[ipv6-wg at ripe.net] Re: [lir-wg] IXP networks routing

>>> Let me put it this way, what services do the IXP operators run 
>>> outside
>>> the mesh that absolutely requires IPv6 space and is considered
>>> "critical", from the perspective of requiring globally routable 
>>> space?
>>> I
>>
>> TLD DNS hosting comes to mind.
>
> Why?
>
> I know that this has surfaced on the last RIPE meeting already, but I 
> still
> think that a TLD name server is in no way special - it's IP address can
> be resolved by querying the root, so it doesn't need to have a fixed IP
> address "forever".  If the address changes (which of course should not
> happen every couple of weeks) change the glue record in the root, and
> that's it.

Although I agree with you, reality is not always that simple. An 
advantage with locating a TLD DNS server at a IX point is that you have 
a easy way to get access to a large amount of carriers. We for example 
get transit from all members. If we today are to provide IPv6 
connectivity, we are using the IPv6 space of our upstream provider. 
This forces us to rely on their routing policies, which might not be 
good from a "best for the Internet" view.

This said, the reason why we are having this debate at all is the fact 
that we don't have a PI mechanism, that said the reason we do not have 
a PI mechanism is the fact that IPv6 does not solve some of the largest 
problems on the Internet today. But that is a different discussion and 
I getting enough mail  on other lists...:)

So - yes I agree with you, however this might lead to other unwanted 
problems.

Best regards,

- kurtis -