The document outlines the 7 layers of the OSI reference model, detailing each layer from the physical layer to the application layer. It includes a comparison between the OSI model and the TCP/IP model. The focus is on the functions performed by different OSI layers.

1. 7 LAYERS
OSI REFERENCE MODEL

2. The OSI Reference Model

3. Comparison between OSI and TCP/IP Layer

4. Layer 1 – Physical Layer

5. Layer 2 – Data Link Layer

6. Layer 3 – Network Layer

7. Layer 4 – Transport Layer

8. Layer 5- Session Layer

9. Layer 6- Presentation Layer

10. Layer 7- Application Layer

11. Function performed by different
OSI Layers