Network emulation is the process of introducing a device into a test network (usually in a lab environment) that modifies the packet flow to mimic the behavior of a production or live network, such as a LAN or WAN. The primary purpose of network emulation is to provide an environment where users can plug-in devices, applications, products, and/or services under test to test devices’ performance, stability, or functionality in real network scenarios. Network emulation differs from network simulation in that it uses virtual traffic models, network models, channels, and protocols. At this point, we understand the difference between network modeling and emulation; on the one hand, the creation of a virtual network model, and on the other hand, the use of a device to reproduce network conditions. A simulator can perform abstract tasks to demonstrate the behavior of a network and its components, and an emulator can copy the behavior of a network to replace it functionally. On the other hand,...
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