How Do Multiple Network Cards Influence the Software Router Performance?
نویسندگان
چکیده
The usage of cost-efficient and dynamically adaptable commodity PC hardware instead of specialized networking hardware has aroused strong interest in software routers. Testbed measurements as well as modeling and simulations of such system are important methodologies for finding bottlenecks in the packet processing to predict and optimize the performance. In this paper, we investigate the impact of the number of network cards with respect to the software router performance. We predict the performance of software routers based on a validated model which we obtain from real testbed measurements. Keywords— commodity hardware; packet processing; resource contention; network card; simulation model; ns-3; Linux NAPI
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