Setting The Interface Statistics Polling Interval; Enabling Loopback Detection On An Ethernet Interface - H3C WA Series Configuration Manual

To do...
Set the broadcast storm
suppression threshold
Set the multicast storm
suppression threshold
Set the unknown unicast storm
suppression threshold

Setting the Interface Statistics Polling Interval

Follow these steps to set the interface statistics polling interval:
To do...
Enter system view
Set the interface statistics polling
interval
In system view, you configure a statistics polling interval for all interfaces.

Enabling Loopback Detection on an Ethernet Interface

If an interface receives a packet that it sent out, a loop has occurred. Loops may cause broadcast
storms, which degrade network performance. You can enable loopback detection to detect loops on an
interface and, if the interface supports the loopback-detection action command, configure the
protective action to take on the interface when a loop is detected, for example, to shut down the
interface. Depending on whether a protective action is configured, the AP takes the actions in
to alleviate the impact of the loop condition.
Table 4-1 Actions taken upon detection of a loop condition
Port type
Access port
Use the command...
broadcast-suppression { ratio |
pps max-pps }
multicast-suppression { ratio |
pps max-pps }
unicast-suppression { ratio | pps
max-pps }
Use the command...
system-view
flow-interval interval
No protective action configured
Place the interface in controlled
mode. The interface discards all
incoming packets, but still forwards
outgoing traffic.
Generate traps.
Delete all MAC address entries of
the interface.
4-4
Optional
By default, broadcast traffic is not
suppressed.
Optional
By default, multicast traffic is not
suppressed.
Optional
By default, unknown unicast traffic
is not suppressed.
—
Optional
The default interface statistics
polling interval is 300 seconds
Actions
A protective action configured
Perform the
action.
Generate traps and log messages.
Delete all MAC address entries of the
interface.
Remarks
Remarks
Table 4-1
configured protective