17
Step Command
Remarks
2.
Enter Ethernet interface
view.
interface interface-type
interface-number
Only GE fiber ports, 10-GE fiber ports,
40-GE fiber ports, and 100-GE fiber
ports support this feature.
Copper ports and combo interfaces do
not support this feature.
3.
Forcibly bring up the fiber
port.
port up-mode
By default, a fiber port is not forcibly
brought up, and the physical state of a
fiber port depends on the physical state
of the fibers.
Configuring a Layer 2 Ethernet interface
Configuring storm suppression
The storm suppression feature ensures that the size of a particular type of traffic (broadcast,
multicast, or unknown unicast traffic) does not exceed the threshold 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.
Both storm suppression and storm control can suppress storms on an interface. Storm suppression
uses the chip to suppress traffic. Storm suppression has less impact on the device performance than
storm control, which uses software to suppress traffic.
Configuration restrictions and guidelines
When you configure storm suppression, follow these restrictions and guidelines:
•
For the traffic suppression result to be determined, do not configure storm control together with
storm suppression for the same type of traffic. For more information about storm control, see
"
Configuring storm control on an Ethernet interface
•
The configured suppression threshold value in pps or kbps might be converted into a multiple of
a step supported by the chip. As a result, the effective suppression threshold might be different
from the configured one. For information about the suppression threshold that takes effect, see
the prompt on the device.
Configuration procedure
To set storm suppression thresholds on an Ethernet interface:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter Ethernet interface
view.
interface interface-type
interface-number
N/A
3.
Enable broadcast
suppression and set the
broadcast suppression
threshold.
broadcast-suppression
{
ratio
|
pps max-pps
|
kbps max-kbps
}
By default, broadcast suppression
is disabled.
4.
Enable multicast
suppression and set the
multicast suppression
threshold.
multicast-suppression
{
ratio
|
pps max-pps
|
kbps max-kbps
}
By default, multicast suppression
is disabled.
