World IPv6 Launch day came and went and nobody noticed a thing. Which is a sign that things went off without a hitch. Not that any problems should have been expected, but the glitch-less roll-out is due to a bit of cheating in that several big sites actually enabled IPv6 connectivity well ahead of launch day.
Since Netflix is the single biggest source of internet traffic in the US overall, it's no surprise that total IPv6 traffic increased dramatically once Netflix got on board.
Even though Netflix was part of the World IPv6 Launch event, it seems that the site may not have followed the "rules" to the letter since it created a separate domain name for IPv6 traffic.
World IPv6 Launch day was supposed to be the day sites start serving content via both IPv4 and IPv6 for the same domain name, a dual stack.
Up until Netflix started using IPv6, YouTube had been the major source. Google has had an IPv6 version of the site, served via a dedicated domain, for quite a while now. YouTube is one of the biggest sites in the world and video files are huge so it uses up a lot more bandwidth than a regular site.
So far, in the US, the total IPv6 traffic followed closely YouTube's traffic patterns, but that changed when Netflix came in the picture. In an instant, Netflix IPv6 traffic equaled that generated by YouTube.
The day after Netflix enabled IPv6 connections, Facebook did the same, though the impact is considerably smaller than that of either Netflix or YouTube.
Needless to say though, IPv6 traffic in the US saw another, smaller, spike on Launch day though it's going to take a while longer before the impact can be fully assessed.
Via: Netflix Turns to IPv6 Leading to Record Traffic on World IPv6 Launch Day
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