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The Root Bridge of VLAN 20 needs to be verified. Which command displays information about this particular Root Bridge?
show spanning-tree vlan 20
show running-config
show vlan 20 spanning-tree
show vlan 20 root
To display the STP information for a specific vlan, use the command "show spanning-tree vlan []" and to specific the information for the root of that vlan, add the keyword "root" at the end of the command.
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