Much has changed in the networking world since 1995 when we wrote the first edition."Online"and"Web"joined"Internet"in the popular vocabulary.Cellular phones became as common as the telephone.The "fast"56 Kbps modem introduced with much publicity in 1998 was quickly surpassed by the megabit-per -second access delivered at home by cable TV and ADSL.And at work,100 Mbps Ethernet came to the desktop.

1.Overview

2.Network Services and Layered Architectures

3.Packet-Switched Networks

4.The Internet and TCP/IP Networks

5.Circuit-Switched Networks

6.Asynchronous Transfer Mode

7.Wireless Networks

8.Control of Networks

9.Control of Networks:Mathematical Background

10.Network Economics

11.Optical Networks

12.Switching

13.Toward a Global Multimedia Network

Bibliography

Index

Information technology is changing the world economy,society,and daily life.The change proceeds in waves ,originating with the new technologies,growth,and restructuring of the affected industries.Next come changes in other businesses as they absorb those technologies.New businesses are started,and traditional practices are overthrown.Societies and governments try to adapt to shifts in the demand for goods and services ,investment,and skilled workers.Millions of us change our daily routines in work and recreation and the way we interact with others,as we adapt,willingly or under pressure,to the new opportunities of the World wide Web.