Internet connectivity is not fairly distributed around the world, in particular for islands or isolated areas. For instance, connectivity to and from the Reunion Island is mainly based on links to France located about 10,000 km away. This causes long delays and degraded Internet service. In this article, we investigate the performance of the Internet connectivity by analysing delay and path properties from and to La Reunion.… Read more
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.
As a part of the RIPE NCC's ongoing engagement with the Internet Exchange Points (IXPs) we have organised a code sprint. Researchers and IXP developers got together to continue work on the projects started during the IXP Tools hackathon, and achieved new, tangible results. … Read more
International routing detours are paths that originate in one country, visit another country and return to the original country. Such circuitous routes could occur due to intentional traffic engineering, lack of local peering, BGP misconfigurations, or even attacks. Detecting such events helps network engineers to diagnose problems. … Read more
Last month we covered the 2015 leap second ahead of the insertion of a leap second at the very end of 2016. As stated previously, leap seconds can trigger poorly-tested code paths; leap second handling always unearths bugs and issues. This one was no exception!… Read more
In this article, we give one example of the possible communities that are now easier to build around RIPE Atlas probes. With the tagging of similar probes, existing communities can use additional tools for creating and analysing RIPE Atlas measurements, such as "IXP Country Jedi", to create their own interpretation of the available data. We are hoping this is going to be an inspiration to the reader, and an invitation to play with the results and improve on the code. … Read more
Four years have passed since the RIPE NCC announced its plans to put RIPE Atlas anchors into production. Since the first anchors went online in 2013, we’ve been working hard to both maintain and expand the network. As a result, we currently have 238 anchors deployed across 66 countries!… Read more
On 31 December this year, we're scheduled for another leap second. There are many stories about what leap seconds can do to infrastructure and applications, and rituals are built up around them. Such rituals stem from reality: leap seconds trigger poorly-tested code paths and run contrary to assumptions that system time always runs in one direction. It's useful to be aware of how your infrastructure handles leap seconds and how NTP servers handle them, so you can plan around the event. Here, we look at some of the NTP measurements the RIPE Atlas platform took around the last leap second, and approaches for handling them.… Read more
Here is an example of how cross-pollination between two or more communities can create success. An overlap between IETF participants, RIPE Atlas users and listeners of a popular German podcast has led to growth in the deployment of RIPE Atlas probes (hardware devices that measure Internet infrastructure). We are still interested in expanding this platform in areas and networks that need more coverage. … Read more
As RIPE Atlas is expanding, it is approaching the magical milestone of 10,000 probes. However, as our public graphs also illustrate, the expansion has slowed down recently. … Read more
At the RIPE NCC, we are grateful for the contribution RIPE Atlas ambassadors make to the success of the RIPE Atlas measurements platform. In this article, we focus on a handy RIPEstat tool that can be used to visualise the results of their efforts. The tool provides a historical view of country-specific growth of RIPE Atlas probe numbers and allows for comparisons of up to four countries in the same graph. … Read more