A guide to understanding the troubleshooting tools, commands, and methodologies that enable reliable performance for remote access services Gain a solid grasp of enterprise telecommunications technology fundamentals, including service options and clocking, line coding, and framing in carrier systems Understand how network traffic is handled by carriers and service providers Examine a layer-by-layer, systematic approach to troubleshooting issues Design, configure, and troubleshoot T1 and PRI circuits, text and PPP dial-in and dial-out services, and Cisco AS5000...

The subject of security never strays far from the minds of IT workers, for good reason. If there is a network with even just one connection to another network, it needs to be secured. RADIUS, or Remote Authentication Dial-In User Service, is a widely deployed protocol that enables companies to authenticate, authorize and account for remote users who want access to a system or service from a central network server. Originally developed for dial-up remote access, RADIUS is now used by virtual private network (VPN) servers, wireless access points, authenticating Ethernet switches, Digital...

Authorized preparation materials for CCIE candidates. Prepare for the CCIE lab exam while mastering essential protocols and technologies Learn new design and configuration strategies for ATM, IP multicasting, network management, switching architectures, CIP, and network security Implement practical networking techniques to build scalable, reliable, and secure networks Learn to identify key technologies and appropriate implementations for your internetwork design Isolate and solve problems easier with detailed configuration examples and case studies Cisco CCIE...