Computer Networks and Internets

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9780135045831: Computer Networks and Internets

Computer Networks and Internets is appropriate for all introductory-to-intermediate courses in computer networking, the Internet, or Internet applications; readers need no background in networking, operating systems, or advanced mathematics.

 

Leading networking authority Douglas Comer presents a wide-ranging, self-contained tour of the concepts, principles, and technologies that enable today’s Internet to support applications ranging from web browsing to telephony and multimedia. This Fifth Edition has been thoroughly reorganized, revised, and updated: it includes extensive new coverage of topics ranging from wireless protocols to network performance, while reducing or eliminating coverage of older protocols and technologies. Comer begins by illuminating the applications and facilities offered by today’s Internet. Next, he systematically introduces the underlying network technologies and protocols that make them possible: low-level data communications; packet switching, LAN, and WAN technologies; and Internet protocols such as TCP, IP, UDP, and IPv6. With these concepts and technologies established, he introduces several of the most important contemporary issues faced by network implementers and managers, including quality of service, Internet telephony, multimedia, network security, and network management. Comer has carefully designed this book to support both top-down and bottom-up teaching approaches. Students need no background in operating systems, and no sophisticated math: Comer relies throughout on figures, drawings, examples, and analogies, not mathematical proofs.

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Review:

"I just could not put it down before I finished it. It was simply superb." ― Lalit y. Raju, Regional Engineering College, India

"An excellent book for beginners and professionals alike. The coverage is comprehensive and up-to-date (including IP Telephony and NAT). The chapters are concise and easy to follow, a hallmark of Dr. Comer's writing style." -John Lin, Bell Labs

From the Back Cover:

Best-selling author and leading computer networking authority Douglas Comer builds a comprehensive picture of the technologies that allow the Internet to provide application services such as web browsing and instant messaging. This edition includes new chapters on the use of Internet technology.

The book offers an incomparable tour that explains everything from Internet applications to the lowest levels of packet transmission. It shows how protocols are layered, and explains how a given layer provides services used by the next higher layer.

KEY FEATURES

Revised and updated throughout, including:

  • FAQ email list with answers to questions from a leading networking authority
  • NEW―Chapter 24, User Datagram Protocol: Introduces an end-to-end datagram protocol and shows how to use it. Once considered insignificant, UDP forms the important basis for multicast and broadcast applications and new applications that transfer audio or video.
  • NEW―Chapter 26, Network Address Translation (NAT): Explains how NAT technology overcomes a major limitation of the Internet by allowing multiple computers to share a single IP address, especially important for residential and small business installations.
  • NEW―Chapter 33, IP Telephony: Discusses the most exciting new Internet application, transmitting telephone calls over the Internet (VoIP). The chapter explains competing standards for IP telephony, including protocols such as H.323, Session Initiation Protocol (SIP), and MegacoIt also shows a sample SIP session.
  • Includes a CD-ROM with animations, packet traces, more than 200 photos of networking equipment, code from the book and copies of protocol standards. A Web site with additional items including instructional materials is at http://netbook.cs.purdue.edu
  • Accompanying lab manual, Hands-On Networking with Internet Technologies, Second Edition, offers an integrated package for teachers.

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