Computer Networks

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 textbook explains various protocols and networking technologies. It includes important chapter problems, shaded sidebars, discussions that deal with emerging issues in research, and related exercises. It is primarily intended for graduate or upper-division undergraduate classes in computer networking, but will also be useful for industry professionals retraining for network-related assignments and network practitioners seeking to understand the workings of network protocols and the big picture of networking.

• Features completely updated content with expanded coverage of the topics of utmost importance to students and networking professionals
• Provides coverage of Wi-Fi and cellular communication, security and cryptography, multimedia, and other applications
• Includes expanded guidelines for instructors who prefer to teach networking using a "top-down" approach
• Presents chapter problem statements which introduce issues to be examined and shaded sidebars that elaborate on topics and introduce related ones