A Conceptual Framework for Networking
The Open Systems Interconnection (OSI) model is a foundational blueprint that standardizes network communication functions into seven logical layers. This interactive guide helps you explore each layer, understand the data journey, and see how it compares to the modern TCP/IP model.
The 7 Layers of the OSI Model
Click on each layer to reveal its specific functions, protocols, and data units.
The Journey of Data
Visualize how data is encapsulated and decapsulated as it travels through the OSI stack.
Transmission Medium
-- Network Cable / Wi-Fi --
Click 'Next' to begin the data transmission simulation.
OSI vs. TCP/IP Model
A side-by-side comparison of the theoretical OSI model and the practical TCP/IP model.
OSI Model (7 Layers)
TCP/IP Model (4 Layers)
Layer Abstraction & Complexity
Enduring Relevance
Why a theoretical model remains indispensable in modern networking.
Foundational Education
The model provides a universal language and a structured framework, simplifying complex networking concepts for students and professionals alike.
Troubleshooting
Its "divide and conquer" approach allows network administrators to systematically isolate problems to a specific layer, speeding up diagnostics.
Cybersecurity
Security professionals use the OSI model to classify assets, identify vulnerabilities, and apply security controls at the appropriate layer.