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Chapter 20
Configuring Optional Spanning-Tree Features
Command
Step 3
spanning-tree loopguard default
Step 4
end
Step 5
show running-config
Step 6
copy running-config startup-config
To globally disable loop guard, use the no spanning-tree loopguard default global configuration
command. You can override the setting of the no spanning-tree loopguard default global configuration
command by using the spanning-tree guard loop interface configuration command.
Displaying the Spanning-Tree Status
To display the spanning-tree status, use one or more of the privileged EXEC commands in
Table 20-2
Commands for Displaying the Spanning-Tree Status
Command
show spanning-tree active
show spanning-tree detail
show spanning-tree interface interface-id
show spanning-tree mst interface interface-id
show spanning-tree summary [totals]
You can clear spanning-tree counters by using the clear spanning-tree [interface interface-id]
privileged EXEC command.
For information about other keywords for the show spanning-tree privileged EXEC command, see the
command reference for this release.
OL-13270-06
Purpose
Enable loop guard.
By default, loop guard is disabled.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Purpose
Displays spanning-tree information on active interfaces only.
Displays a detailed summary of interface information.
Displays spanning-tree information for the specified interface.
Displays MST information for the specified interface.
Displays a summary of interface states or displays the total lines of the
spanning-tree state section.
Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide
Displaying the Spanning-Tree Status
Table
20-19
20-2:
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