October 2001
Beginner
1024 pages
25h 8m
English
Content preview from FreeBSD® Unleashed
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TCP/IP
Now that we know something about different network components and protocols, let's take a look at how they all fit together. The TCP/IP stack is the collection of sequential layers of protocols and their handlers, which inherit tasks and data upward and downward from each other. As we can see in Figure 22.7, data travels down the stack from user-level applications through the various protocols we've discussed before reaching the wire.
Figure 22.7. TCP/IP stack layering diagram, showing common applications and their path to the Ethernet link.
An application takes raw data and hands it to the transport layer (either TCP or UDP), which adds ...
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