Cisco Catalyst 4500 Series Configuration Manual page 1099

Chapter 2
The following example shows the spanning tree summary when the switch is not in MSTP mode, that is,
the switch is in PVST or Rapid-PVST mode. The output string displays the current STP mode:
Related Commands Command
spanning-tree mst simulate pvst
(interface configuration mode)
show spanning-tree
Switch# show spanning-tree summary
Switch is in rapid-pvst mode
Root bridge for: VLAN0001, VLAN2001-VLAN2002
EtherChannel misconfig guard is enabled
Extended system ID is enabled
Portfast Default is disabled
PortFast BPDU Guard Default is disabled
Portfast BPDU Filter Default is disabled
Loopguard Default is disabled
UplinkFast is disabled
BackboneFast is disabled
Pathcost method used is short
PVST Simulation Default is enabled but inactive in rapid-pvst mode
Name Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
VLAN0001 2 0 0 0 2
VLAN2001 2 0 0 0 2
VLAN2002 2 0 0 0 2
---------------------- -------- --------- -------- ---------- ----------
3 vlans 6 0 0 0 6
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release XE 3.9.xE and 15.2(5)Ex
spanning-tree mst simulate pvst global
Description
Enables PVST+ simulation on a port.
Displays spanning-tree state information.
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