On the performance of differentiated services for IP internetworks

摘要

Traffic prioritization is an effective, yet relatively simple, tool for providing differentiated services. This paper investigates the performance of different traffic types for IP internetworks with traffic prioritization under various traffic patterns via numerical analysis. the following seven traffic types were considered: Network Control, 'Voice", 'Video', Controlled Load, Excellent Effort, Best Effort and Background, as suggested in IEEE P802.1D. Traffic patterns were appropriately selected to cover a wide range of traffic variations. This paper demonstrated how the performance of individual traffic types is affected by the distribution of server utilization of all types. The results obtained in this paper could also be helpful to network administrators in configuring the "bandwidth reservation" for IP internetworks.