Mac Address-Table Aging-Time - Cisco Catalyst 3030 Command Reference Manual

Chapter 2 Cisco Catalyst Blade Switch 3030 Cisco IOS Commands

mac address-table aging-time

Use the mac address-table aging-time global configuration command to set the length of time that a
dynamic entry remains in the MAC address table after the entry is used or updated. Use the no form of
this command to return to the default setting. The aging time applies to all VLANs or a specified VLAN.
Syntax Description 0
10-1000000
vlan vlan-id
Defaults
The default is 300 seconds.
Command Modes Global configuration
Command History Release
12.2(25)SEE
Usage Guidelines If hosts do not send continuously, increase the aging time to record the dynamic entries for a longer time.
Increasing the time can reduce the possibility of flooding when the hosts send again.
If you do not specify a specific VLAN, this command sets the aging time for all VLANs.
Examples
This example shows how to set the aging time to 200 seconds for all VLANs:
Switch(config)# mac address-table aging-time 200
You can verify your setting by entering the show mac address-table aging-time privileged EXEC
command.
Related Commands Command
show mac address-table aging-time
78-17262-01
mac address-table aging-time {0 | 10-1000000} [vlan vlan-id]
no mac address-table aging-time {0 | 10-1000000} [vlan vlan-id]
This value disables aging. Static address entries are never aged or removed from
the table.
Aging time in seconds. The range is 10 to 1000000 seconds.
(Optional) Specify the VLAN ID to which to apply the aging time. The range is 1
to 4094.
Modification
This command was introduced.
Description
Displays the MAC address table aging time for all VLANs
or the specified VLAN.
Cisco Catalyst Blade Switch 3030 Command Reference
mac address-table aging-time
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