Cisco Systems 3750E manual Assigning a Path Cost, Bridge-group bridge-group path-cost, 44-8

Chapter 44 Configuring Fallback Bridging

Configuring Fallback Bridging

	Command	Purpose
Step 5
	show running-config	Verify your entry.
Step 6
	copy running-config startup-config	(Optional) Save your entry in the configuration file.

To return to the default setting, use the no bridge-groupbridge-grouppriority interface configuration command.

This example shows how to change the priority to 20 on a port in bridge group 10:

Switch(config)# interface gigabitethernet2/0/1

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 Mb/s.

Beginning in privileged EXEC mode, follow these steps to assign a path cost. This procedure is optional.

	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-grouppath-cost	Assign the path cost of a port.
	cost	• 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 Mb/s, the default path cost is 100.
		– For 100 Mb/s, the default path cost is 19.
		– For 1000 Mb/s, 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.

To return to the default path cost, use the no bridge-groupbridge-grouppath-costinterface configuration command.

This example shows how to change the path cost to 20 on a port in bridge group 10:

Switch(config)# interface gigabitethernet2/0/1

Switch(config-if)#bridge-group 10 path-cost 20

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

44-8 OL-9775-02