There are hundreds of technologies and protocols used in telecommunications. They run the full gamut from application- to physical-level. It is overwhelming to try to keep track of them. Network Design, Second Edition is a broad survey of the major technologies and networking protocols and how they interrelate, integrate, migrate, substitute, and segregate functionality. It presents fundamental issues that managers and engineers should be focused upon when designing a telecommunications strategy and selecting technologies, and bridges the communication gap that often exists between managers and technical staff involved in the design and implementation of networks.