ReCSDN: Resilient Controller for Software Defined Networks

  • Hamid S
  • Zakaria N
  • Ahmed J
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Software Defined Networking (SDN) is an emerging network paradigm that provides central control over the network. Although, this simplifies the network management and makes efficient use of network resources, it introduces new threats to network reliability and scalability. In fact, a single centralized controller is a single point of failure. Moreover, a single controller may become a performance bottleneck as processing overhead increases. Distributed SDN controller platforms improve the reliability and scalability to some extent, however they remain vulnerable to Distributed Denial of Service (DDoS) attacks, specifically on control plane. We believe that there is a need for a distributed controller framework that is capable of providing service continuity without performance degradation in case of excessive network traffic or DDoS attacks on controller. In this paper, we aim to address the vulnerabilities of SDN control plane. We propose and implement an efficient and Resilient Controller for Software Defined Network (ReCSDN). This framework is capable of detecting and mitigating DDoS attacks timely and ensures the continuity of services without performance degradation. We created an experimental test bed using Mininet to conduct extensive experiments. We deployed ReCSDN on top of Open Network Operating System (ONOS) cluster to confirm the viability of our approach. The experiment results show that with ReCSDN, control plane is not only able to withstand excessive network load but will also continue to provide services in case of any controller failure.




Hamid, S., Zakaria, N., & Ahmed, J. (2017). ReCSDN: Resilient Controller for Software Defined Networks. International Journal of Advanced Computer Science and Applications, 8(8).

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