How to configure storm control on NBS Switch?
OverviewWhen 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 BatchEdit. Inthedisplayeddialogbox,selectconfigurationtypesandports, entertheratelimitsof 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 configuredpackets-per-secondthreshold,excessdataflowsarediscardeduntiltheratefallswithinthe threshold.
[*]Storm control based on kilobytes per second: If the rate of data flows received over a device port exceeds the configuredkilobytes-per-secondthreshold,excessdataflowsarediscardeduntiltheratefallswithinthe threshold.
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