User-managed QoS: Model and validation

Corporate networks are moving towards an ldquoall-IPrdquo architecture as even performance-critical applications such as telephony are migrating to an IP base. Still, end-to-end Quality of Service (QoS) issues remain to be resolved to provide a seamless converged network that will satisfy the combined needs of all applications. This problem has been the subject of much research, still without conclusive results. We present in this paper an architecture to address this issue from the userspsila perspective and control. We also describe how this architecture was validated and the results we have derived from our experiments. We show that it is possible for users to control their quality of service using simple, easily scalable means and present some typical profiles which have emerged from our experiences. This work also gives us hints on the model ling of user behavior facing budgetary constraints.