Internet Measurement

A Traffic Matrix – a matrix giving the traffic volumes between origin and destination in a network – has tremendously potential utility for IP network capacity planning and management.

SAIL, short for Statistically Accurate Internet Loss Measurements, is a method for rigorous statistical analysis of packet-loss measurements. It uses algorithms from Hidden Semi-Markov Models to estimate the parameters of the underlying loss process from measurement traces, then computes the loss rate and its variance.

The method is designed to be light-weight: the main algorithms run in linear time in the number of measurement samples. This page collects the SAIL MATLAB implementation, usage notes, sample-data information, and related papers.