Installation guide

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
How to Configure EtherSwitch HWICs
52
Cisco IOS Release 12.3(8)T4
OL-6454-01
Beginning in privileged EXEC mode, follow these steps to configure the aging time.
SUMMARY STEPS
1. configure terminal
2. bridge bridge-group aging-time seconds
3. end
4. show running-config
5. copy running-config startup-config
DETAILED STEPS
To return to the default aging-time interval, use the no bridge bridge-group aging-time global
configuration command.
Filtering Frames by a Specific MAC Address
A switch examines frames and sends them through the internetwork according to the destination address;
a switch does not forward a frame back to its originating network segment. You can use the software to
configure specific administrative filters that filter frames based on information other than the paths to
their destinations.
You can filter frames with a particular MAC-layer station destination address. Any number of addresses
can be configured in the system without a performance penalty.
Beginning in privileged EXEC mode, follow these steps to filter by the MAC-layer address.
SUMMARY STEPS
1. configure terminal
2. bridge bridge-group address mac-address {forward | discard} [ interface-id ]
3. end
4. show running-config
5. copy running-config startup-config
Command Purpose
Step 1
configure terminal
Enters global configuration mode.
Step 2
bridge bridge-group aging-time
seconds
Specifies the length of time that a dynamic entry remains in the bridge
table from the time the entry was created or last updated.
• For bridge-group, specify the bridge group number. The range is 1
to 255.
• For seconds, enter a number from 0 to 1000000. The default is 300
seconds.
Step 3
end
Returns to privileged EXEC mode.
Step 4
show running-config
Verifies your entry.
Step 5
copy running-config startup-config
(Optional) Saves your entry in the configuration file.