The place I work has several buildings on campus with one switch per building going back to a central router. Each building has it's own VLAN but there are also campus wide VLAN's like Wifi, Security, etc.
My understanding was that routers break off broadcast domains and so a VLAN cannot extend to multiple ports of the same router and yet this appears to be how this network is configured.
I'm working in Packet Tracer to try to reproduce this topology.
Can someone explain to me how this might be working?
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