AT&T Intellectual Property I, LP

Wisconsin Alumni Research Foundation

Amos Ron

Paul Robert Barford

Nicholas G Duffield

Joel Sommers

David John Plonka

Jeffery Thomas Kline

Sangnam Nam

A network anomaly detector evaluates two complementary measurements of network statistics, a time variation and correlation among those statistics, to provide an extremely robust detection of network anomalies. In one embodiment, the variability and correspondence are compared against historically derived thresholds to provide for a system that accommodates to local network conditions and evolving network qualities.

Method and apparatus for network anomaly detection

A method and apparatus for detecting and localizing an anomaly for a network are disclosed. For example, the method sends a first set of probe packets on at least one path of the network, and detects a performance anomaly on a first path of the at least one path. The method then identifies at least one link on the first path that is responsible for the performance anomaly by applying a second set of probe packets.

Method and apparatus for detecting and localizing an anomaly for a network

A method and an apparatus for providing a measurement of performance for a network are disclosed. For example, the method sends a plurality of multi-objective probes on a path, and receives one or more of said plurality of multi-objective probes for the path. The method then determines a plurality of performance measurements.

Method and apparatus for providing a measurement of performance for a network

Growing community of inventors

Madison, WI, United States of America

Amos Ron