> On 17 Oct 2022, at 08:57, Geoff Huston <[email protected]> wrote:
>
>
>
>> On 17 Oct 2022, at 7:53 am, Michael Richardson <[email protected]> wrote:
>> I think that's because
>> recursive nameserves effectively have always done an equivalent to "happy
>> eyeballs", so the risk is low.
>>
>
>
> That certainly was not the case in 2015:
> https://www.potaroo.net/presentations/2015-10-04-dns-dual-stack.pdf
>
> I have not seen a large scale measurement since then but I suspect that
> nothing has changed. i.e.:
> recursive resolvers do not do the equivalent of happy eyeballs behaviour.
BIND doesn’t race queries but it does bias the selection of IPv6 servers over
IPv4 servers. This went into BIND 9.11.0. The CHANGES note was dated
2015-09-28.
4222. [func] Bias IPv6 servers when selecting the next server to
query. [RT #40836]
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: [email protected]
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