5/29/2023 0 Comments Opnet modeler 14.0 license![]() ![]() Discrete event simulation (DES) – the running scenario is represented by the ordered sequence of well-defined events.Determinism – the simulation of the same scenario will give exactly the same results after each run (same sequence of events, same phenomena and same bugs).There is a variety of simulation platforms available, some of them open source and some of them commercial: OPNET, QualNet, OMNET++, NS-3 …Ĭommon characteristics of all simulation platforms are: Generally, a simulation is the only method that allows continuous testing and debugging of network comprised of hundreds and thousands of communication elements (devices, hosts, routers, switches, servers, so on), since a standard lab won’t do, and field tests are expensive, difficult to operate and non-deterministic. One can create, run and analyze any desired communication scenario. It enables predicting network behavior and network performance. Network simulation is designed for characterizing, creating and validating the communication solutions, computer networks and distributed or parallel systems. Wikipedia describes network simulation as “a technique where a program models the behavior of a network by calculating the interaction between the different network entities (hosts/routers, data links, packets, etc.) using mathematical formulas.”īut beyond the basic description, how can you use network simulation to predict and check your network systems?
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