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I use only 2 servers hosted with OVH. I see the problem here but there is no way to avoid it. Monitoring 37 providers will result in multiple "same DC" problems. I plan to solve this problem by keep adding new locations with different datacenters. The more locations I have the less impact this kind of issues will have.

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If you provide the "same DC" information, this helps making the right decision. Maybe you can exclude the "same DC" results or offer an option to filter them out. This of course reduces the number of probes for the given provider, but maybe no probes is better than a too good to be true probe.

This! If you have dc-info, you can ignore intra-dc lookups.

I simply cant know what DCs are used by the providers that I monitor. So I have no idea where we share datacenters. What happens if they change DCs? I would need to constantly monitor their infrastructure. Filtering out would be too hard and pretty useless.

By simply adding more locations I fix the problem, add more data and simplify the whole process.

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