DocumentCode :
2670636
Title :
A Framework for Multi-Objective SLA Compliance Monitoring
Author :
Sommers, Joel ; Barford, Paul ; Duffield, Nick ; Ron, Amos
Author_Institution :
Univ. of Wisconsin-Madison, Madison
fYear :
2007
fDate :
6-12 May 2007
Firstpage :
2446
Lastpage :
2450
Abstract :
Service level agreements (SLAs) specify performance guarantees made by service providers, typically in terms of packet loss, delay, delay variation, and network availability. While many tools have been developed to measure individual aspects of network performance, there has been little work to directly address the issue of SLA compliance monitoring in an operational setting where accuracy, parsimony, and other related issues are of vital importance. This paper takes the following steps toward addressing this problem: (1) we introduce an architectural framework for integrating multiple discrete-time active measurement algorithms, an architecture that we call multi-objective monitoring; and (2) we introduce a new active measurement methodology to monitor the packet loss rate along a network path for determining compliance with specified performance targets which significantly improves accuracy over existing techniques. We present a prototype implementation of our monitoring framework, and demonstrate how a unified probe stream can consume lower overall bandwidth than if individual streams are used to measure different path properties. We demonstrate the accuracy and convergence properties of our new loss rate monitoring methodology in a controlled laboratory environment using a range of background traffic scenarios and examine its accuracy improvements over existing techniques.
Keywords :
IP networks; computer network management; monitoring; telecommunication traffic; IP networks; background traffic scenarios; convergence properties; delay variation; discrete-time active measurement algorithms; loss rate monitoring methodology; multiobjective SLA compliance monitoring; network availability; packet loss; service level agreements; service providers; Availability; Bandwidth; Communications Society; Convergence; Loss measurement; Mechanical factors; Monitoring; Performance loss; Probes; Prototypes;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
INFOCOM 2007. 26th IEEE International Conference on Computer Communications. IEEE
Conference_Location :
Anchorage, AK
ISSN :
0743-166X
Print_ISBN :
1-4244-1047-9
Type :
conf
DOI :
10.1109/INFCOM.2007.298
Filename :
4215880
Link To Document :
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