Abstract Providing reliable multimedia services requires considerable effort with currently available hardware and software.
Major difficulties are to cope with the changing quality of service parameters.
Network as well as the operating system can handle these requirements and share resources optimal among several active multimedia applications only if proper information about traffic characteristics are available. The traffic characteristics also helps to improve application performance in terms of the execution time and required resources. Therefore, monitoring traffic is an essential step to support performance management in any network. JAM allows the user to configure a multimedia conference and to collect performance statistics for different protocol layers and provides a graphical user interface for on-line visualization of statistics gained from a running multimedia session.