Dynamic Adaptive Streaming over HTTP (DASH) is also referred to as Over The Top (OTT). OTT examples include: Netflix, Redbox, HULU, and YouTube. Other video clients besides DASH are Silverlight, HLS, and Flash.

Network emulation is required to test the DASH Client’s rate adaption capability by throttling the network bandwidth down then back up over time.

Network simulation testing helps the user to understand how network conditions, weighting, priority, traffic shaping, different clients and different DASH services affect DASH performance, QoE and ability to deliver DASH services.