nanog mailing list archives

Re: No IPv6 by design to increase reliability...


From: Owen DeLong <owen () delong com>
Date: Thu, 17 Jan 2019 14:17:46 -0800



On Jan 17, 2019, at 12:40 PM, John Levine <johnl () iecc com> wrote:

In article <39BFCD05-62CB-46C7-83E6-0CC25D393137 () delong com> you write:
If v6 were such a problem as described, I think it wouldn’t be so readily embraced by facebook, google, Comcast, 
Netflix, etc. 

Their priorities are probably not your priorities.  For example, I
expect they want to be able to distinguish among the devices behind a
v4 NAT so they can segment and market more precisely.

That’s already relatively easy to do through other mechanisms (cookies anyone).

Having had in depth conversations with the people running those networks, I can assure you that a number of their 
priorities are in line with mine: a stable, functional internet that can accommodate existing users and scale for a 
workable future.

That simply isn’t possible in IPv4. It hasn’t been for years. IPv4 continues to degrade. Eventually it will reach a 
point where the problems are so obvious that they can no longer be ignored by the laggards that still haven’t 
implemented IPv6.

One of several things will eventually resolve that issue:

        1.      The remaining content providers failing to support IPv6 become sufficiently insignificant that ISPs 
turning off
                IPv4 will consider the revenue lost by losing customers that care to be significantly less than the 
cost to continue
                supporting IPv4 for those customers.

        2.      Enough eyeball ISPs will begin charging a premium for IPv4 services to cover the growing cost of 
maintaining this
                backwards compatibility that it drives a user revolt against the sites described in the previous 
paragraph, thus
                accelerating situation 1 above.

        3.      A sufficient critical mass of eyeballs are connected to IPv6 only networks that don’t offer IPv4 
backwards compatibility
                that the content providers that fail to support them recognize significant revenue drop.

I suspect that the most likely scenario will be 2 accelerating 1, but it could play out in any of the above ways.

Bottom line is that anyone still supporting IPv4 only is basically running on a toxic-polluter business model depending 
on everyone else to cover the growing costs of the mess they are making of the current internet.

Owen


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