This thesis deals with designing and developing an interactive environment to visualize specified network protocols, which will serve as a teaching tool. Learners can experiment with different parameters and scenarios through intuitive interfaces and dynamic simulations, reinforcing theoretical concepts hands-on. The theoretical aspect of this thesis focuses on exploring methods for implementing visualizations of Data Link Control (DLC) protocols. This exploration will examine the theoretical underpinnings of DLC protocols and how they can be effectively translated into visual representations. The practical objective is to develop a React-based Moodle plugin that visually represents DLC protocols, offering an interactive learning experience for students. The result of the work is the implementation of these protocols and their deployment in the Moodle environment on a test server in Metacentrum Cloud.