OSI Model Layers
Software Engineer path · lesson 63 of 99Animate data encapsulation and decapsulation as it travels through the 7 layers of the OSI model.
Down the stack
Order the OSI layers as data is sent, from the application down to the wire.
Tap a piece, then tap where it goes — or drag it. Tap the tray to take one back.
- 1Drop a step here
- 2Drop a step here
- 3Drop a step here
- 4Drop a step here
- 5Drop a step here
- 6Drop a step here
- 7Drop a step here
Test your knowledge
During the encapsulation process, what does the Transport layer wrap the Application Data into?
The short version
The OSI model is like sending a physical package. Layer 7 is writing the letter. Layer 6 is translating it. Layer 5 is putting it in an envelope. Layer 4 is choosing certified mail. Layer 3 is adding the delivery address. Layer 2 is the mail truck. Layer 1 is the physical road it travels on.
In more depth
The OSI Model
The Open Systems Interconnection model describes 7 layers that computer systems use to communicate over a network.
The Layers
Interview Questions
References & Further Reading
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