Research for QoS of MPLS VPN based on Log-infinitely Divisible Cascades

For MPLS VPN (Multi-Protocol Label Switching Virtual Private Network) not suitable for the complex business logic and application with high security requirements because of its lack of providing encryption and certification, a scheme of enhancing MPLS VPN QoS is proposed. It uses the method based on "Log-infinitely Divisible Cascades", realizes fine-grained security service strategy by integrating VPN and IPsec (IP security) and using cryptographies such as encrypted authentication, etc. Simulation results show that the proposed scheme increases the safety factor to clients and ensure the need for QoS of the application of high-end users.