I am wondering if anyone has come across a validated or design int itself for a collapsed spine/leaf architeture for 2 small interconnected datacenters?
ala what you can see with Juniper here :
Collapsed Spine Fabric Design and Implementation - TechLibrary - Juniper Networks
got a customer whom is not willing to invest in a spine / leaf switches since they belive they are to small for it to done (which is another discussion) but I what am looking for then is a a design which can use a form of collapsed spine leaf, utilized the functionality of overlay ( and underlay) ..and not end up turning to legacy vlan technology .. and hopefully also maybe even be automated a bit through NDO ??