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RIPE Atlas

Mihnea-Costin Grigore — Oct 2010
This page contains all information related to the active measurements network, RIPE Atlas.

Learn more about the RIPE Atlas active measurements network.

You can also find a collection of use cases, reviews and other articles written by RIPE Atlas users.

Detecting IXPs in Traceroute Paths Using traIXroute
Detecting IXPs in Traceroute Paths Using traIXroute
George Nomikos — 03 Aug 2016

traIXroute is a tool that detects whether and where a traceroute path crosses an Internet Exchange Point (IXP). It uses data from multiple sources and advanced criteria to verify IXP crossings to deal with problems due to replies from third-party interfaces or inaccuracies in the available data about IP addresses assigned to IXPs. These problems can mislead simple heuristics, based solely on the IP address prefixes allocated to IXPs, for the inference of IXP crossings.

Troubleshooting RIPE Atlas Probes: USB Sticks
Troubleshooting RIPE Atlas Probes: USB Sticks
Philip Homburg — 04 Jul 2016

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!

Anycast vs. DDoS - Evaluating the November 2015 Root DNS Event
Anycast vs. DDoS - Evaluating the November 2015 Root DNS Event
Giovane Moura — 31 May 2016

IP anycast has been widely used to replicate services in multiple locations as a way to deliver better performance and resilience. It has been largely employed by CDNs and DNS operators, such as on the root server system. However, there is little evaluation of anycast under stress.

A Visual Impression of Probe Lifetimes
A Visual Impression of Probe Lifetimes
Philip Homburg — 25 May 2016

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.

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