The goal of network analysis is to investigate how the performance of traffic management mechanisms deployed in the network affect the allocation of resources among its users and the performance they experienced. This topic can be studied by the development model of traffic management mechanisms and observe how they perform by applying them to multiple network traffic flows. This book is useful to introduce the concept and principles of network performance analysis by example, by using a programming language J. This book tends to use a practical approach and develop functions in J to demonstrate mathematical concepts, allowing readers to explore the principles underlying the analysis of network performance. Using an example-driven approach to introduce the basics of network performance analysis ? Includes ATM QoS, and test the Internet congestion control Network Performance Analysis of the same will be interesting for network professionals and graduate students studying the topic by providing analytical tools are valuable and use J as a means of offering a practical treatment of the subject.