Dear colleagues, we looked into the measurement data about the outage that DE-CIX Frankfurt experienced on the night of 9 April 2018. As this is one of the largest Internet Exchange Points, this is an interesting case to study in more depth to see what we can learn about Internet robustness: https://labs.ripe.net/Members/emileaben/does-the-internet-route-around-damag... Please let us know if you have any feedback. Regards, Emile Aben RIPE NCC