As computer networks grow, network managers and system administrators are challenged to improve their network's performance. This book offers multi-vendor, multi-protocol, heterogeneous tools for evaluating and improving network performance. Covers the fundamentals of network performance analysis; the parameters found in media such as Ethernet, Token Ring and FDDI; interconnect devices such as hubs, bridges, routers, and Ethernet switches; wide area technologies such as T-!, Frame Relay, and X.25; server architecture; and the application of practical tools such as LOTUS 123, MathCAD, and PlanNet to real network performance problems. For network administrators, network designers, network performance analysts, and network consultants.