Tag Archives: reliability

new talk “Anycast vs. DDoS: Evaluating Nov. 30” at DNS-OARC

John Heidemann gave the talk “Anycast vs. DDoS: Evaluating Nov. 30” at DNS-OARC in Dallas, Texas, USA on October 16, 2016.  Slides are available at http://www.isi.edu/~johnh/PAPERS/Heidemann16c.pdf.   From the abstract: Distributed Denial-of-Service (DDoS) attacks continue to be a major threat … Continue reading

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new conference paper “Anycast vs. DDoS: Evaluating the November 2015 Root DNS Event” in IMC 2016

The paper “Anycast vs. DDoS: Evaluating the November 2015 Root DNS Event” will appear at ACM Internet Measurement Conference in November 2016 in Santa Monica, California, USA. (available at http://www.isi.edu/~weilan/PAPER/IMC2016camera.pdf) From the abstract: Distributed Denial-of-Service (DDoS) attacks continue to be a major threat in … Continue reading

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congratulations to Xun Fan for his new PhD

I would like to congratulate Dr. Xun Fan for defending his PhD in May 2015 and completing his doctoral dissertation “Enabling Efficient Service Enumeration Through Smart Selection of Measurements” in July 2015. From the abstract: The Internet is becoming more and more important in … 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 technical report “When the Internet Sleeps: Correlating Diurnal Networks With External Factors (extended)”

We released a new technical report “When the Internet Sleeps: Correlating Diurnal Networks With External Factors (extended)”, ISI-TR-2014-691, by Lin Quan, John Heidemann, and Yuri Pradkin, available as http://www.isi.edu/~johnh/PAPERS/Quan14b. pdf From the abstract: As the Internet matures, policy questions loom … Continue reading

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new video “A Retrospective on an Australian Routing Event”

On 2012-02-23, hardware problems in an Australian ISP (Dodo) router caused it to announce many global routes to their ISP (Telstra), and from there to others. The result: for 45 minutes, millions of Australians lost international Internet connectivity. While this … Continue reading

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new conference paper “The Need for End-to-End Evaluation of Cloud Availability” in PAM 2014

The paper “The Need for End-to-End Evaluation of Cloud Availability” was published by PAM 2014 in Marina del Rey, CA (available at http://www.isi.edu/~zihu/paper/cloud_availability.pdf). From the abstract: People’s computing lives are moving into the cloud, making understanding cloud availability increasingly critical. Prior studies of … Continue reading

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congratulations to Xue Cai for her new PhD

I would like to congratulate Dr. Xue Cai for defending her PhD and filing her doctoral disseration “Global Analysis and Modeling on Decentralized Internet” in Dec. 2013. From the abstract: Better understanding about Internet infrastructure is crucial to improve the reliability, … Continue reading

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new technical report “A Holistic Framework for Bridging Regional Threats to User QoE”

We just released a new technical report “A Holistic Framework for Bridging Regional Threats to User QoE”, ISI-TR-2013-687, available as https://www.isi.edu/~johnh/PAPERS/Cai13c.pdf From the abstract: Submarine cable cuts have become increasingly common, with five incidents breaking more than ten cables in the … Continue reading

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