Installation guide

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
How to Configure EtherSwitch HWICs
56
Cisco IOS Release 12.3(8)T4
OL-6454-01
DETAILED STEPS
To return to the default path cost, use the no bridge-group bridge-group path-cost cost interface
configuration command.
Adjusting BPDU Intervals
You can adjust BPDU intervals as described in these sections:
• Adjusting the Interval between Hello BPDUs, page 56
• Changing the Forward-Delay Interval, page 57
• Changing the Maximum-Idle Interval, page 58
Note Each switch in a spanning tree adopts the interval between hello BPDUs, the forward delay interval,
and the maximum idle interval parameters of the root switch, regardless of what its individual
configuration might be.
Adjusting the Interval between Hello BPDUs
Beginning in privileged EXEC mode, follow these step to adjust the interval between hello BPDUs.
SUMMARY STEPS
1. configure terminal
2. bridge bridge-group hello-time seconds
3. end
4. show running-config
5. copy running-config startup-config
Command Purpose
Step 1
configure terminal
Enters global configuration mode.
Step 2
interface interface-id
Enters interface configuration mode, and specify the interface to set the
path cost.
Step 3
bridge-group bridge-group path-cost
cost
Assigns 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
Returns to privileged EXEC mode.
Step 5
show running-config
Verifies your entry.
Step 6
copy running-config startup-config
(Optional) Saves your entry in the configuration file.