In order to provide QoS support for IP networks, a software application must integrate all (or most of) the measurement and processing tools related with the experiments into a single environment. This application provides an integrated graphical interface for a set of tools that allows the measurement of QoS parameters over IPv4 and IPv6 networks. Network Performance Meter (NetMeter) is an Tcl/Tk application which tries to solve these tasks in a flexible and modular way.
NetMeter was developed at UPC by the CBA (Broadband Communications Research Group) and is licensed under GPL. So you are allowed to modify the source code at your will.
Traffic Generator: This plugin can generate UDP traffic in a network and can pick up the measurements to calculate the OWD (One Way Delay) between two synchronized points
Throughput Generator: This plugin is focussed on overloading the network with TCP or UDP packets in order to calculate the network throughput.
Statistics Generator: This is used for extracting statistical properties of the tests, compute all the basic QoS metrics and show the results in XML, HTML or other formats.
Graphic Generator: This plugin is able to open and plot all the basic graphic representation of the most common statistics required on network measurements
There is another project that is also called NetMeter. Is important to notice that are separate and independent projects with diferent goals. Being this one for *NIX Operating Systems and the other one for Windows.