HP A5120 EI Series

8
Configuring storm suppression on an Ethernet interface
You can use the following guidelines to set one suppression threshold for broadcast, multicast, and
unknown unicast traffic separately on an Ethernet interface.
 Set the threshold as a percentage of the interface transmission capability.
 Set the threshold in kbps, limiting the number of kilobits of monitored traffic passing through the
interface per second.
 Set the threshold in pps, limiting the number of monitored packets passing through the interface per
second.
NOTE:
If one suppression threshold has been set in pps on an Ethernet interface, you must set other
suppression thresholds in pps. If one suppression threshold has been set in percentage or kbps, you
cannot set other suppression thresholds in pps.
Follow these steps to configure storm suppression on an Ethernet interface:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter Ethernet
interface view
or port group
view
Enter Ethernet
interface view
interface interface-type interface-
number
Use either command.
To configure storm suppression
on one Ethernet interface, enter
Ethernet interface view.
To configure storm suppression
on a group of Ethernet
interfaces, enter port group
view.
Enter port
group view
port-group manual port-group-name
Set a broadcast suppression
threshold
broadcast-suppression { ratio | pps
max-pps | kbps max-bps }
Optional
By default, all broadcast traffic
is allowed to pass through an
interface.
Set a multicast suppression
threshold
multicast-suppression { ratio | pps
max-pps | kbps max-bps }
Optional
By default, all multicast traffic is
allowed to pass through an
interface.
Set a unknown unicast
suppression threshold
unicast-suppression { ratio | pps max-
pps | kbps max-bps }
Optional
By default, all unknown unicast
traffic is allowed to pass
through an interface.
NOTE:
If you set a storm suppression threshold in both Ethernet interface view and port group view, the
threshold configured last takes effect.
Configuring storm control on an Ethernet interface
Storm control compares broadcast, multicast, and unknown unicast traffic regularly with their respective
traffic thresholds on an Ethernet interface. For each type of traffic, storm control provides a lower threshold
and a higher threshold.