The invention is a tool that accurately predicts the performance of each different priority or service level on a PON with multiple different service types and multiple users. Delays and bit rates are computed accounting for all packet, protocol, propagation, and scheduling overhead. The performance and delays of all services are further verified by running a real-time simulation that identically mimics the operation of an actual PON, resulting in very close prediction of the performances of different services before the services are actually used or tested for use by the subscribers. The invention allows the service provider to sell the maximum number of services possible, while still ensuring that they can all function acceptably. The tool may be used to model and predict behavior of various PON.
