Configuring Storm Control On An Ethernet Interface - HP 3600 v2 series Configuration Manual

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.
For management purposes, you can configure the interface to send threshold event traps and log
messages when monitored traffic exceeds the upper threshold or drops below the lower threshold from
the upper threshold.
When a particular type of traffic exceeds its upper threshold, the interface does either of the following,
depending on your configuration:
Blocks this type of traffic, while forwarding other types of traffic. Even though the interface does not
•
forward the blocked traffic, it still counts the traffic. When the blocked traffic drops below the lower
threshold, the port begins to forward the traffic.
Shuts down automatically. The interface shuts down automatically and stops forwarding any traffic.
•
When the blocked traffic drops below the lower threshold, the port does not forward the traffic. To
bring up the interface, use the undo shutdown command or disable the storm control function.
CAUTION:
Alternatively, you can configure the storm suppression function to control a specific type of traffic. Do not
enable them both on an Ethernet interface at the same time because the storm suppression and storm
control functions are mutually exclusive. For example, with an unknown unicast suppression threshold set
on an Ethernet interface, do not enable storm control for unknown unicast traffic on the interface. For more
information about storm suppression, see
Follow these steps to configure storm control on an Ethernet interface:
To do...
Enter system view
Set the traffic polling interval of the
storm control module
Enter Ethernet interface view
Enable storm control, and set the
lower and upper thresholds for
broadcast, multicast, or unknown
unicast traffic
Set the control action to take when
monitored traffic exceeds the
upper threshold
Enable the interface to send storm
control threshold event traps.
"Configuring storm
Use the command...
system-view
storm-constrain interval seconds
interface interface-type
interface-number
storm-constrain { broadcast |
multicast | unicast } { pps | kbps |
ratio } max-pps-values
min-pps-values
storm-constrain control { block |
shutdown }
storm-constrain enable trap
15
suppression."
Remarks
—
Optional
10 seconds by default.
—
Required
Disabled by default.
Optional
Disabled by default.
Optional
By default, the interface sends
traps when monitored traffic
exceeds the upper threshold or
drops below the lower threshold
from the upper threshold.