Switchport Port-Security Aging - Cisco Catalyst 2950 Command Reference Manual

switchport port-security aging

switchport port-security aging
Use the switchport port-security aging interface configuration command to set the aging time and type
for secure address entries or to change the aging behavior for statically configured secure addresses on
a particular port. Use the no form of this command to disable port security aging or to return to the
default settings.
Syntax Description static
time time
type {absolute | inactivity}
Defaults The port security aging feature is disabled. The default time is 0 minutes.
The default aging type is absolute.
The default static aging behavior is disabled.
Command Modes
Interface configuration
Command History Release
12.1(9)EA1
Usage Guidelines
To enable secure address aging for a particular port, set the port aging time to a value other than 0.
To allow limited-time access to specific secure MAC addresses, set the aging type as absolute. When
the device sends traffic again, the deleted secure addresses are relearned.
Note The absolute aging time could vary by 1 minute, depending on the sequence of the system timer.
To allow continuous access to a limited number of secure addresses, set the aging type as inactivity.
This removes the secure address when it becomes inactive, and other addresses can become secure.
Catalyst 2950 and Catalyst 2955 Switch Command Reference
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switchport port-security aging {static | time time | type {absolute | inactivity}}
no switchport port-security aging {static | time | type}
Modification
This command was introduced.
Chapter 2
Enable aging for statically configured secure addresses on this port.
Specify the aging time for this port. The range is 0 to 1440 minutes. If
the time is 0, aging is disabled for this port.
Sets the type of aging. The keywords have these meanings:
absolute—Set the aging type as absolute aging. All the secure
addresses on this port age out after the time (minutes) specified and are
removed from the secure address list.
inactivity—Set the aging type as inactivity aging. The secure addresses
on this port age out only if there is no data traffic from the secure source
address for the specified time period.
Catalyst 2950 and 2955 Cisco IOS Commands
0L-10102-01