Rate limiting ARP Packets
To limit the number of ARP packets the device
will accept each second, enter the rate-limit-arp command
at the global configuration level of the CLI.
device(config)# rate-limit-arp 100
This example configures the device to accept up to 100 ARP packets each second. If the device receives more than 100 ARP packets during a one-second interval, the device drops the additional ARP packets during the remainder of that one-second interval.