Cisco Catalyst 2950 Command Reference

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Catalyst 2950 and Catalyst 2955 Switch Command Reference
OL-10102-01
Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
clear port-security
clear port-security
Use the clear port-security privileged EXEC command to delete from the MAC address table all secure
addresses, all configured secure addresses, or a specific or all dynamic or sticky secure address on an
interface or on the switch.
clear port-security {all | configured | dynamic | sticky} [address mac-address] | [interface
interface-id]
Syntax Description
Defaults No default is defined.
Command Modes Privileged EXEC
Command History
Usage Guidelines If you enter the clear port-security all privileged EXEC command, the switch removes all secure MAC
addresses from the MAC address table.
If you enter the clear port-security configured address mac-address command, the switch removes the
specified secure MAC address from the MAC address table.
If you enter the clear port-security dynamic interface interface-id command, the switch removes all
dynamic secure MAC addresses on an interface from the MAC address table.
If you enter the clear port-security sticky command, the switch removes all sticky secure MAC
addresses from the MAC address table.
Examples This example shows how to remove all secure addresses from the MAC address table:
Switch# clear port-security all
This example shows how to remove a configured secure address from the MAC address table:
Switch# clear port-security configured address 0008.0070.0007
all Delete all secure MAC addresses.
configured Delete all configured secure MAC addresses.
dynamic Delete all dynamic secure MAC addresses.
sticky Delete all sticky secure MAC addresses.
address mac-address (Optional) Delete the specified secure MAC address.
interface interface-id (Optional) Delete secure MAC addresses on the specified physical port or
port channel.
Release Modification
12.1(11)EA1 This command was introduced.
12.1(14)EA1 The all and configured keywords were added.

Cisco Catalyst 2950 Specifications

General

Forwarding Bandwidth	8.8 Gbps
Switching Capacity	13.6 Gbps
Forwarding Rate	6.6 Mpps
Weight	3.6 kg
RAM	16 MB
Flash Memory	8 MB
Operating Humidity	10% to 85% non-condensing
Uplink Ports	2 x 10/100/1000Base-T
Dimensions	4.4 cm x 44.5 cm x 24.2 cm
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Quality of Service (QoS), VLAN support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p
Status Indicators	system
Operating Temperature	0 to 45°C
Ports	24 x 10/100 Ethernet ports
MAC Address Table Size	8, 192 entries
Power Supply	Internal 100-240V AC, 50-60Hz