Re: Votes against what? [ draft-arkko-ipv6-transition-guidelines WGLC]

[Fred Baker <fred@cisco.com>]

On Aug 20, 2010, at 9:11 PM, Randy Bush wrote:

>> Actually they are votes
> 
> there are?  votes?  i thought we had discussions on the merits of
> various engineering approaches.

These aren't IETF votes, Randy. These are network operators voting with their hard-earned cash on how to deploy.

There are of course those that are not deploying. There is not much to be said about them other than that.

People that are doing green field networks may be implementing IPv6-only. I have heard several mobile operators suggest it, and I know one that has. I know of one research network, CERNET2, that has also done so.

Those that have existing IPv4 networks, to my knowledge, are not first shutting down their IPv4 networks and then bringing up IPv6; they are bringing ip IPv6 in the IPv4 networks.

You would be a well-placed party to observe on this. What incidence have you seen of IPv6-only deployment, and what incidence have you seen of IPv6 being deployed in existing IPv4 networks?