End-to-end performance analysis with traffic aggregation

The provisioning of end-to-end services in the presence of traffic aggregat ion is evaluated in the framework of the Differentiated Services (diffserv) QoS architecture. The effect of stream multiplexing on delay and jitter-se nsitive traffic is analyzed through an experimental approach. Aggregation i s evaluated in three different scenarios: with different aggregate traffic loads, with a variable number of flows multiplexed in the same class, and w ith different packet sizes. Two different scheduling algorithms are conside red: Priority Queuing (PQ) and Weighted Fair Queuing (WFQ). (C) 2000 Elsevi er Science B.V. All rights reserved.