In computer and communication research, Network Simulator is a procedure where programs can change the behavior by the mode of calculation of interactions between the hosts by using some mathematical relations by observing the activities through production network. Actually, network simulator is type of computer software that can duplicate and predict the network behavior and tries the corrective measures with the help of production network. As the network activities have become so much complicated, it is very difficult to provide correct form of network. Some series of network simulator may be defined as discrete network simulator like MIMIC Simulator Suite. These is all network simulator of discrete event type. These are primarily used in teaching and research. Some simulating network can record the network for production and real devices in world and can multiply in many times.
Several types of network simulator
Some companies offer and provide tools for simulating storage devices, networking and server. These may be termed as Network Simulator. So many packages are available for simulating purpose like IPFIX, Cisco IOS, IPMI, Web, and Server Simulator and so on. These packages are providing support to the system for simulating the network. The network vendors and many enterprises around the world use these packages for testing, development, disaster simulations and operator training. The network simulator predicts and assesses the performance of the network and tries to rectify the mode with some application procedures. For networking research, one discrete event simulator MIMIC is targeted. This simulator provides sufficient support to the TCP routing.
Some network simulators are driven by GUI and others are driven by CLI. There are various types of simulators: SNMP Simulator, NetFlow Simulator, Web Simulator, IOS Simulator. All the solutions may be applied for testing, for verification of cloud infrastructure, testing of server applications. The solutions are valuable for simulating for thousands of servers. Network infrastructure can be replicated, Cisco certification is possible, scalability may be increased, and evaluation of management apps is possible with the help of solutions.
It is very complicated task to simulate network. As, if the congestion is made very high, the variance also will be high and estimation will be tough for assessing the average occupancy. Actually, simulator allows the apps to build for rapid prototype during the process of development and will behave like a real production network.
So, from the discussions above, it is clear that network simulator is used to boost the network services by recording the activities of the devices and after assessing the same, simulators used are modified based on calculations. So, on assessing the features simulator can rectify he features in networking devices and can boost up thousands of devices.