Heterogeneous Implementation of Openflow Data-Centre Network Testbed
Keywords:
Data center, SDN, OpenFlow, testbedAbstract
In this paper, we present results of performance evaluation of OpenFlow data-center (DC) network testbed, developed as part of BIO-ICT research and innovation platform. The testbed provides rich testing environment for experimental research in the area of software-defined networking (SDN), which is widely recognized as a fundamental technology for next generation DCs. The cost-efficient and solid performance testbed design is achieved with the heterogeneous data plane, consisted of software and hardware OpenFlow switches. In order to identify the most suitable solution for the control plane, we compared performance of four open-source SDN controllers (ONOS, Floodlight, POX and Ryu) via Cbench benchmarking tool. In addition, we have conducted several testbed experiments which provide useful insight into the data plane performance when different controllers are used. The obtained results indicate that Floodlight controller outperforms ONOS, POX and Ryu controllers in terms of throughput, processing latency and scalability.
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