nanog mailing list archives

Re: AAAA's for www.netflix.com


From: Joly MacFie <joly () punkcast com>
Date: Thu, 7 Jun 2012 19:14:32 -0400

well, something appears to be working..

http://www.betterbroadbandblog.com/2012/06/world-ipv6-daywe-have-liftoff/

Netflix moved up to second in the IPv6 list – as noted above, Netflix has
been rolling out IPv6 coverage over the last few weeks.  Interestingly, it
appears as if Netflix may have created its own IPv6-specific domain which
is responsible for almost a third of all IPv6 traffic. If this is the case
it might not be in full compliance with the spirit of World IPv6 Day, as
the aim should have been for Netflix to operate one single domain with both
AAAA records for IPv6 and A records for IPv4.

On Thu, Jun 7, 2012 at 6:04 PM, Mark Andrews <marka () isc org> wrote:


In message <20120607165818.GA30416 () srv03 cluenet de>, Daniel Roesen
writes:
On Thu, Jun 07, 2012 at 07:52:29AM -0600, Dave Temkin wrote:
Just to close the loop on this - UltraDNS has an issue with CNAMEs and
their Directional DNS service.  We (Netflix) have applied a workaround
and
it appears stable.

Hm, looking at http://v6launch.ripe.net/, whatever you changed didn't
improve visibility of the AAAA, but decreased it.

TTL's of zero don't help.  The A query has a TTL of 3600 in the
response the AAAA query has a zero TTL.  This is rocket science.
This isn't hard to do correctly.  How to handle CNAMEs has been
specified 1/4 of a century.

Best regards,
Daniel

--
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PHONE: +61 2 9871 4742                 INTERNET: marka () isc org




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