Tag Archives: visualization

new talk “Internet Outages: Reliablity and Security” from U. of Oregon Cybersecurity Day 2018

John Heidemann gave the talk “Internet Outages: Reliablity and Security” at the University of Oregon Cybersecurity Day in Eugene, Oregon on April 23, 2018.  Slides are available at https://www.isi.edu/~johnh/PAPERS/Heidemann18e.pdf. From the abstract: The Internet is central to our lives, but we know astoundingly … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , , , , | Leave a comment

new project “Interactive Internet Outages Visualization to Assess Disaster Recovery”

We are happy to announce a new project, Interactive Internet Outages Visualization to Assess Disaster Recovery.   This project is supporting the use of Internet outage measurements to help understand and recover from natural disasters. It will expand on the visualization of … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , | Leave a comment

new technical report “Back Out: End-to-end Inference of Common Points-of-Failure in the Internet (extended)”

We released a new technical report “Back Out: End-to-end Inference of Common Points-of-Failure in the Internet (extended)”, ISI-TR-724, available at https://www.isi.edu/~johnh/PAPERS/Heidemann18b.pdf. From the abstract: Internet reliability has many potential weaknesses: fiber rights-of-way at the physical layer, exchange-point congestion from DDOS at … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , , , , , | Leave a comment

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

Posted in Uncategorized | Tagged , , , , , , , , , , , , , | Leave a comment

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

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , , , , | Leave a comment

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

Posted in Uncategorized | Tagged , , , , , , , , , | Leave a comment

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

Posted in Uncategorized | Tagged , , , , , , , , , , | Leave a comment

new animation: eight years of Internet IPv4 Censuses

We’ve been taking Internet IPv4 censuses regularly since 2006.  In each census, we probe the entire allocated IPv4 address space.  You may browse 8 years of data at our IPv4 address browser. We recently put together an animation showing 8 … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , , | Leave a comment

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

Posted in Uncategorized | Tagged , , , , , , , , , , , , , , , | Leave a comment

welcoming Greece to the ANT Internet Census

We’re happy to welcome Greece to our browsable Internet map at http://www.isi.edu/ant/address/browse/ !  Of course Greece has always been in our Internet censuses, but George Xylomenos and George Polyzos of the Athens University of Economics and Business (their lab) helped set up a new … Continue reading

Posted in Uncategorized | Tagged , , , , , , , , , , , | Leave a comment