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About
The OSI Model Simulator is an interactive educational tool designed to help users visualize and understand how data is transmitted across the seven layers of the OSI model. It provides a detailed step-by-step encapsulation process using real protocols such as HTTP, HTTPS, SMTP, DNS, and FTP, across various transmission media like Ethernet, Wi-Fi, and Fiber. Users can customize their experience by entering messages, selecting protocols, and adjusting the simulation speed. The tool is suitable for students, teachers, network administrators, and anyone interested in networking principles. Available as a web and desktop application, it is free and open source, enabling users to learn without any cost or account requirements. Built with modern technologies, it supports multiple platforms including Windows, macOS, Linux, iOS, and Android, ensuring accessibility across devices.
Problem & solution
Problem
Hard to grasp OSI data encapsulation from static diagrams
Solution
Interactive simulator animates OSI layers with real protocols/media
Who it's for
Students, teachers, and networking learners
Main features
- 7-layer step simulation
- Protocol & media selection
- Layer headers + PDU labels
- Animation speed controls
- Web and desktop app
Use cases
- Classroom OSI model demo
- Certification study practice
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