Tell me the working of OSI 7 layers?

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The OSI model is a conceptual framework that defines the functions of a network into seven distinct layers.

The OSI model stands for Open Systems Interconnection model.
It helps in understanding how different network protocols interact and work together.
The seven layers are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Each layer has its own specific functions and protocols.
Data is encapsulated and passed down the layers, and decapsulated and passed up the layers.
Example: When you visit a website, the Application layer interacts with the Presentation layer, which then interacts with the Session layer, and so on.
Each layer adds its own header or trailer to the data as it moves through the network.
The layers provide a modular approach to network design and troubleshooting.

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