Using computer network simulation tools as supplements to computer network curriculum

Computer network technologies have been growing explosively. Teaching computer networking principles can be enhanced using simulation through the use of interactive (not statistical based) simulation. The curriculum is based on the theory that through networking simulation programs, students are able to graphically implement the concepts learned in their coursework. With networking simulation tools, students can construct, tune, and analyze network performance while reinforcing their understanding of networking theory. Network simulation tools save money by offering the user a tool to enhance the design and integration of networks. There are many network simulation tools that allow users to model LANs, MANs, and WANs on the market. This paper describes our approach to develop a computer network laboratory that enhances the understanding of a computer network course. Different computer network simulation tools have been considered and COMNET III has been selected as the tool of choice. Five labs have been developed. COMNET III is a network simulation tool that allows students and networking professionals to model, tune, and analyze the performance of various types of networks. It fosters a building-block approach by utilizing a GUI interface that is comprised of "blocks " or objects representing many of the objects used in real networks. The user has the ability to adjust the objects' parameters using either default, constant, or algebraic values to better model the objects' functions.