Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
If a switch does not hear BPDUs from the root switch within a specified interval, it recomputes the
spanning-tree topology.
Follow the steps below to change the maximum-idle interval (maximum aging time).
SUMMARY STEPS
1.
2.
3.
4.
5.
6.
DETAILED STEPS
Command or Action
Step 1
enable
Example:
Router> enable
Step 2
configure terminal
Example:
Router# configure terminal
Step 3
bridge bridge-group max-age seconds
Example:
Router(config)# bridge 100
forward-time 25
Step 4
end
Example:
Router(config)# end
Step 5
show running-config
Example:
Router# show running-config
Step 6
copy running-config startup-config
Example:
Router# copy running-config
startup-config
Disabling the Spanning Tree on an Interface
enable
configure terminal
bridge bridge-group max-age seconds
end
show running-config
copy running-config startup-config
Purpose
Enables privileged EXEC mode.
•
Enter your password if prompted.
Enters global configuration mode.
Specifies the interval the switch waits to hear BPDUs from the root
switch.
For bridge-group, specify the bridge group number. The range is 1
•
to 255.
For seconds, enter a number from 10 to 200. The default is 30
•
seconds.
Returns to privileged EXEC mode.
(Optional) Verifies your entry.
(Optional) Saves your entry in the configuration file.
How to Configure EtherSwitch HWICs
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