Tag Archives: outage detection

new website for browsing Internet outages

We are happy to announce a new website at https://ant.isi.edu/outage/world/ that supports our Internet outage data collected from Trinocular. Our website supports browsing more than two years of outage data, organized by geography and time.  The map is a google-maps-style … Continue reading

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new project LACANIC

We are happy to announce a new project, LACANIC, the Los Angeles/Colorado Application and Network Information Community. The LACANIC project’s goal is to develop datasets to improve Internet security and readability. We distribute these datasets through the DHS IMPACT program. As part of … Continue reading

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Evaluation of Hurricane Harvey’s Effects on the Internet’s Edge

On August 25, 2017 Hurricane Harvey made landfall in south Texas, causing widespread property damage, displacing more than 30,000 people, and costing more than 45 lives (as of 2017-09-01). We sympathize with those were hurt by this disaster, and hope … Continue reading

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new talk “Digging in to Ground Truth in Network Measurements” at the TMA PhD School 2017

John Heidemann gave the talk “Digging in to Ground Truth in Network Measurements” at the TMA PhD School 2017 in Dublin, Ireland on June 19, 2017.  Slides are available at https://www.isi.edu/~johnh/PAPERS/Heidemann17c.pdf. From the abstract: New network measurements are great–you can learn … Continue reading

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new talk “Collecting and Visualizing Outages Over the Long Haul” at the AIMS Workshop 2017

John Heidemann gave the talk “Collecting and Visualizing Outages Over the Long Haul” at CAIDA’s Active Internet Measurement (AIMS) Workshop in San Diego, California, USA on March 2, 2017.  Slides are available at http://www.isi.edu/~johnh/PAPERS/Heidemann17b.pdf. From the abstract: We have been collecting data … Continue reading

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new animation: the August 2014 Time Warner outage

On August 27, 2014, Time Warner suffered a network outage that affected about 11 million customers for more than two hours (making national news). We have observing global network outages since December 2013, including this outage. We recently animated this … Continue reading

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new animation: a sample of U.S. networks, before and after Hurricane Sandy

In October 2012, Hurricane Sandy made landfall on the U.S. East Coast causing widespread power outages. We were able to see the effects of Hurricane Sandy by analyzing active probing of the Internet. We first reported this work in a … Continue reading

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new talk “Internet Populations (Good and Bad): Measurement, Estimation, and Correlation” at the ICERM Workshop on Cybersecurity

John Heidemann gave the talk “Internet Populations (Good and Bad): Measurement, Estimation, and Correlation” at the ICERM Workshop on Cybersecurity at Brown University, Providence, Rhode Island on October 22, 2014. Slides are available at http://www.isi.edu/~johnh/PAPERS/Heidemann14e/. From the abstract: Our research … Continue reading

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new animation “Watching the Internet Sleep”

Does the Internet sleep? Yes, and we have the video! We have recently put together a video showing 35 days of Internet address usage as observed from Trinocular, our outage detection system. The Internet sleeps: address use in South America … Continue reading

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new conference paper “When the Internet Sleeps: Correlating Diurnal Networks With External Factors” in IMC 2014

The paper “When the Internet Sleeps: Correlating Diurnal Networks With External Factors” will appear at ACM Internet Measurements Conference 2014 in Vancouver, Canada (available at http://www.isi.edu/~johnh/PAPERS/Quan14c/ with cite and pdf, or direct pdf). From the abstract: As the Internet matures, policy questions loom … Continue reading

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