4.4.12.8 Storm Control
Select the option Storm Control from the Security Configuration menu to set up storm control
parameters for ports and then the following screen page appears.
When a device on the network is malfunctioning or application programs are not well designed or
properly configured, broadcast/unknown multicast/unknown unicast storms may occur, network
performance may be degraded or, in the worst situation, a complete halt may happen. The
Managed Switch allows users to set a threshold rate for broadcast/unknown multicast/unknown
unicast traffic on a per switch basis so as to protect network from broadcast/ unknown multicast/
unknown unicast storms. Any broadcast/unknown multicast/unknown unicast packets exceeding
the specified value will then be dropped.
Three options of frame traffic are provided to allow users to enable or disable the storm control.
Unknown Unicast Rate: Enable or disable unknown Unicast traffic control and set up unknown
Unicast Rate packet per second (pps). 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1k, 2k, 4k, 8k, 16k,
32k, 64k, 128k, 256k, 512k, 1024k can be chosen from this pull-down menu.
Unkown Multicast Rate: Enable or disable Unkown Multicast traffic control and set up Unkown
Multicast Rate packet per second (pps). 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1k, 2k, 4k, 8k, 16k,
32k, 64k, 128k, 256k, 512k, 1024k can be chosen from this pull-down menu.
Broadcast Rate: Enable or disable Broadcast traffic control and set up broadcast Rate packet per
second (pps). 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1k, 2k, 4k, 8k, 16k, 32k, 64k, 128k, 256k, 512k,
1024k can be chosen from this pull-down menu.
Threshold Interval for Notification: To set up the time interval of sending the alarm trap or
system log if broadcast/unknown multicast/unknown unicast packets flood continuously.
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