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Emile Aben

Location: Amsterdam, NL

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.

Pages created by Emile Aben

IPv4 Address Space Growth per Country
IPv4 Address Space Growth per Country
Emile Aben — 06 Feb 2012

With the depletion of the IPv4 free pool in the APNIC region and the imminent IPv4 free pool run out in the RIPE NCC's service region, it is interesting to look at IPv4 allocation rates per country to see where free pool run out has and will have the most consequences, in terms of curtailing growth of IPv4 address usage. In this article, we try to visualise where "the pressure is on" the most.… Read more

Hampering Eyeballs - Observations on Two "Happy Eyeballs" Implementations
Emile Aben — 12 Nov 2011

In this article we look at two "Happy Eyeballs" implementations, that aim to reduce degraded user experience as the result of broken dual-stack configurations. We call this degraded user experience "Unhappy Eyeballs". The Chrome web browser implementation seems to succeed in this aim, while Apple's Mac OS X Lion operating system only partially succeeds in avoiding "Unhappy Eyeballs". Furthermore we show that Mac OS X Lion, in combination with the Safari web browser results in "Happy Eyeballs", but leaves well performing native IPv6 capacity unused in roughly half of the cases we measured, a condition we name "Hampering Eyeballs".… Read more

Tags: ipv6