An Autonomic QoS management architecture for Software-Defined Networking environments

Software-Defined Networking (SDN) is an innovative approach to provisioning and delivering QoS (Quality of Service) services, yet it is still devoid of context-differentiating services. In this paper we propose a network application (Autonomic QoS Broker) and a controller module that implements the OpenVSwitch Database Management Protocol (OVSDB). These two components were implemented and validated in order to provide QoS management with queue prioritization in a SDN environment. Through the experiments, we verified that the resources were provided with differentiation, according to the context of the Knowledge Base. The Broker was successfully able to manage the flows, increasing their bandwidth when possible and changing flows' paths when the links were congested or with latency issues.

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