On Mar 13, 2013, at 1:30 AM, Markku Miettinen <[email protected]> wrote:

> Still, it's not IPv6 to blame, but more ignorant developers. It's just too 
> easy to leave things as they are than to add somewhat complex networking 
> logic, even that it would improve service level.

I don't disagree with you in principle, but I have to work with reality. :-)

> If the pool would enable IPv6 for everything I'd bet that pretty much no one 
> would even notice at the user level. Even the tunnels work reliably enough 
> for end user NTP needs. (Excluding the zones with very few IPv6 servers of 
> course, which might get to a real problem, but it's no different than having 
> too little severs in general?)

Many more zones have "too little IPv6 servers" than "too little severs in 
general".

I have some work on my todo to better deal with "too little servers" in 
general, when I've implemented that I can make it also handle IPv6 and setup 
the data appropriately for countries with enough IPv6 servers.

> Additionally to below, the tunnel users won't even start using IPv6 as the OS 
> resolves prefer native IPv4 instead. With native IPv6 one is _very_ unlikely 
> to see any difference if there are enough servers available. He might even 
> get better results with it most of the time.

The NTP Pool users are using all sorts of unusual operating systems, software 
and who knows what – I don't think you can be so sure that they'll all know if 
their IPv6 is tunneled/working/reliable or not.

Obviously long term IPv6 and IPv4 will be on "even footing" in the system; I am 
just explaining why I'm threading very cautiously.

Another problem is that the geo targeting for IPv6 is (still) way way way 
behind the quality of the IPv4 targeting.


Ask

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