Save 40% on books and eBooks + 70% on videos now through May 31*—use code PROGRAM. Shop now.
Matthew J. "Cat" Castelli has more than 13 years of experience in the telecommunications networking industry, starting as a cryptologic technician (communications) in the United States Navy. Cat has since been working as a principal consultant for a Cisco(r) Professional Services partner and as a senior technical consultant/enterprise network design engineer for a global telecommunications integrator. Cat has broad exposure to LAN/WAN, Internet, and Alternative technologies (VoX) for service provider and enterprise networks of all sizes including implementation, application, configuration, integration, network management, and security solutions.