NetInfer: End-to-end Inference of Internet Performance Problems


NetInfer is a suite of tools for inference and diagnosis of Internet performance problems. It was developed as a part of the Ph.D. dissertation of Partha Kanuparthy, advised by Constantine Dovrolis.

The NetInfer Ph.D. dissertation: End-to-end Inference of Internet Performance Problems. (2012)

Research

A clickable map showing the different components of NetInfer:


WLAN-Probe ShaperProbe DiffProbe Spectral Probing DiffProbe DiffProbe
An end-to-end Internet path.


DiffProbe: Detecting ISP Traffic Discrimination

Supported by Google Inc. and the National Science Foundation award 0347374.

DiffProbe: Detecting ISP Service Discrimination,
Partha Kanuparthy and Constantine Dovrolis
IEEE Conference on Computer Communications (INFOCOM) 2010, San Diego, CA, USA.
(Visit the DiffProbe page.)

DiffProbe won the Best Research Award at the FCC Open Internet Apps Challenge.

DiffProbe was presented at the CAIDA AIMS Workshop 2010.

Media: Some related articles:
"Google Launches M-Lab Measurement Tools," NetworkWorld, Jan. 2009.
"Google and Friends Release Net Neutrality Measuring Tools," Slashdot, Jan. 2009.
"Contest Shines Light on Broadband Providers' Tactics," PCWorld, Aug. 2011.
"FCC Contest Stimulates Development of Apps to Help Keep ISPs Honest," O'Reilly Media, Aug. 2011.

ShaperProbe: Detecting ISP Traffic Shaping

Supported by Google Inc.

Please visit the ShaperProbe page. Hosted at Google MLab.

ShaperProbe: End-to-end Detection of ISP Traffic Shaping using Active Methods,
Partha Kanuparthy and Constantine Dovrolis
ACM SIGCOMM/USENIX/SIGMETRICS Conference on Internet Measurement (IMC) 2011, Berlin, Germany.

End-to-end Detection of ISP Traffic Shaping using Active and Passive Methods,
Partha Kanuparthy and Constantine Dovrolis
Extended Technical Report, May 2011.

ShaperProbe won the Best Research Award at the FCC Open Internet Apps Challenge.

ShaperProbe was presented at the CAIDA AIMS Workshop 2011 and at the Internet2 Joint Techs 2010.

Media: Appeared, amongst others, in:
"New 'ShaperProbe' tool detects ISP traffic shaping," Ars Technica, May 2011.
"Georgia Tech's ShaperProbe Detects ISP Traffic Manipulation," Slashdot, May 2011.
"Tool reveals ISP traffic-shaping," boing boing, May 2011.
"M-Lab Collaboration with ShaperProbe Shows That More Must Be Done to Help Consumers," New America Foundation, June 2011.
"PowerBoost: A Comcast Innovation for High-Speed Internet Users," Comcast Blog, August 2011.

Spectral Probing: An Application to Topology Inference

Supported by Telchemy Inc. and the National Science Foundation award ANIR-0347374.

Spectral Probing, Crosstalk and Frequency Multiplexing in Internet Paths,
Partha Kanuparthy, Constantine Dovrolis, and Mostafa Ammar
ACM SIGCOMM/USENIX/SIGMETRICS Conference on Internet Measurement (IMC) 2008, Vouliagmeni, Greece.

Spectral Probing was presented at the DIMACS/DyDAn Workshop on Internet Tomography 2008.

WLAN-Probe: Understanding 802.11 Networks using Active Probing

Supported by the U.S. Department of Energy grant DE-FG02-10ER26021.

What can user-level active probing tell us about wireless links?

Can User-Level Probing Detect and Diagnose Common Home-WLAN Pathologies?,
Partha Kanuparthy, Constantine Dovrolis, Konstantina Papagiannaki, Srinivasan Seshan, and Peter Steenkiste
ACM SIGCOMM Computer Communications Review (CCR), Vol. 42, No. 1, January 2012.

Pythia: Detection and Diagnosis of Wide-Area Pathologies

Supported by the U.S. Department of Energy grant DE-FG02-10ER26021.

Pythia: Distributed Diagnosis of Wide-area Performance Problems,
Partha Kanuparthy and Constantine Dovrolis
Tech Report, 2012 (available on request).

The live system (currently being deployed in ESnet and Internet2): pythia.cc.gatech.edu
An introduction to the Pythia project was presented at the CAIDA AIMS Workshop 2011 and the ESCC 2011.

Understanding DNS-based Traffic Engineering

Supported by Cisco Systems.

Can we improve accuracy of DNS-based traffic engineering using online traffic measurements?

DNS-based Ingress Load Balancing: An Experimental Evaluation,
Partha Kanuparthy, Warren Matthews, Constantine Dovrolis
CoRR abs/1205.0820, 2012.




ShaperProbe stats (as of May 2011)
Download access capacity (median Mbps) across the globe.