H3C Technologies H3C S12500 Series Switches - Manual (Page 22)

14
Configuring storm suppression for an Ethernet interface
CAUTION:
•
On an interface card, the thresholds for different types of traffic must use the same unit of measurement.
For example, if you have configured the broadcast-suppression kbps
max-kbps command for one
interface on an interface card, you cannot configure the multicast-suppression pps max-pps command
for any other interface on the interface card.
• On an interface, you can configure only one traffic threshold. For example, if you have configured the
broadcast-suppression kbps
100 command on an interface, you cannot configure a command like
unicast-suppression kbps 200 or multicast-suppression kbps 200 on it.
You can suppress the broadcast, unknown multicast, and unknown unicast traffic passing through an
Ethernet interface by setting a traffic threshold. When the traffic threshold is exceeded, the interface
drops excessive packets.
To configure the storm suppression function for an Ethernet interface:
Step Command Remarks
50. Enter system view. system-view N/A
51. Enter Ethernet interface
view or port group view.
• Enter Ethernet interface view:
interface interface-type
interface-number
• Enter port group view:
port-group manual
port-group-name
Use either command.
Configurations made in interface view
take effect on the current interface only.
Configurations made in port group view
take effect on all interfaces in the group.
52. Configure broadcast
suppression.
broadcast-suppression { pps
max-pps | kbps max-kbps }
Optional.
By default, all broadcast traffic can pass
through an Ethernet interface.
53. Configure unknown
multicast suppression.
multicast-suppression { kbps
max-kbps | pps max-pps }
Optional.
By default, all unknown multicast traffic
can pass through an Ethernet interface.
54. Configure unknown
unicast suppression.
unicast-suppression { kbps
max-kbps | pps max-pps }
Optional.
By default, all unknown unicast traffic can
pass through an Ethernet interface.
Configuring jumbo frame support
An Ethernet interface might receive some frames larger than the standard Ethernet frame size (called
jumbo frames) during high-throughput data exchanges such as file transfers. Usually, an Ethernet
interface discards jumbo frames. With jumbo frame support enabled, the interface can process frames
larger than the standard Ethernet frame size yet within the specified range.
To configure jumbo frame support on Ethernet interfaces:
Step Command Remarks
55. Enter system view. system-view N/A