Patrick Verkaik

Detailed Diagnosis in Enterprise Networks

By: 
Srikanth Kandula, Ratul Mahajan, Patrick Verkaik, Sharad Agarwal, Jitendra Padhye, and Paramvir Bahl
Appears in: 
CCR October 2009

By studying trouble tickets from small enterprise networks, we conclude that their operators need detailed fault diagnosis. That is, the diagnostic system should be able to diagnose not only generic faults (e.g., performance-related) but also application specific faults (e.g., error codes). It should also identify culprits at a fine granularity such as a process or firewall configuration. We build a system, called NetMedic, that enables detailed diagnosis by harnessing the rich information exposed by modern operating systems and applications.

Automating Cross-Layer Diagnosis of Enterprise Wireless Networks

By: 
Yu-Chung Cheng, Mikhail Afanasyev, Patrick Verkaik, Péter Benkö, Jennifer Chiang, Alex C. Snoeren, Stefan Savage, and Geoffrey M. Voelker
Appears in: 
CCR October 2007

Modern enterprise networks are of sufficient complexity that even simple faults can be difficult to diagnose — let alone transient outages or service degradations. Nowhere is this problem more apparent than in the 802.11-based wireless access networks now ubiquitous in the enterprise. In addition to the myriad complexities of the wired network, wireless networks face the additional challenges of shared spectrum, user mobility and authentication management.

Syndicate content