Abstract
In this paper, a realtime testbed for Software Defined Networks (SDN) was implemented using Raspberry Pi as OpenFlow (OF) switches. The implemented testbed provides practical development and testing environment for SDNs. Open vSwitch (OVS) was used to observe the flows and events in the network. With the POX integration, this paper easily provide detailed analysis results for any testing process. Additionally, this study implemented priority queuing algorithm, which manages the flows with respect to their QoS requirements. Priority queuing is a scheduling mechanism that provides a fixed number of priority levels to different service classes and can be used for differentiated services provisioning. Differentiated service is a QoS architecture that seeks to provide service differentiation to a small number of service classes. Finally, this study physically implemented the proposed algorithm to our testbed and validate the improvements of traffic and network utilization in terms of throughput.
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