Ray Blair is a consulting systems architect who has been with Cisco Systems for more than eight years, working primarily on security and large network designs. He has nearly 20 years of experience with designing, implementing, and maintaining networks that have included nearly all networking technologies. His first four years in the high-technology industry started with designing industrial computer systems for process monitoring. Mr. Blair maintains three Cisco Certified Internetwork Expert (CCIE) certifications in Routing/Switching, Security, and Service Provider. He also is a Certified Novell Engineer (CNE) and a Certified Information Systems Security Professional (CISSP).
Arvind Durai has been a network consulting engineer for Cisco Advanced Services for nine years and has worked on large enterprise networks for network designs. One of his focuses has been on security and he has planned, designed, implemented, and maintained security infrastructure for many of the advanced service enterprise customers. He has written several Cisco Advanced Services design guides for various technologies. Mr. Durai maintains a CCIE (Cisco Certified Internetwork Expert) certification in Routing & Switching and Security. Mr. Durai holds a bachelor of science in Electronics and Communication, a masters in Electrical Engineering (MS), and a masters in Business Administration (MBA).