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www.caida.org > publications : papers : 2009 : gt_architecture
GT: picking up the truth from the ground for Internet traffic
F. Gringoli, L. Salgarelli, M. Dusi, N. Cascarano, F. Risso, and k. claffy, "GT: picking up the truth from the ground for Internet traffic", ACM SIGCOMM Computer Communication Review (CCR), Oct 2009.
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GT: picking up the truth from the ground for Internet traffic

Francesco Gringoli3
Luca Salgarelli3
Maurizio Dusi3
Niccolo Cascarano2
Fulvio Risso2
kc claffy1
1

CAIDA, San Diego Supercomputer Center, University of California San Diego

2

Politecnico di Torino

3

Universita di Brescia

Much of Internet traffic modeling, firewall, and intrusion detection research requires traces where some ground truth regarding application and protocol is associated with each packet or flow. This paper presents the design, development and experimental evaluation of gt, an open source software toolset for associating ground truth information with Internet traffic traces. By probing the monitored host's kernel to obtain information on active Internet sessions, gt gathers ground truth at the application level. Preliminary experimental results show that gt's effectiveness comes at little cost in terms of overhead on the hosting machines. Furthermore, when coupled with other packet inspection mechanisms, gt can derive ground truth not only in terms of applications (e.g., e-mail), but also in terms of protocols (e.g., SMTP vs. POP3).

Keywords: measurement methodology, passive data analysis, software/tools
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