The OSI Model’s Lower Layers

The OSI Model’s Lower Layers

Now that you have a broad overview of the OSI model and its seven layers, you will learn about
the functions of each layer in a little more detail, starting with the lower layers. In addition to the
functions, you’ll read about some of the devices that operate at those layers and some of their
installation concepts. Much of this information is similar to what you may find in other chapters.