30 January, 2014

mac address-table aging-time

SW4(config)#mac address-table aging-time 1000 vlan 10
SW4(config)#exit

SW4#show mac address-table aging-time
Global Aging Time:  300
Vlan    Aging Time
----    ----------
  10    1000

Note: 
the above command sets the aging-time of a dynamically learned MAC address through VLAN 10. If any mac-address learned from VLAN 10 is inactive for longer than 1000 seconds, it will be flushed out of the mac-address-table. By default, an inactive MAC address expires within 300 seconds.