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Catalyst 3550 Multilayer Switch Software Configuration Guide
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Chapter 36 Configuring Fallback Bridging
Configuring Fallback Bridging
No no form of this command exists. To return to the default setting, use the no bridge-group
bridge-group priority interface configuration command.
This example shows how to change the priority of an interface to 20 in bridge group 10:
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# bridge-group 10 priority 20
Assigning a Path Cost
Each interface has a path cost associated with it. By convention, the path cost is 1000/data rate of the
attached LAN, in Mbps.
Beginning in privileged EXEC mode, follow these steps to assign a path cost:
To return to the default path cost, use the no bridge-group bridge-group path-cost interface
configuration command.
This example shows how to change the path cost on an interface to 20 in bridge group 10:
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# bridge-group 10 path-cost 20
Step 5
show running-config Verify your entry.
Step 6
copy running-config startup-config (Optional) Save your entry in the configuration file.
Command Purpose
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface interface-id Enter interface configuration mode, and specify the interface to set the
path cost.
Step 3
bridge-group bridge-group path-cost
cost
Assign the path cost of an interface.
• For bridge-group, specify the bridge group number. The range is 1
to 255.
• For cost, enter a number from 1 to 65536. The higher the value, the
higher the cost.
–
For 10 Mbps, the default path cost is 100.
–
For 100 Mbps, the default path cost is 19.
–
For 1000 Mbps, the default path cost is 4.
Step 4
end Return to privileged EXEC mode.
Step 5
show running-config Verify your entry.
Step 6
copy running-config startup-config (Optional) Save your entry in the configuration file.
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