I am pleased to report theat this great book has gotten better.The philosophy of the book remains unchanged:to be timely but timeless in the material it presents .Thetimeless component is still there,better than ever.The book is an excellent introduction to the core concepts and fundamental principles that will remain useful even when the standards change and the technology evolves.If you want to understand how entworks work,not just how the packet headers are formatted,this is the book to read.

Foreword

Foreword to the First Edition

Preface

1.Foundation

Problem:Building a Network

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2.Direct Link Networks

Problem:Physically Connecting Hosts

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3.Packet Switching

Problem:Not All Networks Are Directly Connected

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4.Internetworking

Problem:There Is More Than One Network

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5.End-to-End Protocols

Problem:Getting Processes to Communicate

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6.Congestion Control and Resource Allocation

Problem:Allocating Resources

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7.End-to-End Date

Problem:What Do We Do with the Date?

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8.Network Security

Problem:Securing the Date

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9.Applications

Problem:Applications Need Their Own Protocols

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Open lssue:Programming the Network

Further Reading

Exercises

Glossary

References

Index

Designing abstract channels involves first understanding the communication needs of a representative collection of applications,then extracting their common communica tion requirements ,and finally incorporating the functionality that meets these require-ments in the entwork.