Active Probing Approach for Fault Localization in Computer Networks

Active probing is an active network monitoring technique that has potential for developing effective solutions for fault localization. In this paper we use active probing to present an approach to develop tools for performing fault localization. We discuss various design issues involved and propose architecture for building such a tool. We describe an algorithm for probe set selection for problem detection and present simulation results to show its effectiveness. We demonstrate through analysis and experiments that active probing has the potential to greatly reduce the probe traffic and the fault diagnosis time.