Dell MX9116n EMC SmartFabric OS10 User Guide Release 10.5.1 - Page 1192

To enable port security on an interface: 1. Enter the following command in INTERFACE mode: switchport port-security 2. Enable port security in CONFIGURATION-PORT-SECURITY mode: no disable NOTE: To disable the port security feature on an interface, use the disable command in CONFIGURATION-PORTSECURITY mode. Configure the MAC address learning limit After you enable port security on an interface, the interface can learn one secure MAC address by default. This limit is applicable for both secure dynamic and secure static MAC addresses. To configure the MAC address learning limit: 1. Enter the following command in INTERFACE mode: switchport port-security 2. Configure the number of secure MAC addresses that an interface can learn in INTERFACE PORT SECURITY mode: mac-learn {limit | no-limit} For the limit keyword, the range is from 0 to 3072. To enable the interface to learn the maximum number of MAC addresses that the hardware supports, use the no-limit keyword. MAC address learning limit example OS10# configure terminal OS10(config)#interface ethernet 1/1/1 OS10(config-if-eth1/1/1)#switchport port-security OS10(config-if-port-sec)# no disable OS10(config-if-port-sec)#mac-learn limit 100 Configure MAC address learning limit violation actions Use the following commands in INTERFACE PORT SECURITY mode: ● To display which MAC address causes a violation, use the log option. The system also drops the packet. OS10(config-if-port-sec)#mac-learn limit violation log ● To drop the packet when a MAC address learning limit violation occurs, use the drop option. OS10(config-if-port-sec)#mac-learn limit violation drop ● To forward the packet when a MAC address learning limit violation occurs, use the flood option. The system does not learn the MAC address. OS10(config-if-port-sec)#mac-learn limit violation forward ● To shut down an interface on a MAC address learning limit violation, use the shutdown option. OS10(config-if-port-sec)#mac-learn limit violation shutdown MAC address learning limit violation actions configuration example OS10# configure terminal OS10(config)#interface ethernet 1/1/1 OS10(config-if-eth1/1/1)#switchport port-security OS10(config-if-port-sec)#no disable OS10(config-if-port-sec)#mac-learn limit 100 OS10(config-if-port-sec)#mac-learn limit violation shutdown Configure sticky MAC addresses 1192 Security