If a packet storm has been encountered continuously on a given port for a long period of time (indicated by the value of this object), the port will be shut down forever until it's recovered manually. Note: The max entry range is (-1..N), the value N means the maximum number, it is determined by the project itself. Value 0 to disable the function of shutdown forever. Value -1 means disable the countdown timer, When the action is shutdown and countdown time is disabled, when the switch detects storm, it will shutdown the port directly.