Computer Networking

Computer Networking: A Top-Down Approach, 9th Edition, written by James F. Kurose and Keith Ross, is a comprehensive textbook that introduces computer networking concepts by starting at the application layer and moving toward the physical layer. By beginning with familiar application-level services, the text enables students to grasp functional networking concepts before analyzing lower protocol layers and underlying hardware mechanisms.

The material synthesizes core networking topics into structured thematic arcs, progressing from application protocols through transport structures, network layer data and control planes, link layer operations, and wireless communication systems. To reflect recent technological developments, the edition incorporates updated material on Wi-Fi 6, 5G cellular networks, and the software-ization of cellular networks.

Designed for introductory networking courses, the text fits academic curricula within computer science, electrical engineering, and information systems departments. Its top-down structure supports effective classroom instruction, offering clear conceptual framing and systematic practice for students entering the field.