Cisco Catalyst 2950 Command Reference

2-500
Catalyst 2950 and Catalyst 2955 Switch Command Reference
0L-10102-01
Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands
switchport port-security
switchport port-security
Use the switchport port-security interface configuration command without keywords to enable port
security on an interface. Use the keywords to configure secure MAC addresses, a maximum number of
secure MAC addresses, or the violation mode. Use the no form of this command to disable port security
or to return to the default settings.
switchport port-security [mac-address mac-address] | [mac-address sticky [mac-address]] |
[maximum value] | [violation {protect | restrict | shutdown}]
no switchport port-security [mac-address mac-address] | [mac-address sticky [mac-address]] |
[maximum value] | [violation {protect | restrict | shutdown}]
Syntax Description mac-address mac-address (Optional) Specify a secure MAC address for the port by entering a
48-bit MAC address. You can add additional secure MAC addresses up
to the maximum value configured.
mac-address sticky
[mac-address]
(Optional) Enable the interface for sticky learning by entering only the
mac-address sticky keywords. When sticky learning is enabled, the
interface adds all secure MAC addresses that are dynamically learned
to the running configuration and converts these addresses to sticky
secure MAC addresses.
Specify a sticky secure MAC address by entering the mac-address
sticky mac-address keywords.
Note Although you can specify a sticky secure MAC address by
entering the mac-address sticky mac-address keywords, we
recommend using the mac-address mac-address interface
configuration command to enter static secure MAC addresses.
maximum value (Optional) Set the maximum number of secure MAC addresses for the
interface. The range is 1 to 132. The default is 1.
violation (Optional) Set the security violation mode or the action to be taken if
port security is violated. The default is shutdown.
protect (Optional) Set the security violation protect mode. When the number of
secure MAC addresses reaches the limit allowed on the port, packets
with unknown source addresses are dropped until you remove a
sufficient number of secure MAC addresses or increase the number of
maximum allowable addresses. You are not notified that a security
violation has occurred.

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