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Network emulation is an important, but often overlooked aspect of IT management. Too often, major changes to an application, network or infrastructure component are implemented without a clear idea of the short or long-term impact to application performance, user experience or overall network health. Add to this the increasing adoption of modern IT initiatives including cloud, virtualization and mobile deployments along with datacenter consolidation and an explosion of data, and the importance of network emulation technologies becomes even more critical.