What is a network emulator and simulator?

A network emulator is a tool that mimics the behavior of a real network, allowing users to test applications and protocols in a controlled environment by replicating network conditions such as latency, bandwidth, and packet loss. In contrast, a network simulator creates a virtual model of a network without actual data transmission, enabling the study of network behavior and configuration without needing physical resources. Both tools are essential for network design, testing, and optimization, but they serve different purposes depending on the level of realism required.