Emulation VS. Simulation

Overview

Testing with realistic application emulation is about emulating network traffic that contains realistic traffic patterns and content. This generates results that are far more accurate than using simulation or stateless Layer 2-3 blasting. Being able to analyze the results generated by “real”network testing is essential for providing guaranteed Quality-of-Service (QoS), and high degrees of Quality-of-Experience (QoE).

There are various solutions for testing stateful Layer 4-7traffic that utilize “real-world traffic”when evaluating the performance of the device or system under test (DUT/SUT). The concepts are similar. But to ensure test results that truly reflect the “what-if”scenarios and results in the real world, you need to select the right test solution.

Realistic application emulation not only demands true stateful application traffic on top of TCP/IP, but also maintaining the correlation between connections in the application, thereby bringing realism into the tests for networks to be deployed in real world and services to be provisioned for real customers.

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