Procedure
Enter system view.
system-view
Enable source MAC-based ARP attack detection and specify the handling method.
arp source-mac { filter | monitor }
By default, this feature is disabled.
Set the threshold.
arp source-mac threshold threshold-value
The threshold is 30.
Set the aging timer for ARP attack entries.
arp source-mac aging-time time
By default, the lifetime is 300 seconds.
(Optional.) Exclude specific MAC addresses from this detection.
arp source-mac exclude-mac mac-address&<1-n>
By default, no MAC address is excluded.