Command Reference IP Event Dampening Commands
6 IP Event Dampening Commands
6.1 dampening
Use this command to enable the IP event dampening function on the interface. Use the no or default
form of this command to disable this function.
dampening [ half-life-period [ reuse-threshold suppress-threshold max-suppress [ restart
[ restart-penalty ] ] ] ]
Configures the half-life period of suppression penalty. The range is
from 1 to 30. The unit is seconds. The default value is 5 seconds.
Configures the penalty threshold to unsuppress the interface. The
range is from 1 to 20,000. The default value is 1,000.
Configures the penalty threshold to suppress the interface. The range
is from 1 to 20,000. The default value is 2,000.
Configures the maximum suppress time. The range is from 1 to 255.
The default value is 4 times of the half-life-period.
Configures the initial penalty value on the interface. The range is from
1 to 20,000. The default value is 2,000.
IP event dampening is disabled by default.
Interface configuration mode.
This function will influence the modules of the directly-connected/host route, static route, dynamic
route and VRRP. If one interface meets the configuration condition of this command, which is in the
suppression status, the above influenced modules consider the status of this interface as DOWN, so
as to delete the corresponding route and not transcieve the data packets on this interface.
Re-configuring the dampening command on the interface that has been configured this command
makes all dampening information on this interface cleared. However, the interface flapping times will
be remained unless use the clear counters command to clear the statistical information of the
interface.
The following example configures the IP event dampening function.
Ruijie(config)#interface gigabitEthernet 0/1
Ruijie(config-if-GigabitEthernet 0/1)# no switchport
Ruijie(config-if-GigabitEthernet 0/1)# dampening 30 1500 10000 100
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