Real-time network simulation support for scalable routing experiments
by Yue Li, Jason Liu, Raju Rangaswami
International Journal of Simulation and Process Modelling (IJSPM), Vol. 5, No. 2, 2009

Abstract: This paper describes a new software infrastructure that combines the scalability and flexibility benefits of real-time network simulation with the realism of open-source routing protocol implementations. The infrastructure seamlessly integrates the open-source XORP router implementation with a real-time large-scale network simulation engine. The design uses a novel forwarding plane offloading approach that decouples routing from forwarding and confines the more resource consuming forwarding operations inside the simulation engine to reduce I/O overhead. Experiments demonstrate superior performance of the software routing infrastructure without impairing accuracy. The infrastructure is shown to be able to support large-scale routing experiments on light-weight virtual machines.

Online publication date: Mon, 21-Sep-2009

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