ns-3 - a discrete-event network simulator for internet systems
EMSO simulator - EMSO simulator is an equation-oriented process simulator with a graphical interface for modeling...
Mininet - Mininet is a robust and inexpensive Instant Virtual Network designed to function on standard PCs like Laptops and Desktops.
Insight Maker - Explore powerful simulation algorithms for System Dynamics and Agent Based Modeling in a truly...
Cisco Packet Tracer - Download Cisco Packet Tracer, an innovative network simulation and visualization tool used by Cisco Networking Academy students and instructors.
Altair Activate - Altair Activate is an open & flexible tool for rapidly modeling and simulating products as multi-disciplinary systems in the form of 1D models (expressed as signal-based or physical block diagrams), optionally coupled to 3D models.