[atlas] Selecting only anchors for UDM

On 2014.06.11. 15:56, Stephane Bortzmeyer wrote:
> On Wed, Jun 11, 2014 at 03:44:48PM +0200,
>  Daniel Karrenberg <daniel.karrenberg at ripe.net> wrote 
>  a message of 11 lines which said:
> 
>> Hence IPV6WORKS. ;-)
> 
> Set how? Pinging a few Anchors and checking that at least N % answers?

Daniel is exposing some info about stuff that we're actually working on, but
we did not announce it yet :-) but yes, the basic idea is that we'll look at
how the probe performed in the last period, and if it had enough success,
we'll consider it capable of doing ipv4/ipv4/dns/whatever. Then use this
knowledge in the measurement scheduler when users want to use those
features. That's a departure from "the probe claims that it can do X so
we'll go with that" -- which is the main theme behind Stephane's article.

We may even have a switch that controls "use probes that think they can do
v6 but it doesn't really work" to check the corner cases. If there's a need
for such thing. (Is that operationally useful? Or research only?)

Cheers,
Robert