NetSim is an end-to-end, full stack, packet level network simulator and emulator. It provides network engineers with a technology development environment for protocol modeling, network R&D and military communications. The behavior and performance of new protocols and devices can be investigated in an virtual network within NetSim at significantly lower cost and in less time than with hardware prototypes.
NetSim Pro version is suited for commercial (enterprise / defence) customers while NetSim standard and NetSim Academic is targeted at education customers. The version comparison table shows the features available in the different versions.