ESTIMATION OF TOKEN BUCKET PARAMETERS FOR VIDEOCONFERENCING SYSTEMS IN CORPORATE NETWORKS

Abstract

In this paper we examine bandwidth requirements of videoconferencing systems in corporate networks. Based on extensive measurements with different H.323 applications under various conditions, important statistical traffic properties are determined. In particular, we estimate token bucket parameters and calculate effective bit rates according to the Guaranteed Service approach specified by the IETF in the Integrated Services Architecture. Finally, we evaluate the theoretical results through simulations using the obtained traces as traffic input.