This is entirely for R&D purposes, not actual production use, for now. But can you run an sdn, say an overlay network for example, across datacenters? I.E. would I be able to run flannel on a single subnet across two datacenters?
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Yeah, with the use of VXLANs. This will allow you to "tunnel" one VLAN or a set of VLANs through a VXLAN. It's exactly like VLAN nesting. – Spooler Feb 16 '17 at 04:58
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Yes, but just remember that you still can't break the speed of light. – Michael Hampton Feb 16 '17 at 05:52