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Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
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Chapter 6 Configuring the System
Configuring STP
Changing the STP Implementation
Beginning in privileged EXEC mode, follow these steps to change the STP
implementation. The stp-list is the list of VLANs to which the STP command
applies.
Changing the Switch Priority
Beginning in privileged EXEC mode, follow these steps to change the switch
priority and affect which switch is the root switch. The stp-list is the list of
VLANs to which the STP command applies.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
spanning-tree [vlan stp-list]
protocol {ieee | ibm}
Specify the STP implementation to be used for a
spanning-tree instance.
Step 3
end Return to privileged EXEC mode.
Step 4
show spanning-tree Verify your entry.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
spanning-tree [vlan stp-list]
priority bridge-priority
Configure the switch priority for the specified
spanning-tree instance.
Enter a number from 0 to 65535; the lower the number, the
more likely the switch will be chosen as the root switch.
Step 3
end Return to privileged EXEC mode.
Step 4
show spanning-tree Verify your entry.
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