Cisco Catalyst 3550 Command Reference Manual page 498

switchport port-security aging
To allow unlimited access to a secure address, configure it as a secure address, and disable aging for the
statically configured secure address by using the no switchport port-security aging static interface
configuration command.
Examples
This example sets the aging time as 2 hours for absolute aging for all the secure addresses on Fast
Ethernet interface 0/1.
Switch(config)# interface fastethernet0/1
Switch(config-if)# switchport port-security aging time 120
This example sets the aging time as 2 minutes for inactivity aging type with aging enabled for configured
secure addresses on Fast Ethernet interface 0/2.
Switch(config)# interface fastethernet0/2
Switch(config-if)# switchport port-security aging time 2
Switch(config-if)# switchport port-security aging type inactivity
Switch(config-if)# switchport port-security aging static
This example shows how to disable aging for configured secure addresses.
Switch(config-if)# no switchport port-security aging static
Related Commands Command
show port-security
switchport port-security
Catalyst 3550 Multilayer Switch Command Reference
2-472
Description
Displays the port security settings defined for the port.
Enables port security on a port, restricts the use of the port to a
user-defined group of stations, and configures secure MAC addresses.
Chapter 2 Cisco IOS Commands
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