On Jan 30, 2015, at 9:49 PM, Owen DeLong <owen@delong.com> wrote:
On Jan 30, 2015, at 18:07 , William Herrin <bill@herrin.us> wrote: How about this: when Verizon starts decommissioning its IPv4 infrastructure on the basis that IPv6 is widespread enough to no longer require the expense of dual-stack, IPv6 will have achieved ubiquity.
Um, no. The judgment of one traditional telephone company is hardly where I would look to contemplate the future of the internet.
Then AT&T, Comcast, Cox, Level3, etc, could be reasonable examples? I think the general point is worth considering - when v4 gear is regularly being pulled out of commission by large carriers because "who needs it?" and replaced with v6 only gear, we will have achieved true ubiquity. I think you'll see v4 for quite a while. Heck, I still run across SNA, Token Ring, and other really old stuff occasionally... David Barak Sent from a mobile device, please forgive autocorrection.