DES-3028G:4#show stp instance  0       
Command: show stp instance 0

 STP Instance Settings
 ---------------------------
 Instance Type          : CIST   
 Instance Status        : Enabled
 Instance Priority      : 32768(Bridge Priority : 32768, sys ID ext : 0 )

 STP Instance Operational Status
 --------------------------------
 Designated Root Bridge : 8193 /00-04-DE-18-B4-00
 External Root Cost     : 20000                 
 Regional Root Bridge   : 32768/00-22-B0-67-4B-E9
 Internal Root Cost     : 0                     
 Designated Bridge      : 8193 /00-04-DE-18-B4-00
 Root Port              : 25                     
 Max Age                : 20                     
 Forward Delay          : 15                     
 Last Topology Change   : 452                   
 Topology Changes Count : 3978                 

DES-3028G:4#sh log
8380  2010-12-12 11:05:15 Topology changed (Instance:0 port:25)
8379  2010-12-12 11:03:59 Topology changed (Instance:0 port:25)
8378  2010-12-12 10:59:23 Topology changed (Instance:0 port:25)
8375  2010-12-12 10:49:54 Topology changed (Instance:0 port:25)
8374  2010-12-12 10:48:54 Topology changed (Instance:0 port:25)
8373  2010-12-12 10:48:12 Topology changed (Instance:0 port:25)
8372  2010-12-12 10:47:31 Topology changed (Instance:0 port:25)
8371  2010-12-12 10:46:53 Topology changed (Instance:0 port:25)
8370  2010-12-12 10:46:17 Topology changed (Instance:0 port:25)
8369  2010-12-12 10:45:37 Topology changed (Instance:0 port:25)
8367  2010-12-12 10:42:49 Topology changed (Instance:0 port:25)
8366  2010-12-12 10:41:31 Topology changed (Instance:0 port:25)
8365  2010-12-12 10:38:11 Topology changed (Instance:0 port:25)
8364  2010-12-12 10:27:02 Topology changed (Instance:0 port:25)
8363  2010-12-12 10:25:28 Topology changed (Instance:0 port:25)
8362  2010-12-12 10:23:54 Topology changed (Instance:0 port:25)
8361  2010-12-12 10:14:30 Topology changed (Instance:0 port:25)
8360  2010-12-12 10:10:28 Topology changed (Instance:0 port:25)

enable stp
config stp version stp
config stp maxage 20 maxhops 20 forwarddelay 15 txholdcount 6 fbpdu disable hellotime 2 lbd enable lbd_recover_timer 60
config stp priority 32768 instance_id 0
config stp ports 1 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 1 instance_id 0 internalCost auto priority 128
config stp ports 1 fbpdu enable
config stp ports 1 restricted_role false
config stp ports 1 restricted_tcn false
config stp ports 2 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 2 instance_id 0 internalCost auto priority 128
config stp ports 2 fbpdu enable
config stp ports 2 restricted_role false
config stp ports 2 restricted_tcn false
config stp ports 3 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 3 instance_id 0 internalCost auto priority 128
config stp ports 3 fbpdu enable
config stp ports 3 restricted_role false                                       
config stp ports 3 restricted_tcn false
config stp ports 4 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 4 instance_id 0 internalCost auto priority 128
config stp ports 4 fbpdu enable
config stp ports 4 restricted_role false
config stp ports 4 restricted_tcn false
config stp ports 5 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 5 instance_id 0 internalCost auto priority 128
config stp ports 5 fbpdu enable
config stp ports 5 restricted_role false
config stp ports 5 restricted_tcn false
config stp ports 6 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 6 instance_id 0 internalCost auto priority 128
config stp ports 6 fbpdu enable
config stp ports 6 restricted_role false
config stp ports 6 restricted_tcn false
config stp ports 7 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 7 instance_id 0 internalCost auto priority 128           
config stp ports 7 fbpdu enable
config stp ports 7 restricted_role false
config stp ports 7 restricted_tcn false
config stp ports 8 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 8 instance_id 0 internalCost auto priority 128
config stp ports 8 fbpdu enable
config stp ports 8 restricted_role false
config stp ports 8 restricted_tcn false
config stp ports 9 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 9 instance_id 0 internalCost auto priority 128
config stp ports 9 fbpdu enable
config stp ports 9 restricted_role false
config stp ports 9 restricted_tcn false
config stp ports 10 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 10 instance_id 0 internalCost auto priority 128
config stp ports 10 fbpdu enable
config stp ports 10 restricted_role false
config stp ports 10 restricted_tcn false                                       
config stp ports 11 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 11 instance_id 0 internalCost auto priority 128
config stp ports 11 fbpdu enable
config stp ports 11 restricted_role false
config stp ports 11 restricted_tcn false
config stp ports 12 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 12 instance_id 0 internalCost auto priority 128
config stp ports 12 fbpdu enable
config stp ports 12 restricted_role false
config stp ports 12 restricted_tcn false
config stp ports 13 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 13 instance_id 0 internalCost auto priority 128
config stp ports 13 fbpdu enable
config stp ports 13 restricted_role false
config stp ports 13 restricted_tcn false
config stp ports 14 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 14 instance_id 0 internalCost auto priority 128
config stp ports 14 fbpdu enable                                               
config stp ports 14 restricted_role false
config stp ports 14 restricted_tcn false
config stp ports 15 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 15 instance_id 0 internalCost auto priority 128
config stp ports 15 fbpdu enable
config stp ports 15 restricted_role false
config stp ports 15 restricted_tcn false
config stp ports 16 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 16 instance_id 0 internalCost auto priority 128
config stp ports 16 fbpdu enable
config stp ports 16 restricted_role false
config stp ports 16 restricted_tcn false
config stp ports 17 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 17 instance_id 0 internalCost auto priority 128
config stp ports 17 fbpdu enable
config stp ports 17 restricted_role false
config stp ports 17 restricted_tcn false
config stp ports 18 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 18 instance_id 0 internalCost auto priority 128           
config stp ports 18 fbpdu enable
config stp ports 18 restricted_role false
config stp ports 18 restricted_tcn false
config stp ports 19 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 19 instance_id 0 internalCost auto priority 128
config stp ports 19 fbpdu enable
config stp ports 19 restricted_role false
config stp ports 19 restricted_tcn false
config stp ports 20 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 20 instance_id 0 internalCost auto priority 128
config stp ports 20 fbpdu enable
config stp ports 20 restricted_role false
config stp ports 20 restricted_tcn false
config stp ports 21 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 21 instance_id 0 internalCost auto priority 128
config stp ports 21 fbpdu enable
config stp ports 21 restricted_role false
config stp ports 21 restricted_tcn false                                       
config stp ports 22 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 22 instance_id 0 internalCost auto priority 128
config stp ports 22 fbpdu enable
config stp ports 22 restricted_role false
config stp ports 22 restricted_tcn false
config stp ports 23 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 23 instance_id 0 internalCost auto priority 128
config stp ports 23 fbpdu enable
config stp ports 23 restricted_role false
config stp ports 23 restricted_tcn false
config stp ports 24 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 24 instance_id 0 internalCost auto priority 128
config stp ports 24 fbpdu enable
config stp ports 24 restricted_role false
config stp ports 24 restricted_tcn false
config stp ports 25 externalCost auto edge false p2p auto state enable lbd disable
config stp mst_ports 25 instance_id 0 internalCost auto priority 128
config stp ports 25 fbpdu enable                                               
config stp ports 25 restricted_role false
config stp ports 25 restricted_tcn false
config stp ports 26 externalCost auto edge false p2p auto state enable lbd disable
config stp mst_ports 26 instance_id 0 internalCost auto priority 128
config stp ports 26 fbpdu enable
config stp ports 26 restricted_role false
config stp ports 26 restricted_tcn false
config stp ports 27 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 27 instance_id 0 internalCost auto priority 128
config stp ports 27 fbpdu enable
config stp ports 27 restricted_role false
config stp ports 27 restricted_tcn false
config stp ports 28 externalCost auto edge false p2p auto state disable lbd disable
config stp mst_ports 28 instance_id 0 internalCost auto priority 128
config stp ports 28 fbpdu enable
config stp ports 28 restricted_role false
config stp ports 28 restricted_tcn false
config stp mst_config_id name 00:22:B0:67:4B:E9 revision_level 0

Core#sh run | i spanning
spanning-tree mode pvst
spanning-tree extend system-id
spanning-tree vlan 1 priority 8192

Core#sh spanning-tree summary
Switch is in pvst mode
Root bridge for: VLAN0001, VLAN0003-VLAN0006, VLAN0010-VLAN0011
  VLAN0014-VLAN0098, VLAN0100-VLAN0103, VLAN0105-VLAN0143, VLAN0157, VLAN0166
  VLAN0241, VLAN0251-VLAN0252, VLAN0345, VLAN0358, VLAN0439, VLAN0588
  VLAN0594-VLAN0595, VLAN0599, VLAN0617, VLAN0753, VLAN0772, VLAN0888
  VLAN0891, VLAN0965, VLAN0986, VLAN1000, VLAN1114, VLAN1126-VLAN1131
  VLAN1134, VLAN1144-VLAN1145, VLAN1147-VLAN1149, VLAN1165, VLAN1170-VLAN1171
  VLAN1173, VLAN1180-VLAN1181, VLAN1184, VLAN1187-VLAN1188, VLAN1193
  VLAN1195-VLAN1196, VLAN1198, VLAN1201-VLAN1202, VLAN1218, VLAN1224, VLAN123
  VLAN1239, VLAN1241, VLAN1273, VLAN1277-VLAN1278, VLAN1283, VLAN1292
  VLAN1297, VLAN1302, VLAN1307, VLAN1356, VLAN1408, VLAN1420-VLAN1421
  VLAN1430, VLAN1442, VLAN1449, VLAN1508
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

Name                   Blocking Listening Learning Forwarding STP Active
---------------------- -------- --------- -------- ---------- ----------
VLAN0001                     0         0        0         30         30
VLAN0003                     1         0        0         30         31
VLAN0004                     0         0        0          2          2
VLAN0005                     0         0        0          7          7
VLAN0006                     0         0        0          3          3
VLAN0010                     0         0        0         24         24
VLAN0011                     0         0        0         23         23
VLAN0014                     0         0        0          2          2
VLAN0015                     0         0        0          2          2
VLAN0016                     0         0        0          2          2
VLAN0017                     0         0        0          2          2
VLAN0018                     0         0        0          2          2
VLAN0019                     0         0        0          2          2
VLAN0020                     0         0        0          2          2
VLAN0021                     0         0        0          2          2
VLAN0022                     0         0        0          2          2
VLAN0023                     0         0        0          2          2
VLAN0024                     0         0        0          2          2
VLAN0025                     0         0        0          2          2
VLAN0026                     0         0        0          2          2
VLAN0027                     0         0        0          2          2
VLAN0028                     0         0        0          2          2
VLAN0029                     0         0        0          2          2
VLAN0030                     0         0        0          2          2
VLAN0031                     0         0        0          2          2
VLAN0032                     0         0        0          2          2
VLAN0033                     0         0        0          2          2
VLAN0034                     0         0        0          2          2
VLAN0035                     0         0        0          2          2
VLAN0036                     0         0        0          2          2

interface GigabitEthernet2/3
 switchport
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,3,10,11,45-53,98
 switchport mode trunk
 no ip address
 mls qos vlan-based
!
interface GigabitEthernet3/3
 switchport
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,3,10,11,45-53,98
 switchport mode trunk
 no ip address
 mls qos vlan-based

Boot PROM Version  : Build 1.00.B003
Firmware Version   : Build 1.10.B015

Boot PROM Version  : Build 1.00-B05
Firmware Version   : Build 2.00.B27

config gvrp 25-28 ingress_checking disable