SCSCDaylight: Network Monitoring Tools for Software-Defined Networks Based on Opendaylight

Monitoring is a foundation for network management. Timely and accurate network statistics is essential to critical network management task, such as traffic engineering, service-level agreement (SLA), anomaly detection and troubleshooting. However, in traditional networks, monitoring is difficult to achieve due to the lack of support by the equipment. Recently, software defined network (SDN) separates the network control plane from the data forwarding plane, and manages the network by the centralized controller which can access the underlying device data flexibly. In this paper, a Software-Defined Networks monitoring tools-SCSCDaylight is implemented based on opendaylight, which is an open source SDN controller platform. The tools support network topology partition, multiple controller collaboration, two-way link speed and packet loss rate measurement. And the network simulation is used to evaluate this system. The experimental results show that the tools can accurately implement the measurement of link speed and packet loss rate.