Research On Simulation And Virtualization Based Virtual Overlay Network Model

Today's Internet is robust, and can provide various services. But with the exponential development of the network scale, and the increasing variety of application needs, we begin realizing the fact that Internet is becoming ossified. It is under this circumstance that this paper proposes a new simulation and virtualization based virtual overlay network model. This network model can set up an overlay network model of great independence, security, flexibility and location-identity split. This enables users to provide or enjoy various personal services, both on and under the application layer, in their own private network.The key technology within the virtual overlay network model is virtualization, which includes the virtual router, virtual network adapter, and virtual topology, etc. Based on research of the mainstream simulation technologies, this network model is simulated using ns2, and related network performance parameters are evaluated. Also, to test its system performance, the Planetlab testbed is further used along with ns2.Moreover, this paper discusses the practical use of the network model. Its application is so wide that it covers the individual use, the organizational use, and the research use. The research use enables the researchers to experiment and simulate the most advanced network technologies more easily and flexibly. In particular, on the basis of the research on the architecture of the existing Information Security Public Service Platform, this paper discusses the application of this network model in it, and presents the framework of a generation of Information Security Public Service Platform. This enables the platform to fully exert its superiority.