Summary
Computer Networks: A Systems Approach argues that understanding computer networking requires a systems-oriented perspective, viewing individual components within a larger, complex system of interactions, using the Internet as the primary example. The book explains key networking principles and technologies, including switching, routing, internetworking, end-to-end protocols, congestion control, and resource allocation. It offers updated coverage on critical topics such as P2P, wireless, security, and applications like e-mail, the Web, IP telephony, video streaming, and peer-to-peer file sharing, with an increased focus on application layer issues.
Readers will gain an understanding of how users connect to networks, the mechanics of network design and architecture, and the workings of network protocols. The book is designed for graduate or upper-division undergraduate students, as well as industry professionals needing to understand network operations and protocols. It includes problem statements, elaborations on topics, discussions on emerging issues, exercises, and downloadable network simulation software with a lab experiments manual.
Key concepts
- Systems Approach — Encourages thinking about how individual network components fit into a larger system of interactions.
- Switching — A core concept explaining how data moves within networks.
- Routing — A core concept explaining how data is directed across networks.
- Internetworking — The concepts of connecting different networks together.
- End-to-End Protocols — Protocols that manage communication directly between source and destination hosts.
- Congestion Control — Mechanisms to manage and prevent network overload.
From the book
Description: Computer Networks: A Systems Approach, Fifth Edition, explores the key principles of computer networking, with examples drawn from the real world of network and protocol design. Using the Internet as the primary example, this best-selling and 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 book has a completely updated content with expanded coverage of the topics of utmost importance to networking professionals and students, including P2P, wireless, network security, and network applications such as e-mail and the Web, IP telephony and video streaming, and peer-to-peer file sharing. There is now…
Snippet: This book has a completely updated content with expanded coverage of the topics of utmost importance to networking professionals and students, including P2P, wireless, network security, and network applications such as e-mail and the Web, ...
Popular questions readers ask
- The text emphasizes a "systems-oriented approach." How would you explain what this means for understanding computer networks to someone with no technical background, clarifying why studying individual components in isolation is insufficient?
- The book highlights an "increased focus on application layer issues." Why is this particular layer a hub for "innovative and exciting research and design," and how do real-world applications like video streaming demonstrate its critical importance to end-users?
- Considering topics like "switching, routing, and internetworking" alongside "congestion control and resource allocation," how would you articulate the essential interdependencies between these concepts, explaining the practical consequences if one aspect fails to account for the others?
- The inclusion of "What's Next?" discussions suggests a forward-looking perspective. Based on the updated content on P2P, wireless, and security, what fundamental challenges or opportunities do you predict will define the "next" phase of network evolution, and how might current network design principles need to adapt?
- The text lists P2P, wireless, and network security as topics of "utmost importance." Explain, as if to a novice, *why* the rise and integration of these specific areas have fundamentally transformed the landscape of network design and usage in contemporary society.