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Catalyst 3750-X and 3560-X Switch Command Reference
OL-21522-02
Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
clear port-security
clear port-security
Use the clear port-security privileged EXEC command on the switch stack or on a standalone switch
to delete from the MAC address table all secure addresses or all secure addresses of a specific type
(configured, dynamic, or sticky) on the switch or on an interface.
clear port-security {all | configured | dynamic | sticky} [[address mac-addr | interface
interface-id] [vlan {vlan-id | {access | voice}}]]
Syntax Description
Defaults No default is defined.
Command Modes Privileged EXEC
Command History
all Delete all secure MAC addresses.
configured Delete configured secure MAC addresses.
dynamic Delete secure MAC addresses auto-learned by hardware.
sticky Delete secure MAC addresses, either auto-learned or configured.
address mac-addr (Optional) Delete the specified dynamic secure MAC address.
interface interface-id (Optional) Delete all the dynamic secure MAC addresses on the specified
physical port or VLAN.
vlan (Optional) Delete the specified secure MAC address from the specified
VLAN. Enter one of these options after you enter the vlan keyword:
• vlan-id—On a trunk port, specify the VLAN ID of the VLAN on which
this address should be cleared.
• access—On an access port, clear the specified secure MAC address on
the access VLAN.
• voice—On an access port, clear the specified secure MAC address on the
voice VLAN.
Note The voice keyword is available only if voice VLAN is configured on
a port and if that port is not the access VLAN.
Release Modification
12.2(53)SE2 This command was introduced.
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