Layer Function Model TCP / IP

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      Layer Function Model TCP / IP - After we have discussed about the function layer of the OSI model, this time we will discuss about the function layer TCP / IP model. Well might ask what's the difference OSI model with TCP / IP model? Actually the difference between OSI model with TCP / IP is the TCP / IP model only summarize the 7 layer OSI to only 4 layers. 

      TCP / IP was originally created by the DoD (Department of Defence) and is used to ensure and maintain data integrity in the war, but in the end the model of TCP / IP is used commercially. 

 

      Now we discuss each layer in the TCP / IP model is .... check this out .. 

1. Application Layer (Layer 4): Application Layer 3 is a summary of the top layer is the layer of the OSI Application, Presentation, and Session. So the existing protocols in this layer will perform tasks that have a similar focus to the Application layer, Presentation, Session which essentially defines protocols for node to node communication applications and controls user-interface specifications. 
2. Transport Layer (Layer 3): Transport Layer in the TCP / IP model has the same functionality as the Transport layer of the OSI model. This layer handles issues like creating end-to-end communication is reliable and ensures error-free data during transmission. This layer also handles packet sequence and maintain data integrity. 
3. Internet Layer (Layer 2): the Internet Layer TCP / IP model has the same functionality as the Network layer of the OSI model. This layer serves to allocate protocols relating to the logical transmission of a packet to the entire network. This layer keep addressing the host with the IP address and handles the routing of packets through multiple networks. 
4. Network Interface Layer (Layer 1): Network Interface Layer has a function similar to the Data Link and Physical layers of the OSI model, which monitors the data exchange between the host and the network. Network Interface is also in charge of overseeing the hardware addressing and defines protocols for the physical transmission of data. 

      A few of my posts about the Layer Function Model TCP / IP may share a bit of knowledge that I can add to our knowledge all. We are sorry if there are errors in the writing of this article. 

Thank you .... 

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