NDLI: Minimizing Probing Cost and Achieving Identifiability in Network Link Monitoring

Content Provider	IEEE Xplore Digital Library
Author	Qiang Zheng Guohong Cao
Copyright Year	2010
Abstract	Continuously monitoring the link performance is important to network diagnosis. Recently, active probes sent between end systems are widely used to monitor the link performance. In this paper, we address the problem of minimizing the probing cost and achieving identifiability in link monitoring. Given a set of links to monitor, our objective is to select as few probing paths as possible to cover all of them, and the selected probing paths can uniquely identify all identifiable links being monitored. We propose an algorithm based on the linear system model to find out all sets of probing paths that can uniquely identify an identifiable link. We extend the bipartite model to reflect the relation between a set of probing paths and the link that can be uniquely identified. Through the extended bipartite model, our optimization problem is transformed into the classic set cover problem, which is NP-hard. Therefore, we propose a heuristic based algorithm to greedily select the probing paths. Our method eliminates two types of redundant probing paths, i.e., those that can be replaced by others and those that cannot be used to achieving identifiability. Simulations based on real network topologies show that our approach can achieve identifiability with very low probing cost. Compared with prior work, our method is more general and has better performance.
Starting Page	675
Ending Page	684
File Size	525242
Page Count	10
File Format	PDF
ISBN	9781424472611
ISSN	10636927
e-ISBN	9781424472628
DOI	10.1109/ICDCS.2010.18
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-21
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Costs Probes Computerized monitoring Performance loss Distributed computing Computer science Electronic mail Linear systems Heuristic algorithms Network topology
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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