What action will fix the issue?

Refer to the exhibit.

R1 is connected with R2 via GigabitEthernet0/0, and R2 cannot ping R1.

What action will fix the issue?
A . Fix route dampening configured on the router.
B . Replace the SFP module because it is not supported.
C . Fix IP Event Dampening configured on the interface.
D . Correct the IP SLA probe that failed.

View Answer

Answer: C

Explanation

The IP Event Dampening feature introduces a configurable exponential decay mechanism to suppress the effects of excessive interface flapping events on routing protocols and routing tables in the network. This feature allows the network operator to configure a router to automatically identify and selectively dampen a local interface that is flapping.

Dampening an interface effectively removes it from the network until the interface is stable and stops flapping (bouncing up and down). Configuring IP event dampening also improves stability and convergence time, because these disturbances are not propagated to other parts of the network, thus reducing the wastage of system resources required to process them.

The following example configures interface dampening on Gigabit Ethernet interface 0/0/0 and sets the half life to 30 seconds, the reuse threshold to 1500, the suppress threshold to 10000, and the maximum suppress time to 120 seconds:

interface GigabitEthernet 0/0/0

dampening 30 1500 10000 120

Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_pi/configuration/xe-16-11/iri-xe-16-11-book/iri-pi-event-damp.html