Interfaces | 407
• Link dampening can be applied to Layer 2 and Layer 3 interfaces.
• Link dampening can be configured on individual interfaces in a LAG.
Enable Link Dampening
Enable link dampening using the command dampening from INTERFACE mode, as shown in
Figure 19-28.
Figure 19-28. Configuring Link Dampening
View the link dampening configuration on an interface using the command show config, or view
dampening information on all or specific dampened interfaces using the command
show interfaces
dampening
from EXEC Privilege mode, as shown in Figure 19-29.
Figure 19-29. Viewing all Dampened Interfaces
View a dampening summary for the entire system using the command show interfaces dampening
summary from EXEC Privilege mode, as shown in Figure 19-30.
Figure 19-30. Viewing a System-wide Dampening Summary
Clear Dampening Counters
Clear dampening counters and accumulated penalties using the command clear dampening, as shown in
Figure 19-31.
R1(conf-if-gi-1/1)#show config
!
interface GigabitEthernet 1/1
ip address 10.10.19.1/24
dampening 1 2 3 4
no shutdown
R1(conf-if-gi-1/1)#exit
FTOS# show interfaces dampening
InterfaceState Flaps Penalty Half-LifeReuse SuppressMax-Sup
Gi 0/0 Up 0 0 5 750 2500 20
Gi 0/1 Up 2 1200 20 500 1500 300
Gi 0/2 Down 4 850 30 600 2000 120
FTOS# show interfaces dampening summary
20 interfaces are configured with dampening. 3 interfaces are currently suppressed.
Following interfaces are currently suppressed:
Gi 0/2
Gi 3/1
Gi 4/2
FTOS#