390 Configuring and managing spanning tree protocolNN47250-500 (320657-F Version 02.01)13 up down auto network 10/100BaseTx14 up down auto network 10/100BaseTx15 up down auto network 10/100BaseTx16 up down auto network 10/100BaseTx17 up down auto network 10/100BaseTx18 up down auto network 10/100BaseTx19 up down auto network 10/100BaseTx20 up down auto network 10/100BaseTx21 up up auto 1000/full network22 up up auto 1000/full network5 Wait for STP to complete the listening and learning stages and converge, then verify that STP is operatingproperly and blocking one of the ports in the backbone VLAN. Type the following command:WSS# show spantree vlan 10VLAN 10Spanning tree mode PVST+Spanning tree type IEEESpanning tree enabledDesignated Root 00-0b-0e-00-04-0cDesignated Root Priority 32768Designated Root Path Cost 0We are the rootRoot Max Age 20 sec Hello Time 2 sec Forward Delay 15 secBridge ID MAC ADDR 00-0b-0e-00-04-0cBridge ID Priority 32768Bridge Max Age 20 sec Hello Time 2 sec Forward Delay 15 secPort Vlan STP-State Cost Prio Portfast------- ------- ----------- ----- ----- --------21 10 Forwarding 4 128 Disabled22 10 Blocking 4 128 Disabled6 Save the configuration. Type the following command:WSS# save configsuccess: configuration saved.