Policy-based QoS management framework for software-defined networks

Al-Jawad, Ahmed, Shah, Purav ORCID: https://orcid.org/0000-0002-0113-5690, Gemikonakli, Orhan ORCID: https://orcid.org/0000-0002-0513-1128 and Trestian, Ramona ORCID: https://orcid.org/0000-0003-3315-3081 (2018) Policy-based QoS management framework for software-defined networks. 2018 International Symposium on Networks, Computers and Communications (ISNCC). In: ISNCC 2018, 19-21 June 2018, Rome, Italy. e-ISBN 9781538637791, e-ISBN 9781538637784, pbk-ISBN 9781538637807. [Conference or Workshop Item] (doi:10.1109/ISNCC.2018.8530994)

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Abstract

With the emerging trends of virtualization of cloud computing and big data applications, network management has become a challenging problem for optimizing the network state while satisfying the applications’ Quality of Service (QoS) requirements. This paper proposes a policy-based management framework over Software-Defined Networks (SDN) for QoS provisioning. The proposed approach monitors the QoS parameters of the active flows and dynamically enforces new decisions on the underlying SDN switches to adapt the network state to the current demanded high-level policies. Moreover, the proposed solution makes use of Neural Networks to identify the violating flows causing the network congestion. Upon detection of a policy violation two route management techniques are implemented, such as: rerouting and rate limiting. The proposed framework was implemented and evaluated within an experimental test bed setup. The results indicate that the proposed PBNM-based SDN framework enables QoS provisioning and outperforms the default SDN in terms of throughput, packet loss rate and latency.

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