Storm Control blocks an interface upon receiving unicast, multicast, or broadcast packets flood based on the threshold value within one second period of time. This can be handy to prevent or at least reduce network flooding activities that can impact the network performance.
When the offending traffic reaches the Rising Threshold (RT), the interface blocks all traffic until the offending traffic rate drops below the Falling Threshold (FT). If FT is not specified, only RT will be used to measure.
The threshold value is from 0 to 100 where as 0 is to block any traffic and 100 is turning off the limit. The threshold value can be bits-per-second (bps), packets-per-second (pps), or percentage.