SDN Multi-domain Network Intergrated Management And Control Platform Based On ONOS

SDN(Software Defined Network)is a new type of network architecture.Its Southward communication protocol,OpenFlow,enables flexible control of network traffic by separating the control plane of the network device from the data plane,and makes the network more intelligent.With the rapid development of SDN,more and more cases have been applied to actual scenarios.Due to factors such as security,efficiency and resource waste avoidance,smart supervision schemes of SDN networks are also needed more and more.Therefore,it is of great practical significance to construct traffic monitoring in SDN networks.Firstly,based on the SPE and EWMA algorithms,this paper designs a multi-functional traffic monitoring algorithm L-EWMA which can be applied to real SDN network scenarios.The algorithm realizes real-time detection algorithm of network anomaly and according to the characteristics of abnormal traffic scenarios(Alpha,DDoS and Node Loss)Automatically determine the type of abnormal traffic.Compared with other SDN anomaly traffic detection algorithms,L-EWMA increases the positioning and traffic prediction of abnormal traffic.Experiments show that L-EWMA can accurately analyze abnormal scenarios and locate and predict traffic changes.Secondly,the algorithm is applied to the real multi-domain network constructed by the ONOS of SDN controller and OVS of the switch,and the design application collects network traffic in real time.And through the L-EWMA algorithm to monitor network traffic changes.Comparing the monitoring performance of different abnormal scenarios in real network environment and comparing the monitoring performance of the algorithm in single-domain and multi-domain network environment in this paper.Finally,to facilitate the monitoring personnel to manage the network,this paper develops the corresponding front-end management page to present the current network environment in real time through the network topology diagram and traffic line chart.The corresponding alarm and prompt information appears on the page when the abnormal condition occurs to show the current network status.Based on the traditional network monitoring method and SDN unique network architecture,this paper improves the monitoring method under the multi-domain SDN network environment and designs a complete system that can be used in practice,which has certain theoretical and practical significance.