About the Technical Reviewers

Aubrey Adams is a Cisco Networking Academy instructor in Perth, Western Australia. With a background in telecommunications design, Aubrey has qualifications in electronic engineering and management; graduate diplomas in computing and education; and associated industry certifications. He has taught across a broad range of both related vocational and education training areas and university courses. Since 2007, Aubrey has technically reviewed a number of Pearson Education and Cisco Press publications, including video, simulation, and online products.

Elan Beer, CCIE No. 1837, is a senior consultant and Cisco instructor specializing in data center architecture and multiprotocol network design. For the past 27 years, Elan has designed networks and trained thousands of industry experts in data center architecture, routing, and switching. Elan has been instrumental in large-scale professional service efforts designing and troubleshooting internetworks, performing data center and network audits, and assisting clients with their short- and long-term design objectives. Elan has a global perspective of network architectures via his international clientele. Elan has used his expertise to design and troubleshoot data centers and internetworks in Malaysia, North America, Europe, Australia, Africa, China, and the Middle East. Most recently, Elan has been focused on data center design, configuration, and troubleshooting as well as service provider technologies. In 1993, Elan was among the first to obtain the Cisco Certified System Instructor (CCSI) certification, and in 1996, he was among the first to attain Cisco System’s highest technical certification, the Cisco Certified Internetworking Expert. Since then, Elan has been involved in numerous large-scale data center and telecommunications networking projects worldwide.