Simulation Of MPLS Using OPNET

With the rapid development of computer networks and with the deepening of informatization reform on human society, people's demand for computer networks is increasing. Becouse related technologies about next generation network are still discussed today, it is a significant to find a way that can not only enhance performance of the computer networks for enterprises, but also pay less costs to upgrade the existing computer networks. Currently, MPLS (Multi-protocol label switching) technology is paid more and more attention because of its excellent ideas and superior performance.In this thesis, the traffic engineering, quality of service, and failure recovery of MPLS are simulated by using OPNET Modeler. The simulations show that the performance of MPLS in traffic management, load balancing and failure recovery is better than traditional IP network, and that MPLS is able to work well together with traditional IP network to give full play to its own advantages. Thus, it is a good choice using MPLS to upgrade the performance of the existing computer networks.The first part of this thesis (including chapter 1,2) introduces the content and significance of the topic, and the related knowledges of MPLS technology. The second part (including chapter 3,4,5) discusses the principle and applications of the multi-protocol label switching in traffic engineering, diff-serv and network failure recovery, simulates and analyses the performances of corresponding functions. The simulation results show that MPLS technology can be well integrated with existing computer networks, and can effectively improve the performance of the existing computer networks. The third part gives the summary of this thesis and the future research work.