Monitoring and Traffic Optimization Using Vertical Controller in Multi-domain SDN

Abstract

Nowadays Internet service providers and enterprise networks deploy real-time services, such as voice and video that is why network monitoring is becoming more and more important. To measure network performance an up to date view of network is essential. For network monitoring, software-defined network provides a unified solution which is used to measure delay, packet loss, and utilization. Currently, there is not a capable single solution by which all monitoring parameters can be measured in mentioned matrices; it can be done by a collection of different methods. But the drawback is different methods need separate infrastructure which requires additional installations and expenses. This paper explores how monitoring could be achieved in an OpenFlow enabled network. In this research work, the real-time monitoring of SDN controller infrastructure is used and it provides information and key performance indicators for network. It helps us to create performance model for controller as a function of underlying network parameters.