Administrator Guide

NOTE: Alternatively, you can reset the interface by shutting it down using the shutdown command and then re-enabling
it using the no shutdown command.
• Reset interfaces in the ERR_Disabled state caused by a learning limit violation or station move violation.
EXEC Privilege mode
mac learning-limit reset
• Reset interfaces in the ERR_Disabled state caused by a learning limit violation.
EXEC Privilege mode
mac learning-limit reset learn-limit-violation [interface | all]
• Reset interfaces in the ERR_Disabled state caused by a station move violation.
EXEC Privilege mode
mac learning-limit reset station-move-violation [interface | all]
Disabling MAC Address Learning on the System
You can configure the system to not learn MAC addresses from LACP and LLDP BPDUs.
To disable source MAC address learning from LACP and LLDP BPDUs, follow this procedure:
• Disable source MAC address learning from LACP BPDUs.
CONFIGURATION mode
mac-address-table disable-learning lacp
• Disable source MAC address learning from LLDP BPDUs.
CONFIGURATION mode
mac-address-table disable-learning lldp
• Disable source MAC address learning from LACP and LLDP BPDUs.
CONFIGURATION mode
mac-address-table disable-learning
If you don’t use any option, the mac-address-table disable-learning command disables source MAC address learning from
both LACP and LLDP BPDUs.
Enabling port security
You can enable or disable port security feature globally on the Dell EMC Networking OS.
You can configure all the MAC address learning limit configurations, only if the port security is enabled on the Dell EMC Networking OS. If
the port security feature is disabled, all the interface level configurations are reset and all dynamically learnt MAC addresses on the
interfaces configured with MAC address learning limit are cleared.
To enable the port security feature globally in the system, use the following command.
• Enable the port security feature.
CONFIGURATION mode
mac port-security
NIC Teaming
NIC teaming is a feature that allows multiple network interface cards in a server to be represented by one MAC address and one IP
address in order to provide transparent redundancy, balancing, and to fully utilize network adapter resources.
The following illustration shows a topology where two NICs have been teamed together. In this case, if the primary NIC fails, traffic
switches to the secondary NIC because they are represented by the same set of addresses.
422
Layer 2