Barry Raveendran Greene, Senior Consultant, Cisco Systems, Corporate Consulting, Office of the Chief Technology Officer (CTO). Barry's current topics of interest are ISP Operations and Security, developing the features, functionality, and techniques to enhance an ISP's success. Barry has been with Cisco since 1996, traveling to all parts of the world helping ISPs and Telcos build the Internet. Barry is the co-coordinator for the Cisco ISP Workshop Program, designed to empower engineering talent in ISPs all over the world. He has more than 22 years experience in systems integration, security, operations, maintenance, management, and training on a variety of computer, internetworking, and telecommunications technologies.Philip Smith joined Cisco Systems in January 1998. He is a member of the Internet Architectures Group of Consulting Engineering, reporting into the Office of the CTO. His role includes working with many ISPs in the Asia Pacific region and the rest of the world, specifically in network strategies, design, technology, and operations, as well as helping with network configuration and scaling. He is also involved in training ISP engineers, co-founded the Cisco ISP Workshop Program, and provides ISP training at conferences and other networking forums around the world. Prior to joining Cisco, he spent five years at PIPEX (now part of UUNET's global ISP business), the UK's first commercial ISP. He was one of the first engineers working in the commercial Internet in the UK and played a key role in building the modern Intenet in Europe. Philip holds a Doctor of Philosophy and has a First-Class Honours Degree in Physics. He lives in Brisbane, Australia.