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This page provides information on ping response times measured every 30 minutes from the SLAC National Lab (40 miles south of San Francisco in California, US) to sites in Ukraine around the time of the Russo Ukraine war starting in February 2022. See https://www.usnews.com/news/best-countries/slideshows/a-timeline-of-the-russia-ukraine-conflict for events leading up to the crisis in 2022, and see https://en.wikipedia.org/wiki/Timeline_of_the_2022_Russian_invasion_of_Ukraine for progress of the 2022 war.
On 24 February 2022, the Russian President Vladimir Putin ordered an invasion of Ukraine by Russian Armed Forces previously concentrated along the border. At that time the PingER project was only monitoring 2 sites in Ukraine: mail.kipt.kharkov.ua and ns.kiev.ua. Since then we have added many over 20 more sites.
In addition one of the monitored sites (mail.kipt.kharkov.us) was a PingER Beacon site that was monitored from 11 PingER sites around the world, in particular, the closest PingER monitoring site from Ukraine was DESY in Hamburg GermanyYou can click on the graphs to increase their size.
Summary Mar 22, 6pm California time
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As the war progressed we added more Ukrainian hosts to the list of monitored sites, and lost a few.
Map of monitored sites
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We might expect the network performance to hosts that are in a war zone may be degraded and show up as more variability on the RRTsRTTs. A sensitive measure of variability of the RTTs is the Jitter between adjacent measurements. We use a derivation of the Inter Packet Delay Variation (IPDV) to estimate the Jitter from the Ping measurements (see https://www.slac.stanford.edu/comp/net/wan-mon/tutorial.html). In addition we characterize the proximity of the war to a host in Ukraine by its proximity defined as:
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The times in the plots below are GMT. You can click on the graphs to increase their size.
mail.kipt.kharkov.ua (Kharkov Institute of Physics and Technology, Kharkiv, latitude & longitude 50.0867 36.2522)
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