For many customers, however, the main reason they adopt the approach is to get more applications through their QA/Performance labs. Simulation tools like OPNET require specialists and weeks of modeling per application. If you’re relocating a Data Center or virtualizing your servers the OPNET approach simply can’t support the scale of testing required. A well designed WAN emulator integrates into your lab or Data Center easily, works with existing load tools & scripts, and can emulate the relocation of a Data Center or Remote Office in a matter of minutes within your test lab.