arp-miss anti-attack rate-limit alarm enable
Function
The arp-miss anti-attack rate-limit alarm enable command enables the alarm function for ARP Miss messages discarded when the rate of ARP Miss messages exceeds the limit.
The undo arp-miss anti-attack rate-limit alarm enable command disables the alarm function for ARP Miss messages discarded when the rate of ARP Miss messages exceeds the limit.
By default, the alarm function is disabled.
Format
arp-miss anti-attack rate-limit alarm enable
undo arp-miss anti-attack rate-limit alarm enable
Usage Guidelines
Usage Scenario
After rate limit on ARP Miss messages is enabled, if you want that the device can generate alarms to notify the network administrator of a large number of discarded excess ARP Miss messages, run the arp-miss anti-attack rate-limit alarm enable command. When the number of discarded ARP Miss messages exceeds the alarm threshold, the device generates an alarm.
You can set the alarm threshold using the arp-miss anti-attack rate-limit alarm threshold command.
Prerequisites
Rate limit on ARP Miss messages has been enabled using the arp-miss anti-attack rate-limit enable command.
Precautions
After the arp-miss anti-attack rate-limit alarm enable command is run, you need to run the arp anti-attack log-trap-timer time command to set the interval for sending alarms.
