The OSI Model
Peter J. Boait, Geoff Neville, Ruth Norris, Michael Pickman, Mark Tolhurst, John B. Walmsley · 1988
The preceding chapter has discussed the philosophy of layered communications architectures, and the functions which should be performed within such an architecture. It is appropriate now to focus on the seven layer OSI basic reference model as defined by the International Organization for Standardization (ISO).