The TCP/IP Protocol Stack
The TCP/IP model is an example of a protocol stack, that is, a number of protocols that work together in a well-defined hierarchy, to provide communications between devices on a network, and is the mechanism used by the Solaris operating environment. You saw in the previous chapter that a protocol is a set of rules that govern how data communication takes place. A protocol stack, such as this, is hierarchical in that the overall structure is the model itself. The structure contains a number of layers, each carrying out a separate function, and each function is subjected to certain rules about how the function is executed—the protocol.
A protocol stack has the following properties:
Each layer exists to carry out a specific ...
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