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Author Dischinger, Marcel ♦ Marcon, Massimiliano ♦ Guha, Saikat ♦ Gummadi, Krishna P. ♦ Mahajan, Ratul ♦ Saroiu, Stefan
Source CiteSeerX
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Enabling End User ♦ Specific Application ♦ Use-ful Information ♦ Unlimited Service ♦ Design Choice ♦ Ordi-nary Internet User ♦ Network Transparency ♦ Generate Result ♦ Many User ♦ Traffic Management Policy ♦ Isps Worldwide ♦ Network Neutral-ity ♦ Governmental Regulatory Agen-cies ♦ Low Barrier ♦ Isps Reputation ♦ Timely Man-ner ♦ Legal Obligation ♦ Residential Isps ♦ Key Challenge ♦ Differentiation Policy ♦ Avoid False Accusation ♦ Detect Traffic Differentiation ♦ Various Dif-ferentiation Policy ♦ Isp-wide Deployment
Description in Proc. of USENIX Symposium on Networked Systems Design and Implementation
Holding residential ISPs to their contractual or legal obligations of “unlimited service ” or “network neutral-ity ” is hard because their traffic management policies are opaque to end users and governmental regulatory agen-cies. We have built and deployed Glasnost, a system that improves network transparency by enabling ordi-nary Internet users to detect whether their ISPs are dif-ferentiating between flows of specific applications. We identify three key challenges in designing such a sys-tem: (a) to attract many users, the system must have low barrier of use and generate results in a timely man-ner, (b) the results must be robust to measurement noise and avoid false accusations of differentiation, which can adversely affect ISPs ’ reputation and business, (c) the system must include mechanisms to keep it up-to-date with the continuously changing differentiation policies of ISPs worldwide. We describe how Glasnost addresses each of these challenges. Glasnost has been operational for over a year. More than 350,000 users from over 5,800 ISPs worldwide have used Glasnost to detect dif-ferentiation, validating many of our design choices. We show how data from individual Glasnost users can be aggregated to provide regulators and monitors with use-ful information on ISP-wide deployment of various dif-ferentiation policies. 1
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 2010-01-01