Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
switchport port-security
• A secure port cannot be a destination port for Switched Port Analyzer (SPAN).
• A secure port cannot belong to a Fast EtherChannel or Gigabit EtherChannel port group.
When a secure port is in the error-disabled state, you can remove it from this state by entering the
errdisable recovery cause psecure-violation global configuration command, or you can manually
re-enable it by entering the shutdown and no shut down interface configuration commands. If a port is
is disabled, you can also use the clear errdisable command to re-enable the offending VLAN on the
port.
To enable secure address aging for a particular port, set the aging time to a value other than 0 for that
port.
To allow limited time access to particular secure addresses, set the aging type as absolute. When the
aging time lapses, the secure addresses are deleted.
To allow continuous access to a limited number of secure addresses, set the aging type as inactivity. This
action removes the secure address when it becomes inactive, and other addresses can become secure.
To allow unlimited access to a secure address, configure it as a secure address, and disable aging for the
statically configured secure address by using the no switchport port-security aging static interface
configuration command.
If the sticky command is executed without a MAC address specified, all MAC addresses that are learned
on that port will be made sticky. You can also specify a specific MAC address to be a sticky address by
entering the sticky keyword next to it.
You can configure the sticky feature even when port security is not enabled on the interface. The feature
becomes operational when you enable port security on the interface.
You can use the no form of the sticky command only if the sticky feature is already enabled on the
interface.
Examples This example shows how to set the aging time to 2 hours (120 minutes) for the secure addresses on the
Fast Ethernet port 12:
Switch(config)# interface fastethernet 0/12
Switch(config-if)# switchport port-security aging time 120
Switch(config-if)#
This example shows how to set the aging timer type to Inactivity for the secure addresses on the Fast
Ethernet port 12:
Switch(config)# interface fastethernet 0/12
Switch(config-if)# switch port-security aging type inactivity
Switch(config-if)#
The following example shows how to configure rate limit for invalid source packets on Fast Ethernet
port 12:
Switch(config)# interface fastethernet 0/12
Switch(config-if)# switchport port-security limit rate invalid-source-mac 100
Switch(config-if)#
The following example shows how to configure rate limit for invalid source packets on Fast Ethernet
port 12:
Switch(config)# interface fastethernet 0/12
Switch(config-if)# switchport port-security limit rate invalid-source-mac none
Switch(config-if)#

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E