Configuring A Layer 2 Ethernet Interface; Configuring Storm Suppression - H3C S12500 Series Interface Configuration Manual

Step
3. Set the statistics polling
interval.
To display the interface statistics collected in the last polling interval, use the display interface command.
To clear interface statistics, use the reset counters interface command.

Configuring a Layer 2 Ethernet interface

Configuring storm suppression

You can use the storm suppression function to limit the size of a particular type of traffic (broadcast,
multicast, or unknown unicast traffic) on an interface. When the broadcast, multicast, or unknown unicast
traffic on the interface exceeds this threshold, the system discards packets until the traffic drops below this
threshold.
Configuration guidelines
• When you configure the suppression threshold in pps or kbps, the device converts the configured
value into a multiple of a certain step (6400 for pps and 50 for kbps) supported by the chip. As a
result, the actual suppression threshold may be different from the configured one. For the
suppression threshold that takes effect, see the prompt on the device.
On an interface, you can configure only one of the kbps and pps keywords. To switch between the
•
kbps and pps keywords, you must first restore the broadcast, multicast, or unknown unicast
suppression threshold to the default.
• On an interface, only one suppression threshold is supported for different types of traffic. For
example, if you have configured the broadcast suppression threshold as 100 kbps by using the
broadcast-suppression kbps 100 command on an interface, to configure the multicast suppression
threshold and unknown unicast threshold on the interface, you can only use the
multicast-suppression kbps 100 and unicast-suppression kbps 100 commands.
Configuration procedure
To set storm suppression thresholds on one or multiple Ethernet interfaces:
Step
1. Enter system view.
2. Enter Ethernet interface view.
3. Enable broadcast suppression
and
suppression threshold.
4. Enable multicast suppression
and
suppression threshold.
Command
flow-interval interval
set the broadcast
set the multicast
Command
system-view
interface interface-type
interface-number
broadcast-suppression { ratio |
pps max-pps | kbps max-kbps }
multicast-suppression { ratio | pps
max-pps | kbps max-kbps }
7
Remarks
The default setting is 300 seconds.
Remarks
N/A
N/A
By default, broadcast traffic is
allowed to pass through an
interface.
The ratio argument is always 100.
By default, multicast traffic is
allowed to pass through an
interface.
The ratio argument is always 100.