Calico Practicing-2 -- About Calico Networking Option
Our on-premise environment consists of several VLAN(layer 2 network), each VLAN is created by VCenter. Physically, every VLAN is based on several bare metal machines on the same floor, the bare metal machines are connected by ethernet switches. And we have several floors of bare metal machines, they're connected by ToR(Top of Rack) routers(layer 3 network).
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