On Dec 3, 2014, at 9:15 PM, Dave Crocker <dhc(_at_)dcrocker(_dot_)net> wrote:
...
So, after 25 years of effort, we've achieved 5% penetration. Wow.
I'm not certain that it is appropriate to count the years of protocol
development, testing, and deployment into operating systems and routers
as the denominator for the "5% penetration"... There has not been a
strong need for IPv6 until there was actual runout of IPv4 free pool,
and this did not occur in any of the regions until 2011 (and is yet to
happen in the North American region) You should either measure service
provider enablement of IPv6 from IPv4 free pool runout dates, or need to
consider the IPv6 protocol support that has been achieved in deployed
devices (enabled or not) over the 25 year period.
Also, characterizing IPv6 success based on one providers success is
probably not informative... there are service providers with much
higher enablement -
http://www.internetsociety.org/deploy360/blog/2014/09/verizon-wireless-hits-56-ipv6-t-mobile-usa-40-att-24/
FYI,
/John
Disclaimer: my views alone.