GNS3 - GNS3 is a graphical network simulator that allows simulation of complex networks.
Cisco Packet Tracer - Download Cisco Packet Tracer, an innovative network simulation and visualization tool used by Cisco Networking Academy students and instructors.
Aruba Wireless - Aruba is a Hewlett Packard Enterprise company offering ultra-fast and highly secure Wireless LAN with support for Wi-Fi 6, enabling seamless connectivity through multiple Wi-Fi access points and controllers.
Paessler Multi Server Simulator - Paessler Multi Server Simulator is inexpensive and robust software that helps you power massive-scale testing.
Winncom - Winncom is a reliable platform that is surfacing all innovative and advanced networking solutions with a complete suite of tools.
FlexSim - Simulation software to model, simulate, predict, and visualize systems in manufacturing, material handling, healthcare, warehousing, mining, etc.