How to configure storm control on NBS Switch?

Overview
When a local area network (LAN) has excess broadcast, multicast, or unknown unicast data flows, the network speed will slow down and packet transmission will have an increased timeout probability. This is called LAN storm, which may be caused by topology protocol execution errors or incorrect network configuration.
Users can perform storm control separately for the broadcast, multicast, and unknown unicast data flows. When the rate of broadcast, multicast, or unknown unicast data flows received over a device port exceeds the specified range, the device transmits only packets in the specified range and discards packets beyond the range until the packet rate falls within the range. This prevents flooded data from entering the LAN and causing a storm.

Procedure
Choose Local Device > Security > Storm Control.
Click Batch  Edit. In  the  displayed  dialog  box,  select  configuration  types  and  ports, enter  the  rate  limits  of broadcast, unknown multicast, and unknown unicast, and click OK. To modify or delete the rate limit rules after completing the configuration, you can click Edit or Delete in the Action column.

There are two configuration types:

• Storm control based on packets per second: If the rate of data flows received over a device port exceeds the configured  packets-per-second  threshold,  excess  data  flows  are  discarded  until  the  rate  falls  within  the threshold.
• Storm control based on kilobytes per second: If the rate of data flows received over a device port exceeds the configured  kilobytes-per-second  threshold,  excess  data  flows  are  discarded  until  the  rate  falls  within  the threshold.