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I'm interested in how OVH made these graphics. Can somebody explain in depth how it all works technically?

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up vote 2 down vote accepted

There's a various network weathermap software out there, it looks like it might use this one:

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Check out

I use a NagVis 1.5 weathermap with Nagios at my site. Cacti+weathermap is a good option too.

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They have a bunch of lines, they get information about how busy they are, they graph them - that's it really.

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