Evaluation of architectures for QoS analysis of applications in Internet environment

摘要

Advanced architectures for performance analysis of QoS enabled applications and services need to integrate different components which are not only concerned with the end-to-end Qos measurement and monitoring, but also with network path performance analysis and QOS modeling. Additionally, the performance analysis for QOS enabled applications and services requires the integration of further components for topology and autonomous system discovery as well as QOS/SLA verification dependent on the Internet environment (intra- and inter domain). To illustrate novel concepts for integrated performance analysis in an intra- and inter-domain environment, the Distributed Measurement Architecture (DMA) together with its component -CMToolset - developed in the framework of the European 1ST project AQUILA [1] is presented. CMToolset is used in AQUILA for end-to-end QoS measurement and verification considering traffic aggregation, multiplexing and resource reservation in Diffserv/MPLS environment. Usage scenarios for QOS analysis based on practical experiences with CMToolset are addressed. The novel concepts of Inter-domain Distributed Measurement Architecture (IDMA) based on the enhancements of AQUILA DMA in the framework of INTERMON project [21] are discussed. AQUILA DMA is compared with current state of the art of integrated toolkits for performance analysis of QoS enabled application and services.