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View
System view
Default level
2: System level
Parameters
None
Description
Use the arp source-suppression enable command to enable the ARP source suppression function.
Use the undo arp source-suppression enable command to disable the function.
By default, the ARP source suppression function is disabled.
Related commands: display arp source-suppression.
Examples
# Enable the ARP source suppression function.
<Sysname> system-view
[Sysname] arp source-suppression enable
arp source-suppression limit
Syntax
arp source-suppression limit limit-value
undo arp source-suppression limit
View
System view
Default level
2: System level
Parameters
limit-value: Specifies the maximum number of packets with the same source IP address but unresolvable
destination IP addresses that the device can receive in five seconds. It ranges from 2 to 1024.
Description
Use the arp source-suppression limit command to set the maximum number of packets with the same
source IP address but unresolvable destination IP addresses that the device can receive in five seconds.
Use the undo arp source-suppression limit command to restore the default value, which is 10.
With this feature configured, whenever the number of packets with unresolvable destination IP addresses
from a host within five seconds exceeds the specified threshold, the device suppresses the sending host
from triggering any ARP requests within the following five seconds.
Related commands: display arp source-suppression.
Examples
# Set the maximum number of packets with the same source address but unresolvable destination IP
addresses that the device can receive in five seconds to 100.
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