wesley text Network Management: A Practical Perspective , Second Edition.

Bruce Pinsky , CCIE #1045, is the Vice President of Product Engineering and Network Infrastructure at Telegis Networks, Inc. Previously, as Chief Information Officer, Vice President of Solutions Engineering, and Chief Network Strategist of Digital Island, Inc., he was responsible for the direction and deployment of corporate technology infrastructure and advanced technology research. Before Digital Island, Bruce was a Senior Internetwork Support Technologist at Cisco Systems, Inc., and was responsible for the escalation of complex customer technical issues. He received his BS in Computer Science at California State University, Hayward, in 1988, and he has been working in internetworking technology and systems integration for large corporations and consulting firms before and since that time. One of the original Cisco Certified Internetwork Engineers, Bruce has expertise in such topics as network troubleshooting and protocol analysis, network design and configuration, and workstation and server-based operating systems. He routinely teaches courses on network configuration, design, and troubleshooting, and is co- inventor of patented routing technology.