Wendell Odom, CCIE No. 1624, is a 28-year veteran of the networking industry. He
currently works as an independent author of Cisco certification resources and occasional
instructor of Cisco authorized training for Skyline ATS. He has worked as a network
engineer, consultant, systems engineer, instructor, and course developer. He is author of
several best-selling Cisco certification titles. He maintains lists of current titles, links to
Wendell’s blogs, and other certification resources at www.TheCertZone.com.
Rus Healy, CCIE No. 15025, has worked on several Cisco Press projects, including the
third edition of this book as a coauthor, and the second edition as a technical reviewer. Rus
is chief technology officer of Annese & Associates, Cisco’s Education Partner of the Year
for the Northeast US and Canada. Rus serves on the Board of Directors of Habitat for
Humanity of New York State and Habitat for Humanity of Ontario County, NY.
Denise Donohue, CCIE No. 9566, is senior solutions architect for ePlus Technology, a
Cisco Gold partner. She works as a consulting engineer, designing networks for ePlus’s
customers. Prior to this role, she was a systems engineer for the data consulting arm of
SBC/AT&T. She has co-authored several Cisco Press books in the areas of route/switch and
voice. Denise has been a Cisco instructor and course director for Global Knowledge and
did network consulting for many years. Her areas of specialization include route/switch,
voice, and data center.