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User Guide 424
Configuring Spanning Tree MSTP Configurations
Step 6 show spanning-tree interface [ fastEthernet
port
| gigabitEthernet
port
| ten-
gigabitEthernet
port
| port-channel
lagid
] [ edge | ext-cost | int-cost | mode | p2p | priority |
role | state | status ]
(Optional) View the information of all ports or a specified port.
port:
Specify the port number.
lagid:
Specify the ID of the LAG.
ext-cost | int-cost | mode | p2p | priority | role | state | status: Display the specified information.
Step 7 end
Return to privileged EXEC mode.
Step 8 copy running-config startup-config
Save the settings in the configuration file.
This example shows how to enable spanning tree function for port 1/0/3 and configure the
port priority as 32 :
Switch#configure
Switch(config)#interface gigabitEthernet 1/0/3
Switch(config-if)#spanning-tree
Switch(config-if)#spanning-tree common-config port-priority 32
Switch(config-if)#show spanning-tree interface gigabitEthernet 1/0/3
MST-Instance 0 (CIST)
Interface State Prio Ext-Cost Int-Cost Edge P2p Mode Role Status
----------- -------- ---- -------- -------- ---- --------- ----- ------- --------
Gi1/0/3 Enable 32 Auto Auto No No(auto) N/A N/A LnkDwn
MST-Instance 5
Interface Prio Cost Role Status
----------- ------------ -------- ---------
Gi1/0/3 144 200 N/A LnkDwn
Switch(config-if)#end
Switch#copy running-config startup-config
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