Authors

Emile Aben

Based in Amsterdam, NL

103

Articles

576

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About the author

I'm a system architect/research coordinator at the RIPE NCC, where I work in the science group. I'm a chemist by training, but have been working since 1998 on Internet related things, as a sysadmin, security consultant, web developer and researcher. I am interested in technology changes (like IPv6 deployment), Internet measurement, data analysis, data visualisation, sustainability and security. I'd like to bring research and operations closer together, ie. do research that is operationally relevant. When I'm not working I like to make music (electric guitar, bass and drums), do sports (swimming, (inline) skating, bouldering, soccer), and try to be a good parent.

Does the Internet Route Around Damage? - Edition 2023

Does the Internet Route Around Damage? - Edition 2023

5 min read

On 22-23 November 2023, the Amsterdam Internet Exchange (AMS-IX) had an outage on their Amsterdam peering platform. As this is generally considered one of the largest IXPs on the planet, we looked into this event from the perspective of RIPE Atlas to see what it had to tell us about the robustness …

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Two Years of Selective Peering with RIS

Two Years of Selective Peering with RIS

8 min read

The peering strategy for RIS has traditionally been an open one, geared towards maximising the number of peers. But over the past couple of years we've been working with a more selective approach that reduces redundancy and cost, while also helping make sure RIS provides a diverse view of global ro…

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RIS Beaconing - Shining a Light on BGP Dynamics

RIS Beaconing - Shining a Light on BGP Dynamics

21 min read

RIS is a widely used public route collector project that provides a better view of Internet routing. One thing that makes RIS unique is that it inserts observable patterns of activity into BGP through a process called beaconing. We take a look at RIS beacons and ask how to make space for more.

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Unknown Attribute 28 - A Source Of Entropy in Interdomain Routing?

Unknown Attribute 28 - A Source Of Entropy in Interdomain Routing?

13 min read

On 2 June 2023, there was a disruption in Internet interdomain routing. We got notified of recurring resets of some routers that take care of routing between networks, due to malformed BGP packets with BGP attribute 28. Here we take a first look at the event through RIS and offer some initial ideas…

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The Resilience of the Internet in Ukraine - One Year On

The Resilience of the Internet in Ukraine - One Year On

17 min read

In our earlier analysis of Ukraine back in March 2022, we looked at factors that contributed to the resilience of the country's Internet since the outbreak of the war. A little over a year on, we draw on data from RIPE Atlas and RIPE RIS to investigate what has changed.

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How Is Russia Connected To The Wider Internet?

How Is Russia Connected To The Wider Internet?

11 min read

Speculation about Russia disconnecting or being disconnected from the wider Internet abounds. In this article, we look at the connectivity of the Russian Internet to the wider Internet and how this evolved around the Russian invasion into Ukraine and sanctions related around that.

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Latency Into Your Network - As Seen From RIPE Atlas

Latency Into Your Network - As Seen From RIPE Atlas

11 min read

We created a data aggregate we call 'minRTT' that gives the minimum latency into each ASN (and IXP!) from RIPE Atlas for a given day. This allows us to visualise network deployments and can help with insights into structural latency problems for a network. We build a few visualisations on top of th…

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