IPv6 and CDN's

Sat Nov 27 20:21:35 UTC 2021

On 11/27/21 12:16 PM, William Herrin wrote:
> On Fri, Nov 26, 2021 at 3:07 PM Michael Thomas <mike at mtcc.com> wrote:
>>> On 11/26/21 1:44 PM, Jean St-Laurent via NANOG wrote:
>>> Here are some maths and 1 argument kicking ass pitch for CFO’s that use iphones.
>>> Apple tells app devs to use IPv6 as it's 1.4 times faster than IPv4
>> This really hits my bs meter big time.
> If I had to guess, this is an example of correlation is not causation.
> Folks with IPv6 tend to be on savvier service providers who have
> better performance for both IPv4 and IPv6.  To find out for sure,
> you'd have to do an experiment where same-user-same-server connections
> are split between IPv4 and IPv6 and then measure the performance
> difference. I don't know if anyone has done that but these particular
> articles look like someone is just looking at the high-level metrics.
> Those won't hold any statistical validity because they're not actually
> random samples.

I agree. It's pretty suspect that they didn't give the reason it was 
happening. I mean, why the incuriosity?

Mike