The user's need in telecommunication networks are growing very fast. The bandwidth requirement became very high to providing new services and applications every day. A telecommunication network requires early design, planning, maintenance, continuous development and updating, as demand increases. In that respect, the authors are forced to incessantly evaluate the telecommunication network's efficiency by utilizing methods such as measurement, analysis modeling and simulations of these networks. Measuring, analyses and the modeling of self-similar traffic and utilizing the bandwidth efficiently have still been one of the main research challenges.