Switchport

bencmcb

what does the command "switchport port-security" do when typed in interface mode without any other parameters?

Is this necessary to enable port-security or can you just type the command with the parameters and not include "switchport port-security"

SteveO86

You must type the command as required by the IOS. You can abbreviates the command like any other command but you can't leave out the switchport keyword.

Catalyst 4500 Series Switch Cisco IOS Command Reference, 12.2(31)SGA - snmp ifindex clear through vtp v2-mode [Cisco Catalyst 4500 Series Switches] - Cisco Systems

When port security is enabled and no keywords are entered, the default maximum number of secure MAC addresses is 1.