Online end-to-end quality of service monitoring for service level agreement management

Authors:
Xiaoyuan Ta;Guoqiang Mao
Affiliations:
School of Electrical and Information Engineering, The University of Sydney, Sydney, NSW 2006, Australia;School of Electrical and Information Engineering, The University of Sydney, Sydney, NSW 2006, Australia
Venue:
International Journal of Communication Systems
Year:
2008

Citing 0
Cited 2

Packet doppler: network monitoring using packet shift detection

CoNEXT '08 Proceedings of the 2008 ACM CoNEXT Conference
Monitoring performance-related QoS properties in service-oriented systems: a pattern-based architectural decision model

Proceedings of the 16th European Conference on Pattern Languages of Programs

Quantified Score

Hi-index	0.00

Visualization

Abstract

A major challenge in network and service level agreement (SLA) management is to provide Quality of Service (QoS) demanded by heterogeneous network applications. Online QoS monitoring plays an important role in the process by providing objective measurements that can be used for improving network design, troubleshooting and management. Online QoS monitoring becomes increasingly difficult and complex due to the rapid expansion of the Internet and the dramatic increase in the speed of network. Sampling techniques have been explored as a means to reduce the difficulty and complexity of measurement. In this paper, we investigate several major sampling techniques, i.e. systematic sampling, simple random sampling and stratified sampling. Performance analysis is conducted on these techniques. It is shown that stratified sampling with optimum allocation has the best performance. However, stratified sampling with optimum allocation requires additional statistics usually not available for real-time applications. An adaptive stratified sampling algorithm is proposed to solve the problem. Both theoretical analysis and simulation show that the proposed adaptive stratified sampling algorithm outperforms other sampling techniques and achieves a performance comparable to stratified sampling with optimum allocation. A QoS monitoring software using the aforementioned sampling techniques is designed and tested in various real networks. Copyright © 2007 John Wiley & Sons, Ltd.