Why does Nebula show my core switch is not RSTP root?
Zyxel_Melen
Posts: 3,149 
Zyxel Employee
Zyxel Employee
Nebula default STP bridge priority is 32768 for all switches. This may cause the root bridge is not your core switch due to spanning tree root bridge election mechanism. If you want your core switch to become the root bridge, you can reference this FAQ:
Zyxel Melen
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