On 8 June 2011, Google, Facebook, Yahoo!, Akamai and Limelight Networks will be amongst some of the major organisations that will offer their content over IPv6 for a 24-hour test period. The goal of the day is to motivate organizations across the industry, Internet service providers, hardware makers, operating system vendors and web companies – to prepare their services for IPv6 to ensure a successful transition as IPv4 addresses run out.
Chances are some things will break but that most internet users won’t notice. Some web sites might temporarily disappear because some networks may try, but be unable, to connect to the new-style addresses. The real purpose of the test day is to discover the impact of a large-scale shift to IPv6 on the millions of servers, routers, and switches that make up the internet.
For more info please visit http://www.worldipv6day.org/