About the Authors
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 co-authored several Cisco Press
books in the areas of route/switch and voice. Denise has worked as a Cisco
instructor and course director for Global Knowledge and was a network consultant
for many years. Her areas of specialization include route/switch, voice, and data
center.
Brent Stewart, CCNP®, CCDP®, CCSI, MCSE, is the manager of Connectivity
Services at CommScope. He is responsible for designing and managing a largescale
worldwide voice, video, and data network. Previously he was a course director
for Global Knowledge and participated in the development of BSCI with Cisco
and has written and taught extensively on CCNA® and CCNP. Brent lives in
Hickory, NC, with his beautiful wife, Karen, and their mischievous children
Benjamin, Kaitlyn, Madelyn, and William.
About the Technical Editors
‘Rhette (Margaret) Marsh has been working in the networking and security
industry for over ten years, and has extensive experience with internetwork design,
IPv6, forensics, and greyhat work. She currently is a design consultant for Cisco
in San Jose, CA, and works primarily with the Department of Defense and
contractors. Before this, she worked extensively both in the financial industry as a
routing and switching and design/security consultant and also in an attack attribution
and forensics context. She currently holds a CCIE in Routing and Switching
(CCIE No. 17476), CCNP, CCDP, CCNA, CCDA, CISSP and is working towards
her Security and Design CCIEs. In her copious free time, she enjoys number
theory, arcane literature, cycling, hiking in the redwoods, sea kayaking, and her
mellow cat, lexx.