Storm control prevents interfaces from disruptions by providing protection against excessive ingress rates of unknown-unicast, multicast, and broadcast traffic. The function can be set under switch-profile.
See an example below .
The settings are to allow only 50% of interface speed to be used for unknown unicast, broadcast and multicast traffic.
(host) (config) #interface-profile switching-profile STORM_CONTROL
(host) (switching profile "STORM_CONTROL") #storm-control-bandwidth 50
(host) (switching profile "STORM_CONTROL") #storm-control-unknown-unicast
(host) (switching profile "STORM_CONTROL") #storm-control-multicast
(host) (switching profile "STORM_CONTROL") #storm-control-broadcast
(host) (config) #interface gigabitethernet 0/0/20
(host) (gigabitethernet "0/0/20") #switching-profile STORM_CONTROL