[atlas] Possible reasons behind a failed measurement

Hi Andreas,

Thank you very much for looking into my case.
It was exactly what you've explained.
I launched new  measurements without “IPv6 doesn’t work” tag. And now everything is just right.
Again many thanks for your timely help and accurate indications.

Best regards,
Wenqin

> On 25 Sep 2015, at 17:54, Andreas Strikos <astrikos at ripe.net> wrote:
> 
> Hi,
> 
> from what I see in our database you have specified as excluded tags "IPv6 Works" and " IPv6 Doesn't Work", which are mutually excluded :)
> Besides that, anchors are IPv6 capable so these leaves you with 0 anchros. 
> I guess if you create a new measurement without specifying ""IPv6 Works" in the exclusion tags you will get the anchors you want.
> 
> Regards,
> Andreas Strikos
> Ripe NCC
>  
> 
> On 24/09/15 15:34, Wenqin SHAO wrote:
>> Dear list,
>> 
>> I recently launched a ping measurement that selects 50 anchors worldwide for a period of 24 hours, id  2439518. The measurement failed with no probe allocated to it.
>> Do you have any clue on the possible reasons for that?
>> One of my guesses is that anchors are highly demanded and non of them were available during the measurement window.
>> I’d love to hear you thinkings on this matter.
>> 
>> Many thanks for your attention.
>> 
>> Best regards,
>> Wenqin Shao
>> 
>> ----
>> Ph.D candidate
>> Telecom ParisTech
> 

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