In your letter dated Tue, 19 Jul 2011 08:26:26 +0900 you wrote:
Given that each of us reads something different into the definition of HISTO
RIC, is there any hope that this thread will ever converge?
I don't see any "progress".
We may just have to blacklist any resolvers that have 6to4 clients
behind them and leave it at that.
I don't think there is any need to be overly dramatic about it.
I firmly belive that 6to4 should be moved to historic. But at the same time,
I was looking for a poorly performing IPv6 connection to test happy eyeballs
and didn't find it. 6to4 can just work.
So a less aggressive approach might be in order.
(If you look at the numbers, there are fewer and fewer 6to4 connections to
dual-stack sites because modern operating system releases will prefer IPv4
over 6to4. Of the users who didn't upgrade, there is about 20% with a
completely broken 6to4 setup. What remains is slightly higher latency due to
non-optimal placement of relays)
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