Emile Aben

Based in Amsterdam, NL




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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.

NOGs on NOGs

The RIPE NCC recently held two Open House events to bring together people who help organise NOGs, which bring together people who help operate the Internet in particular parts the world.

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Facebook Down and Out in BGPlay

Following the Facebook outage that took place on 4 October, we saw people looking to BGPlay to get a better view of what went on. Here's a look at what the RIPEstat visualisation has to show us about the event in question.

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Looking Inside Outages with RIPE Atlas

RIPE Atlas probes actively measure Internet connectivity through a variety of measurement types. In this article, we take a closer look at what probes can tell us about outages.

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Network Delays in Times of Corona

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.

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After the Quake in Croatia

After the recent earthquake in Croatia we looked at RIPE Atlas and RIS data to visualise the impact a large event like this can have on the resilience of the Internet.

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What’s the Deal with IPv6 Link-Local Addresses?

...or, how RIPE Atlas measurement data just got a little bit more complex. Some people say IPv6 is "96 more bits, no magic". And while this is true for most network operators, if you're a RIPE Atlas system programmer, you can run into interesting situations. In this article, we described how link-l…

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How can you quickly figure out if a network you are using is dropping invalid Resource Public Key Infrastructure (RPKI) BGP announcements? You can do so by opening up a browser and visiting our RPKI test web page.

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BGP Zombies

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…

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Measuring Paths in Bosnia and Herzegovina

Based on RIPE Atlas measurements, we can illustrate if paths between different networks in a given country stay in that country. We can also provide sketches of interconnections between networks in that country. In this article we look at the situation in Bosnia and Herzegovina.

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An API for Summarising Events in RIPE Atlas RTT Time Series

This post describes the result of an internship of a month of integrating an experimental data analysis method into RIPE Atlas.

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