There are not much difference between the OSI and TCP/IP reference model. In both, the concept of independent stack of protocols is used. The function of the layer are also more or less same. In both model, starting from bottom up to transport layer, the functions of the layers is to provide end-to-end network independent transport service for communicating processes. The layers above the transport layer are application oriented. On the other hand there are…"Comparison of ISO-OSI and TCP/IP Reference Model"