Computer Networks: A Systems Approach, Sixth Edition, explores the key principles of computer networking, using real world examples from network and protocol design. Using the Internet as the primary example, this best-selling classic textbook explains various protocols and networking technologies. The systems-oriented approach encourages students to think about how individual network components fit into a larger, complex system of interactions. This sixth edition contains completely updated content with expanded coverage of the topics of utmost importance to networking professionals and students, as provided by numerous contributors via a unique open source model developed jointly by the authors and publisher. Hallmark features of the book are retained, including chapter problem statements, which introduce issues to be examined; shaded sidebars that elaborate on a topic or introduce a related advanced topic; What’s Next? discussions that deal with emerging issues in research, the commercial world, or society; and exercises. This book is intended primarily for graduate or upper-division undergraduate classes in computer networking. It will also be useful for industry professionals retraining for network-related assignments, as well as for network practitioners seeking to understand the workings of network protocols and the big picture of networking. 

Computer Networks ISE, Fifth Edition, is the sole introductory networking book written by authors with first-hand experience with several of the protocols covered in the book who have actually designed some of them as well and who are still actively designing the computer networks today. The newly revised edition continues to offer an enduring, practical understanding of networks and their building blocks through rich, example-based instruction. The focus is not just on the specifications comprising today's systems but how key technologies and protocols actually work in real-world setting to solve specific problems. The new edition features increased accessibility by clearly separating the advanced material from more fundamental via special headings and boxed features, a structure that makes it easier to teach top-down, less dependence on code to explain protocols, vastly improved ancillary package to include robust lecture slide package, and shift to higher levels in the protocol stock where the real innovation is happening currently. the book is targeted at networking professionals and upper level undergraduate and graduate students in CS, EE, and CSE programs.