EIA/TIA-921-C:2016

This revision to the Standard defines managed IPTV, IPTV and VoIP stream for Well Managed, Partially Managed and Un-Managed Network conditions. It also defines the remaining residual unmanaged bandwidth (Internet Services) which are typically used for TCP applications. The main difference between this revision and the previous revision is that this version is a Layer 4 (TCP) aware network model that can be used to evaluate TCP traffic. This revision of the Recommendation utilizes the publicly available ns-3 network simulator which incorporates layer 4 TCP models. It allows more accurate characterization of bandwidth and delay for networks that carry TCP traffic because congestion causes TCP streams to back off and use less network bandwidth. The model is limited in that it is based on a single (Cubic) TCP flow. Different TCP stacks have different behaviors. however, the macroscopic behavior of TCP flows should be similar. This Standard1 is broadly applicable to the evaluation of any equipment that terminates or routes traffic using the Internet Protocol. This Standard can also be used to evaluate media streams or other protocols carried over IP networks.