Lab 9. STP Features : Root Guard

SW-2

SW2(config)#spanning-tree vlan 1 root primary

SW2(config)#int e0/0

SW2(config-if)#spanning-tree guard root 

SW-1

SW1(config)#spanning-tree vlan 1 priority 4096 

SW-2

SW-2(config)#do show spanning-tree inconsistent

Name                 Interface             Inconsistency

-------------------- ------------------------ ------------------

VLAN0001      Ethernet0/0         Root Inconsistent

Number of inconsistent ports (segments) in the system : 1