H3C S5120-EI Series User Manual

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With the storm constrain function enabled on an Ethernet interface, you can specify the system to act as
follows when the traffic detected exceeds the threshold.
z Blocking the interface. In this case, the interface is blocked and thus stops forwarding the traffic of
this type till the traffic detected is lower than the threshold. Note that an interface blocked by the
storm constrain function can still forward other types of traffic and monitor the blocked traffic.
z Shutting down the interface. In this case, the interface is shut down and stops forwarding all types
of traffic. Interfaces shut down by the storm constrain function can only be brought up by using the
undo shutdown command or disabling the storm constrain function.
Follow these steps to configure the storm constrain function on an Ethernet interface:
To do… Use the command… Remarks
Enter system view
system-view
—
Set the interval for generating
traffic statistics
storm-constrain interval
seconds
Optional
10 seconds by default
Enter Ethernet interface view
interface interface-type
interface-number
—
Enable the storm constrain
function and set the lower
threshold and the upper
threshold
storm-constrain { broadcast |
multicast } { pps | kbps |
ratio } max-pps-values
min-pps-values
Required
Disabled by default
Set the action to be taken when
the traffic exceeds the upper
threshold
storm-constrain control
{ block | shutdown }
Optional
Disabled by default
Specify to send trap messages
when the traffic detected
exceeds the upper threshold or
drops down below the lower
threshold from a point higher
than the upper threshold
storm-constrain enable trap
Optional
By default, the system sends
trap messages when the traffic
detected exceeds the upper
threshold or drops down below
the lower threshold from a point
higher than the upper
threshold.
Specify to send log when the
traffic detected exceeds the
upper threshold or drops down
below the lower threshold from
a point higher than the upper
threshold
storm-constrain enable log
Optional
By default, the system sends
log when the traffic detected
exceeds the upper threshold or
drops down below the lower
threshold from a point higher
than the upper threshold.

H3C S5120-EI Series Specifications

General

Brand	H3C
Model	S5120-EI Series
Category	Switch
Language	English