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Philip Homburg

RIPE NCC Staff — 12 Jun, 2013 09:53 AM
NTP Measurements with RIPE Atlas by Philip Homburg — last modified 28 Aug, 2017 09:23 AM

This article describes how RIPE Atlas probes and anchors maintain their clocks, and how accurate these clocks are. We also plan to make the NTP measurements we describe here available as an additional measurement type for RIPE Atlas users.

A Visual Impression of Probe Lifetimes by Philip Homburg — last modified 08 Mar, 2017 09:45 AM

For a while now, the number of active RIPE Atlas probes has hovered around the 9,400 mark. This means that new probes are being connected at a fast enough rate to replace failing probes, but not enough to grow the network. At the same time, the version 3 probes have problems with their USB sticks. This led us to wonder whether these two issues are related.

Troubleshooting RIPE Atlas Probes: USB Sticks by Philip Homburg — last modified 17 Oct, 2016 08:56 AM

Some of the third version of RIPE Atlas probes have recently had an issue with their USB sticks. We're investigating what may be causing this issue and have a possible solution, outlined below. (At the same time, we're also looking into a new hardware solution for the future.) If you've had trouble with your probe, please follow these simple steps. RIPE Atlas users everywhere will thank you for getting your probe back online - and we will, too!