a.Add storm constrain settings for ports

2.Port storm constrain configuration items

Item

Remarks

 

Specify the action to be performed when a type of traffic exceeds the corresponding

 

upper threshold. Available options include:

 

∙ None—Performs no action.

 

∙ Block—Blocks the traffic of this type on a port when the type of traffic exceeds the

 

upper threshold.

 

∙ Shutdown—Shuts down the port when a type of traffic exceeds the traffic

Control Mode

threshold. The port stops forwarding traffic as a result.

 

IMPORTANT:

 

The storm constrain function, after being enabled, requires a full traffic statistics

 

generating interval (in seconds) to collect traffic data, and analyzes the data in the next

 

interval. It is normal that a period longer than one traffic statistics generating interval is

 

waited for a control action to happen if you enable the function while the packet storm

 

is present. Nevertheless, the action will be taken within two intervals.

Broadcast Threshold

Set the broadcast, multicast, and unicast thresholds.

 

∙ None—Performs no storm constrain for the selected port or ports.

Multicast Threshold

∙ pps—Specifies the storm constrain upper threshold and lower threshold in

 

 

 

packets per second (pps).

 

IMPORTANT:

Unicast Threshold

∙ On a port, you can set the thresholds for broadcast, multicast, and unicast traffic

at the same time. To set storm constrain on a port successfully, you must specify

 

 

the thresholds for at least a type of traffic.

∙When the pps option is selected, the upper threshold and lower threshold ranges depend on the interface type, as shown in the pps range description on the page.

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