Cisco Packet Tracer - Download Cisco Packet Tracer, an innovative network simulation and visualization tool used by Cisco Networking Academy students and instructors.
OpenDaylight - OpenDaylight is an open platform for network programmability to enable SDN and create a solid...
GNS3 - GNS3 is a graphical network simulator that allows simulation of complex networks.
Ubiquiti UniFi - UniFi is the SDN platform for Ubiquitis UniFi series
Paessler Multi Server Simulator - Paessler Multi Server Simulator is inexpensive and robust software that helps you power massive-scale testing.
Beehive SDN Controller - A distributed SDN controller with OpenFlow support