Based in Tokyo
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I am the deputy director of IIJ Research Laboratory. The focus of my work is on Internet measurements, data analysis, and routing.
• 7 min read
The Internet Health Report (IHR) is an open source project, partly funded by RIPE NCC Community Projects Fund, that monitors AS connectivity. This article is a quick introduction to IHR and shares some good examples of IHR monitoring capabilities. Interested? Take a look at our website (https://ihr…
• 3 min read
As part of the Internet health hackathon, we studied RIPE Atlas delay signals before and during the COVID-19 pandemic. Here's what we found.
• 8 min read
When withdrawing an IP prefix from the Internet, an origin network sends BGP withdraw messages, which are expected to propagate to all BGP routers that hold an entry for that IP prefix in their routing table. Yet network operators occasionally report issues where routers maintain routes to IP prefi…
• 5 min read
How does your network depend on other networks? In this article we present a new tool that helps you measure AS dependencies.
• 8 min read
Detecting network disruptions is a recurring problem. Clearly locating performance degradation is an important step in debugging and subsequently fixing connectivity issues.
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Hi Juraj, thanks, I added Slovakia: https://ihr.iijlab.net/ihr/en-us/covid19?country=Slovakia
“How do we get additional eyeball networks added for a country? The dashboard is great! Lots of people asking for this kind of data, so it really shows off what kind be done with the RIPE Atlas data.”
Hi Matt, The RTT/COVID dashboard only shows the top eyeball networks in a country, but if you are interested in a particular network you can type its name or ASN in the top left search field. It will bring you to page with all the metrics we have for that network. If really you want to add more networks to the dashboard, then I could change it :)
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