Denise Donohue, CCIE No. 9566, is a senior solutions architect for ePlus Technology, a Cisco Gold partner. She works as a consulting engineer, designing networks for ePlus’ customers. Prior to this role, she was a systems engineer for the data consulting arm of SBC/AT&T. She has coauthored several Cisco Press books in the areas of route/switch and voice. Denise was 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.