In order to meet your service level agreement, your network designer created a design solution that includes interface dampening. In which two ways will interface dampening benefit your overall…

Interface dampening accumulates a penalty value each time the interface changes state and applies an exponential decay algorithm, so a rapidly flapping interface quickly reaches the suppress threshold. Once that threshold is crossed, event reporting to upper protocol modules such as OSPF or BGP is halted, protecting routing stability from transient physical layer issues.

Once an interface is dampened, subsequent link-state changes are no longer passed to upper protocol modules, preventing routing protocols from generating unnecessary topology updates and reconvergence cycles. This isolation of the flapping interface from the routing system is the core protection mechanism dampening provides to overall network stability.

This is the opposite of dampening behavior - the entire purpose of dampening is to stop reporting link events to upper protocol modules once the suppress threshold is reached, not to continue reporting them.

A shorter flapping period increases the rate of instability events and worsens routing churn - this describes a condition that motivates dampening rather than a benefit it provides.