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Cisco ME 3800X and ME 3600X Switch Command Reference
OL-28238-01
Chapter 2 Cisco ME 3800X and ME 3600X Switch Cisco IOS Commands
mac address-table aging-time
mac address-table aging-time
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 mac address-table aging-time command in global configuration mode. To return to
the default setting, use the no form of this command. The aging time applies to all VLANs or a specified
VLAN.
mac address-table aging-time {0 | 10-1000000}[bridge-domain domain-id | routed-mac | vlan
vlan-id]
no mac address-table aging-time {0 | 10-1000000} [bridge-domain vlan-id | routed-mac | vlan
vlan-id]
Syntax DescriptionI
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 and bridge
domains.
You can verify your setting by entering the show mac address-table aging-time privileged EXEC
command.
Examples This example shows how to set the aging time to 200 seconds for all VLANs and bridge domains:
Switch(config)# mac address-table aging-time 200
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.
bridge-domain
domain-id
(Optional) Specifies a bridge domain to which to apply the aging time. The bridge
domain ID range is from 1 to 8000.
routed-mac (Optional) Specifies applying the aging time to routed MAC addresses.
vlan vlan-id (Optional) Specifies the VLAN ID to which to apply the aging time. The range is
1 to 4094.
Release Modification
12.2(52)EY This command was introduced.
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