The OSI Model

• You need to know basic terms of protocol architectures and protocol functions?

• You need to know basic functions and services of the 7 layers?

The second edition of the (e)Book "The OSI Model - simply explained" gives the answers you are searching for in a simple and clear way:

• It describes the history and the general concept of the model as described in ISO 7498

• It describes the basic functions, tasks and services of each layer

• It gives examples of existing protocols for each layer

• It describes simple tasks of network elements like repeaters (or media converters), bridges,
   switches or routers within the associated layers of the model