Spanning-Tree Cost - Cisco 4500M Command Reference Manual

Chapter2 Cisco IOS Commands for the Catalyst 4500 Series Switches

spanning-tree cost

To calculate the path cost of STP on an interface, use the spanning-tree cost command. To revert to the
default, use the no form of this command.
Syntax Description
cost
Defaults
The default settings are as follows:
•
•
Command Modes
Interface configuration
Command History Release
12.1(8a)EW
Usage Guidelines
When you configure the cost, higher values indicate higher costs. The range applies regardless of the
protocol type specified. Path cost is calculated, based on interface bandwidth.
Examples
This example shows how to access an interface and set a path cost value of 250 for the spanning tree
VLAN associated with that interface:
Switch(config)# interface fastethernet 2/1
Switch(config-if)# spanning-tree cost 250
Switch(config-if)#
Related Commands
spanning-tree port-priority
spanning-tree portfast default
spanning-tree portfast (interface configuration mode)
spanning-tree uplinkfast
spanning-tree vlan
show spanning-tree
78-16201-01
spanning-tree cost cost
no spanning-tree cost cost
Path cost; valid values are from 1 to 200,000,000.
FastEthernet—19
GigabitEthernet—1
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
spanning-tree cost
2-423