A flow-level extension to OMNeT++ for long simulations of large networks

This letter presents a Flow-Level Extension to OMNeT++ (FLEO) that allows a discrete event simulator to operate on flows of traffic, and so simulate larger networks for longer periods of time for a given set of computation and memory resources compared with packet-based simulation. FLEO simulations of link utilization are accurate to within 0.2% of a packet-based simulation, yet run 30 to 90 times faster than packet-based simulation. These characteristics make it suitable for the simulation of streaming media, which comprises the majority of data usage today, as well as investigation of traffic engineering within a network, for example, using software-defined networking