Despite widespread publicity for World IPv6 Launch day
earlier this week, the protocol's presence on the Internet remains painfully modest next to the domination of IPv4, Internet monitoring companies have reported.
From early June 6 numbers, the Internet Society's World IPv6 Launch test might be educating the network community about its importance without actually convincing that many to use it in anger.
According to Arbor Networks, traffic did rise on the day, with native (i.e non-tunnelled) IPv6 showing a 20 percent increase across a small but representative selection of tier 1 and 2 US-based ISPs. This fell back as Europe came online, which could reflect less use of the protocol or fewer routers from which IPv6 data can be extracted. (See also "IPv6: Five Things You Should Know."