About the Technical Reviewers

Brion S. Washington, CCNA, is a senior voice engineer consultant in Atlanta, GA. He has more than ten years of Cisco experience, with the last five years dedicated to VoIP; he has worked with all the Cisco VoIP products. Brion has done many large projects involving VoIP, from complete network design, implementation, and the last level of escalation. He is currently finishing up his CCVP.

John Swartz, CCIE No. 4426, is the founder of Boson Software and training, 3DSNMP, Purple Penguin and Inner Four. Currently focused on cloud technologies using the VBLOCK Infrastructure Platform by VCE.

He is also focused on mobile technology his company has published over 500 apps for the iPhone. John created the original Cisco Press CCNA Network simulator, the Boson Netsim, and numerous practice tests. He has been a Cisco instructor for 12 years, starting with basic courses and now teaching Unified Computing, Nexus switching and other data center technology. John lives in Florida with his wife and three kids.