Seven Layers in the OSI Model Explained
The OSI or Open Systems Interconnection Model defines a standard for the communication functions of a computer system. There are 7 layers in the OSI model.
1. Physical Layer - the lowest layer and is concerned with the transmission and reception of the unstructured bit stream over the physical medium
2. Data Link Layer - provides the transfer of data frames from one node to another over the physical layer
3. Network Layer - controls operation of the subnet, determining which route the data should take based on network traffic
4. Transport Layer - ensures that messages are delivered accurately, in sequence, without any duplication or data loss.
5. Session Layer - allows sessions to be established between stations running the same process
6. Presentation Layer - formats the data so it can be presented in the Application Layer. The Presentation Layer is basically the network translator
7. Application Layer - serves as the window for users and application processes to access the network services.
For further information on the layers, go HERE
1. Physical Layer - the lowest layer and is concerned with the transmission and reception of the unstructured bit stream over the physical medium
2. Data Link Layer - provides the transfer of data frames from one node to another over the physical layer
3. Network Layer - controls operation of the subnet, determining which route the data should take based on network traffic
4. Transport Layer - ensures that messages are delivered accurately, in sequence, without any duplication or data loss.
5. Session Layer - allows sessions to be established between stations running the same process
6. Presentation Layer - formats the data so it can be presented in the Application Layer. The Presentation Layer is basically the network translator
7. Application Layer - serves as the window for users and application processes to access the network services.
For further information on the layers, go HERE
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