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Cisco Catalyst Blade Switch 3030 Command Reference
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Chapter 2 Cisco Catalyst Blade Switch 3030 Cisco IOS Commands
mac address-table aging-time
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.
mac address-table aging-time
{
0
|
10-1000000
} [
vlan
vlan-id
]
no mac address-table aging-time
{
0
|
10-1000000
} [
vlan
vlan-id
]
Syntax Description
Defaults
The default is 300 seconds.
Command Modes
Global configuration
Command History
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
0
This value disables aging. Static address entries are never aged or removed from
the table.
10-1000000
Aging time in seconds. The range is 10 to 1000000 seconds.
vlan
vlan-id
(Optional) Specify the VLAN ID to which to apply the aging time. The range is 1
to 4094.
Release
Modification
12.2(25)SEE
This command was introduced.
Command
Description
show mac address-table aging-time
Displays the MAC address table aging time for all VLANs
or the specified VLAN.