Technological advances have created new possibilities in education, requiring the development of new pedagogical practices that contribute to the process of teaching and learning. This paper presents a proposal for the construction of an immersive virtual laboratory of computer networks in 3D OpenSim environment. The main advantages of the proposal are the development and the treatment of issues related to context-aware computing, such as: cognitive styles, technology used, analysis of learning, expertise and quality of context. The prototype of this laboratory is currently in development, with some positive partial results.