OpenDaylight - OpenDaylight is an open platform for network programmability to enable SDN and create a solid...
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Ubiquiti UniFi - UniFi is the SDN platform for Ubiquitis UniFi series
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Beehive SDN Controller - A distributed SDN controller with OpenFlow support
Prometheus - An open-source systems monitoring and alerting toolkit.