On Mon, Jun 11, 2018 at 2:29 PM Job Snijders <job@instituut.net> wrote:
I suspect that this may not be an apples to apples comparison.
Perhaps lack of IPv6 is more prevalent in rural areas with poorer connectivity to the rest of the Internet? Perhaps both these CDNs serve content for different types of devices over the different AFIs (maybe old mediaboxes with a slow cpu prefer IPv4?). Perhaps networks that deploy IPv6 are more likely to allow and accommodate on-net caches?
I theorize that the described speed difference between IPv4 and IPv6 is an artifact of how the data is analysed rather than an architectural speed difference between the protocols themselves.
Kind regards,
Job
A similar take, is that big eyeballs (tmobile, comcast, sprint, att, verizon wireless) and big content (goog, fb, akamai, netflix) are ipv6. Whats left on ipv4 is the long tail of people asking for help on how to buy a /24