I am trying to re-arranging VLANs / STP protocol of my switches but I found something that weird.
When I do>> sh spanning-tree root
I can see all of root port of each VLANs.
Weird thing is that VLAN001 is pointing Gi2/0/46 as a root port, but Gi2/0/46 is connected to end device. (Server).
Switch can select the end device as a root port? How?
You could apply spanning-tree bpdufilter enable on the port connecting to the server, but this opens you up to for that port to be potentially used for another switching device, so you need to make sure that doesn't happen