Transmission Control Protocol/Internet Protocol and The OSI model.

Transmission Control Protocol/Internet Protocol and The OSI model.

TCP/IP stands for Transmission Control Protocol/Internet Protocol, which is a set of networking protocols that allows two or more computers to communicate. Let's discuss the relationship between the TCP/IP model and the OSI model in this article.

We will discuss Transmission Control Protocol/ Internet Protocol in relation to the OSI model we discussed in our earlier article: Open System Interconnection Model


The Internet uses a system of telecommunications protocols that has become so widely used that it is equivalent to network architecture. The Internet’s protocol suite is called Transmission Control Protocol /Internet Protocol and is known as TCP/IP.

TCP/IP consists of five levels of protocols that can be related to the seven layers of the OSI architecture.

TCP/IP is used by the Internet and by all Intranets and extranets. Many companies and other organizations are also converting their client/server networks to TCP/IP.

There are five levels of the TCP/IP. These are listed below for your reference.


  1. Application or process layer
  2. Host-to-Host Transport layer
  3. Internet Protocol (IP)
  4. Network Interface
  5. Physical layer


A brief analysis of TCP/IP in relation to the OSI model is depicted in the image below.

Network interface physical layer a brief analysis of TCP IP in relation to the OSI model is depicted in the image below .

The application layer, presentation layer and the session layer of the OSI model is same as the application or process layer of the TCP IP model. The Application layer provides communication services for end user applicant. The Presentation layer provides appropriate data transmission formats and codes. And the session layers supports the accomplishments of Telecommunication session.

Host to host transport layer and transport layer are quite similar. This supports the organisation and transfer of data between nodes in the network.

In TCP/Ip there is the Internet Protocol while in the OSI model, there is the Network Layer. And it provides appropriate routing by establishing connections among the network links.

The network Interface is the same as the data link layer in the OSI model and it supports error-free organisation and transmission of data in the network.

The physical layers are same in both the models and it provides physical transmission of data on the telecommunications media on the network.


Well, that's it on TCP/IP model in relation with the OSI model. If you have any queries, doubts or suggestion, please let me know. Click on ask a question on the left panel of your screen.

Thank You.