Abel Avram on InfoQ
World IPv6 Day proved to be a success. Major service providers and websites are ready for IPv6, but some experience response times lower than when using IPv4. Experts draw attention to a possible security flaw in IPv6 implementations.
The long anticipated event, World IPv6 Day, announced last year and recently by InfoQ, finally came and passed on June 8th. According to Internet Society (ISOC), the event organizer, more than 1,000 Internet service providers and websites, including Akamai, Facebook, Google, Limelight, Microsoft, and Yahoo!, attempted for 24 hours to see if they are ready for IPv6, and what problems might appear when IPv6 is enabled for many of their websites. The test demonstrated that “major websites around the world are well-positioned for the move to a global IPv6-enabled Internet, enabling its continued exponential growth”, according to ISOC, which concluded:
A key goal of World IPv6 Day was to expose potential issues with real-world IPv6 use under controlled conditions. Given the diversity of technology that powers the Internet, the global nature of the trial was crucial to identify unforeseen problems. The vast majority of users were able to access services as usual, but in rare cases, users experienced impaired access to participating websites during the trial.
Article has some initial graphics of analysis of traffic on World IPv6 Day.