Cisco CCNA Exam Tutorial Mapping the OSI Model on the TCPIP Model

The OSI model could be the model that a lot of networking personnel are informed about, but to earn your CCNA, you should know the OSI model, the TCP/IP model, and just how both the map together. The 4 layers from the TCP/IP structure could be compared to certain amount OSI model. It is critical to determine what each degree of the TCP/IP protocol architecture does, and the way these layers chart to the OSI model. The applying Layer with the TCP/IP model functions very similar tasks since the Application, Presentation, and Session layers from the OSI model. The Transport layer within the TCP/IP architecture is just like the Transport layer inside the OSI model. This layer will use TCP or UDP at the same time. The Internetwork layer within the TCP/IP architecture uses IP addresses to ascertain how packets ought to be routed. Keep in mind that the OSI model uses IP addresses, or "Layer 3 Addresses", in the Network layer. The two layers do very similar thing. This layer can also be known inside TCP/IP model as the web layer. The Network Interface layer inside the TCP/IP structure serves to define the protocols and also the hardware had to actually provide the data across the network. The Network Interface model does the job of the Data Link and Physical Layers inside OSI model. Maintaining all of this straight can be be extremely complicated when you first start your CCNA studies. Concentrate on the OSI model with your studies, but ensure you know how the TCP/IP model maps fot it design and you will be ready for CCNA exam success!

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