Authors

Emile Aben

Based in Amsterdam, NL

98

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368

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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.

Hampering Eyeballs - Observations on Two "Happy Eyeballs" Implementations

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…

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18

F-root IPv6 Route Leak - the DNSMON View

This weekend the NANOG mailing list was abuzz about an F-root IPv6 route leak, that resulted in the F-root DNS server instance located in Bejing, China, being queried from outside of China. This normally doesn't happen, as this instance is advertised with the BGP attribute NO_EXPORT, which means it…

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4

Measuring World IPv6 Day - Comparing IPv4 and IPv6 Performance

During World IPv6 day we measured the performance of IPv4 and IPv6 between 40 vantage points and 46 World IPv6 Day participants and other dual-stacked sites. If one has to pick a winner, then the old protocol, IPv4, would win, but IPv6 often shows comparable or better performance.

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Measuring World IPv6 Day - Some Glitches And Lessons Learned

As already stated by us and others, World IPv6 Day on 8 June, was a big success. No major issues came to light, and most minor issues that surfaced were resolved, and as such were a useful learning experience. In this article we provide details on some of the events we observed by looking at our me…

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8

When Does World IPv6 Day Start?

World IPv6 Day is on 8 June 2011. On this day, a lot of organisations, including some of the most popular ones like Google, Yahoo and Facebook, are going to provide IPv6 addresses for AAAA queries for their websites. This will make content available over IPv6 for one full day. Since DNS responses a…

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4

World IPv6 Day - IPv6 Eye Chart

The RIPE NCC is doing some measurements for World IPv6 Day. One of them is the IPv6 eye chart, a web page that allows you to test your connectivity to selected dual-stacked web sites and World IPv6 participants. The goal is to see if an end user has connectivity problems to dual-stacked websites. T…

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3

Unsolicited Internet Traffic from Libya

Amidst the recent political unrest in the Middle East, researchers have observed significant changes in Internet traffic and connectivity. In this article we tap into a previously unused source of data: unsolicited Internet traffic arriving from Libya. The traffic data we captured shows distinct c…

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