2.9 OSI Reference Model

The OSI model was an international effort to create standards for computer communication and generic application services. The OSI reference model permits the interconnection of systems of different origins which respect the standards and protocols of this model.

The OSI model is not concerned with the internal architecture of systems but with their external behaviour. Seven standardized layers correspond to two groups of functions: The transmission oriented layers and the application oriented layers.

Show Animation 2.9-1.