Google IPv6 measurements in Europe appear heading down...

[Doug Barton]

So far all the conversation I've seen about this has been on the eyeball 
side. Has anyone looked into whether or not the content networks have 
made changes (removing/adding AAAAs for example) that would be 
responsible for the temporary skew?

Doug


On 11/5/14 7:23 PM, Kate Lance wrote:
> Hi Éric,
>
> I'm puzzled, not about the recent decline (and now near-recovery) but at the
> odd 'kick' in the stats on Aug 17, mainly for Europe.
>
> Compare Belgium and most of the high-IPv6 EU countries (for clarity I left a
> couple out like FR and CH, but they have small kicks as well):
> https://www.vyncke.org/ipv6status/compare.php?metric=p&countries=be,de,lu,ro,cz,no
>
> - with high-IPv6 non-EU (BE left in for comparison):
> https://www.vyncke.org/ipv6status/compare.php?metric=p&countries=be,us,jp,pe,my
> The US and Peru show small increments too, but certainly not like the EU countries.
>
> Looking closely, it appears something increased the measurements in Europe a
> little on 13 Aug, then a lot on 17 Aug.  Erik Taraldsen from Telenor Norway
> said they'd been rolling out v6 since summer - but that sounds more gradual
> than a sudden increment in mid-August. Any ideas ...?
>
> Regards,
> Kate
>
>
> On Thu, Oct 23, 2014 at 06:03:42PM +0000, Eric Vyncke (evyncke) wrote:
>>     With the link, it is probably better… still need some caffein
>>
>>     [1]https://www.vyncke.org/ipv6status/compare.php?metric=p&countries=be,
>>     de,us,lu
>>
>>     From: Eric Vyncke <[2]evyncke at cisco.com>
>>     Date: jeudi 23 octobre 2014 09:38
>>     To: "[3]ipv6-ops at lists.cluenet.de" <[4]ipv6-ops at lists.cluenet.de>
>>     Subject: Google IPv6 measurements in Europe appear heading down...
>>
>>     For a couple of weeks, it seems that Google IPv6 measurements are
>>     heading down mainly for Europe. For example, here is a link to a
>>     presentation of the Google measurements for several European countries
>>     and USA. There is a clear drop in the last days/weeks for European
>>     countries but not for USA.
>>     This includes a big drop for my country (BE) :-O and I have checked
>>     with all Belgian ISP and they have no explanation as for them 'business
>>     as usual'. Apnic also does not show such a big drop.
>>     So, I am guessing either a 'bug' in Google measurements infrastructure
>>     in Europe or could it be that the IPv6 latency to Google has increased
>>     a lot so that Happy Eyeball prefers IPv4? Recent measurement of
>>     dual-stack latency to www.google.com from several Belgian ISP gave 10%
>>     slower over IPv6.
>>     Any clue will be welcome
>>     -éric
>>
>> References
>>
>>     1. https://www.vyncke.org/ipv6status/compare.php?metric=p&countries=be,de,us,lu
>>     2. mailto:evyncke at cisco.com
>>     3. mailto:ipv6-ops at lists.cluenet.de
>>     4. mailto:ipv6-ops at lists.cluenet.de