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Catalyst 3560 Switch Software Configuration Guide
78-16156-01
Chapter 34 Configuring Fallback Bridging
Configuring Fallback Bridging
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 to 20 on a port in bridge group 10:
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# bridge-group 10 priority 20
Assigning a Path Cost
Each port 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. This procedure is optional.
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 to 20 on a port 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 Specify the port to set the path cost, and enter interface configuration
mode.
Step 3
bridge-group bridge-group path-cost
cost
Assign the path cost of a port.
• For bridge-group, specify the bridge group number. The range is 1
to 255.
• For cost, enter a number from 0 to 65535. 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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