Research on MPLS VPN Networking Application Based on OPNET

There are some disadvantage in traditional "special line" networking, IP network, frame relay and the ATM network. A VPN networking project which based on MPLS is put forward in order to solve the problem. Then analyze the realization of MPLS VPN. The simulation principle, simulation process and simulation scenes are introduced by OPNET, get the results that MPLS VPN has lower delay and packet losing. So an application is given. At last, a useful conclusion is got: MPLS VPN has vast application foreground in company, business enterprises which cross over different location and military communication networking.