About the Technical Reviewers

Blair Buchanan, CCIE No. 1427, is a senior technical architect and convergence strategist with Sherwood Cameron Associates Limited, in Ottawa, Canada. He has 30 years experience in the communications business. He began his career as a software developer for real-time data communications in process-control applications. Blair has participated in ISO standards development and has taken lead roles in internetwork design for large enterprise and service provider businesses in Canada and the United States. He is currently involved in planning and designing internetworks for converged services over metro Ethernet and IP VPN infrastructures. Blair holds a bachelor degree in computer science and mathematics from the University of Western Ontario (1975). His involvement with Cisco began in 1992 as a Cisco instructor and in 1995 as a CCIE.

Gunter Van de Velde is a senior network consulting engineer on the Cisco System's Advanced Services team, and has been working in the field of core network design, and the implementation of IPv6, since early 2001. Gunter received his master's degree in electronics in 1993. After graduating, his first professional activities were based on TDMs, modems, and L2 bridges. He joined Cisco Systems in 1997, initially providing reactive worldwide support as part of the Technical Assistance Center, specializing in IP routing protocol technologies. In 1999, he joined the Advanced Services organization as a network consulting engineer, where he has been active in designing large backbone ISP networks and services.

Since 2001, Gunter has been working as a design architect for the European Commissionsponsored 6NET IPv6 project, and this year has become involved with the IETF, for which he is authoring a number of drafts in the v6ops working group. Gunter is a member of the IPv6 Task Force, and is a regular speaker at IPv6 conferences and events.

Dan Williston is a technical leader at Cisco Systems in Ottawa. He was a key member of the software development team responsible for IPv6 on the Cisco 12000 series router. Prior to joining Cisco, he worked at Nortel Networks as a senior software designer and team leader on inter-LAN switching on the Passport 6400. In the early 1990s, he worked at Norlite Technology, which developed PC-based computer integrated telephony applications and hardware. Dan has 17 years experience in telecommunications and data networking and holds a bachelor's degree in electrical engineering from McGill University.