john_heidemann - Slashdot User

Comment not so good for the Chilean Internet (Score 1) 27

by john_heidemann on Tuesday February 25, 2025 @09:39PM (#65195411) Attached to: A Major Blackout Hits Chile, Leaving Millions Without Power

Of course, a country-wide power outage is not so good for the Chilean Internet. It looks like problems started about 18:30Z (3:30pm local time) and got worse quickly, as we descrribe.

Comment measuring outages in Ontario and New Brunswick (Score 3, Informative) 89

by john_heidemann on Friday July 08, 2022 @04:22PM (#62685634) Attached to: A Major Rogers Outage Has Cut Off 25 Percent of Canada's Internet Traffic

We're seeing a huge number of networks unavailable in Ontario and New Brunswick. About 30% of Toronto's IPv4 /24s, and 45% of /24s in Moncton, NB. We describe this at https://ant.isi.edu/blog/?p=18...

Comment animating the outage (Score 1) 27

by john_heidemann on Monday August 31, 2020 @10:14PM (#60460594) Attached to: CenturyLink Outage Led To a 3.5% Drop in Global Web Traffic

We observed the outage in Trinocular, an Internet-wide outage detection system---the animation is at https://ant.isi.edu/outage/ani/centurylink202008/index.html. This is one of the largest U.S. outages in some time!

Comment bad news for liu cixin (Score 1) 146

by john_heidemann on Saturday November 09, 2019 @08:37PM (#59398548) Attached to: AI Cracks Centuries-Old 'Three Body Problem' In Under a Second

This is bad news for Liu Cixin https://en.wikipedia.org/wiki/The_Three-Body_Problem_(novel)
but maybe good news for humanity.

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