End-to-end performance analysis with traffic aggregation

Abstract The provisioning of end-to-end services in the presence of traffic aggregation is evaluated in the framework of the Differentiated Services (diffserv) QoS architecture. The effect of stream multiplexing on delay and jitter-sensitive traffic is analyzed through an experimental approach. Aggregation is evaluated in three different scenarios: with different aggregate traffic loads, with a variable number of flows multiplexed in the same class, and with different packet sizes. Two different scheduling algorithms are considered: Priority Queuing (PQ) and Weighted Fair Queuing (WFQ).