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1.8. Summary

In this chapter we discussed the structure of TCP/IP, the protocol suite upon which the Internet is built. We have seen that TCP/IP is a hierarchy of four layers: Applications, Transport, Internet, and Network Access. We have examined the function of each of these layers. In the next chapter we look at how the IP datagram moves through a network when data is delivered between hosts.

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1.7. Application LayerBook Index2. Delivering the Data
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