Example 137 Verifying STP Uplink Fast and Backbone Fast

3550_switch#show spanning-tree summary

Root Bridge for: VLAN0010, VLAN0100. Extended system ID is enabled. PortFast BPDU Guard is disabled

EtherChannel misconfiguration guard is enabled

UplinkFast is enabled

BackboneFast is enabled

Default pathcost method used is short

Name Blocking Listening Learning Forwarding STP Active

VLAN0001 1 0 0 4 5

VLAN0010 0 0 0 1 1

Station update rate set to 150 packets/sec. UplinkFast statistics

Number of transitions via uplinkFast (all VLANs) : 2

Number of proxy multicast addresses transmitted (all VLANs) : 0 BackboneFast statistics

Number of transition via backboneFast (all VLANs) : 0

Number of inferior BPDUs received (all VLANs) : 0

Number of RLQ request PDUs received (all VLANs) : 0

Number of RLQ response PDUs received (all VLANs) : 0

Number of RLQ request PDUs sent (all VLANs) : 0

Number of RLQ response PDUs sent (all VLANs) : 0 3550 switch#

0 0

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