Cisco Catalyst 3120 Command Reference Manual page 601

Chapter 2 Cisco Catalyst Blade Switch 3120 for HP Cisco IOS Commands
Related Commands Command
clear port-security
switchport port-security
OL-12248-01
Description
Deletes from the MAC address table a specific type of secure address
or all the secure addresses on the switch or an interface.
Enables port security on a port, restricts the use of the port to a
user-defined group of stations, and configures secure MAC
addresses.
Cisco Catalyst Blade Switch 3120 for HP Command Reference
show port-security
2-573