Nec Laboratories America, Inc.

Nec Corporation

Ahsan Arefin

Guofei Jiang

Cristian Lumezanu

Yueping Zhang

Vishal Kumar Singh

Vishal Singh

A debugging system used for a data center in a network is disclosed. The system includes a monitoring engine to monitor network traffic by collecting traffic information from a network controller, a modeling engine to model an application signature, an infrastructure signature, and a task signature using a monitored log, a debugging engine to detect a change in the application signature between a working status and a non-working status using a reference log and a problem log, and to validate the change using the task signature, and a providing unit to provide toubleshooting information, wherein an unknown change in the application signature is correlated to a known problem class by considering a dependency to a change in the infrastructure signature. Other methods and systems also are disclosed.

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Champaign, IL, United States of America

Ahsan Arefin