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Computer Networks, Fourth Edition
book

Computer Networks, Fourth Edition

by Andrew S. Tanenbaum
August 2002
Intermediate to advanced content levelIntermediate to advanced
912 pages
27h 47m
English
Pearson
Content preview from Computer Networks, Fourth Edition

Chapter 5. The Network Layer

The network layer is concerned with getting packets from the source all the way to the destination. Getting to the destination may require making many hops at intermediate routers along the way. This function clearly contrasts with that of the data link layer, which has the more modest goal of just moving frames from one end of a wire to the other. Thus, the network layer is the lowest layer that deals with end-to-end transmission.

To achieve its goals, the network layer must know about the topology of the communication subnet (i.e., the set of all routers) and choose appropriate paths through it. It must also take care to choose routes to avoid overloading some of the communication lines and routers while leaving others ...

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Publisher Resources

ISBN: 0130661023Purchase book