The protocol stack used on the internet is the internet protocol suite. Tcpip model internet protocol suite network fundamentals part 6 youve seen the osi model, now see the tcpip model. It is usually called tcpip after two of its most prominent protocols, but there are other protocols as well. A networking model offers a generic means to separate computer networking functions into multiple layers. It started as a competitor, but has grown into a suite of commonly used. The tcp ip model is based on a fi velayer model for networking. The tcpip model was adopted and condensed into 4 layers.
The internet protocol suite is the conceptual model and set of communications protocols used on the internet and similar computer networks. Such a model of layered functionality is also called a protocol stack or protocol suite. The host has to connect to network using some protocol, so that it can send ip packets over it. The internet protocols are the worlds most popular opensystem nonproprietary protocol suite because they can be used to communicate across any set of interconnected networks and are equally well suited for lan and wan communications. Internet protocol ip is employed in internet layer. Doing so creates a better understanding of the network data flow. The diagram given below shows the co mparison between osi model layers. This protocol varies from host to host and network to network. Pdf communications between computers on a network is done through protocol suits. Chapter 1 introduction to networking and the osi model. Presentation application session transport network data link physical layer 7 layer 6 layer 5 layer 4 layer 3 layer 2 layer 1.