The product accepts up to 48 input streams and replicates them exactly with different header information to make thousands of unique streams. Load and stress test network and access equipment with real video not synthetic video traffic. Eliminates the need for large number of servers or encoders to generator high capacity video. Replicated streams are treated just like streams from real encoders and servers. Many switches and routers are video aware and need to be tested with real video traffic. One unique feature of the replicator is that streams can be added and deleted during emulation. This dynamic capability provides a way to simulate different applications such as ad insertions and defense targets.