Cisco HWIC-4ESW - EtherSwitch HWIC Switch User Manual page 32

How to Configure EtherSwitch HWICs
Command or Action
Step 6
end
Example:
Router(config)# end
Step 7
show spanning-tree interface fastethernet
interface-id
Example:
Router# show spanning-tree interface
fastethernet 0/1/6
Configuring Spanning Tree Port Cost
Spanning tree port costs are explained in the following section.
Port cost value calculations are based on the bandwidth of the port. There are two classes of values. Short
(16-bit) values are specified by the IEEE 802.1D specification and range in value from 1 to 65535. Long
(32-bit) values are specified by the IEEE 802.1t specification and range in value from 1 to 200,000,000.
Assigning Short Port Cost Values
You can manually assign port costs in the range of 1 to 65535. Default cost values are listed in
Table 2
Port Speed
10 Mbps
100 Mbps
Assigning Long Port Cost Values
You can manually assign port costs in the range of 1 to 200,000,000. Recommended cost values are listed
in Table
Table 3
Port Speed
10 Mbps
100 Mbps
Follow the steps below to configure the spanning tree port cost of an interface.
SUMMARY STEPS
1.
2.
3.
4.
32
Default Cost Values
Default Cost Value
100
19
3.
Recommended Cost Values
Recommended Value
2,000,000
200,000
enable
configure terminal
interface {ethernet | fastethernet} interface-id
spanning-tree cost port-cost
Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
Purpose
Returns to privileged EXEC mode.
(Optional) Saves your entries in the configuration file.
Recommended Range
200,000 to 20,000,000
20,000 to 2,000,000
Table 2.