HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 2 - LAN Switching Command Refer - Page 8

Ethernet interface commands, broadcast-suppression

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Ethernet interface commands broadcast-suppression Use broadcast-suppression to enable broadcast suppression and set the broadcast suppression threshold. Use undo broadcast-suppression to restore the default. Syntax broadcast-suppression { ratio | pps max-pps | kbps max-kbps } undo broadcast-suppression Default Ethernet interfaces do not suppress broadcast traffic. Views Ethernet interface view Predefined user roles network-admin Parameters ratio: Sets the broadcast suppression threshold as a percentage of the maximum interface rate. The value range for this argument is 0 to 100. The smaller the percentage, the less broadcast traffic is allowed to pass through. pps max-pps: Specifies the maximum number of broadcast packets that the interface can forward per second. The value range for the max-pps argument (in pps) is 1 to 1.4881 × the maximum interface rate. For example, the value range for this argument is 1 to 1488100 on a GE interface and 1 to 59524000 on a 40-GE interface. kbps max-kbps: Specifies the maximum number of kilobits of broadcast traffic that the Ethernet interface can forward per second. The value range for this argument (in kbps) is 1 to the maximum interface rate. Usage guidelines You can use the broadcast storm suppression function to limit the size of broadcast traffic on an interface. When the broadcast traffic on the interface exceeds this threshold, the system drops packets until the traffic drops below this threshold. Both storm-constrain and broadcast-suppression can suppress broadcast storm on a port. The storm-constrain command uses software to suppress broadcast traffic, and it affects the device performance to a certain extent. The broadcast-suppression command uses the chip to physically suppress broadcast traffic, and it has less influence on the device performance than the storm-constrain command. Do not configure the storm constrain command and the broadcast-suppression command on a port. Otherwise, the traffic suppression result is not determined. When you configure the suppression threshold in pps or kbps, the device might convert the configured value into a multiple of a certain step supported by the chip. As a result, the actual suppression threshold might be different from the configured one. To determine the suppression threshold that takes effect, see the prompts on the device. 1

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1
Ethernet interface commands
broadcast-suppression
Use
broadcast-suppression
to enable broadcast suppression and set the broadcast suppression
threshold.
Use
undo broadcast-suppression
to restore the default.
Syntax
broadcast-suppression
{
ratio
|
pps
max-pps
|
kbps
max-kbps
}
undo
broadcast-suppression
Default
Ethernet interfaces do not suppress broadcast traffic.
Views
Ethernet interface view
Predefined user roles
network-admin
Parameters
ratio
: Sets the broadcast suppression threshold as a percentage of the maximum interface rate. The value
range for this argument is 0 to 100. The smaller the percentage, the less broadcast traffic is allowed to
pass through.
pps
max-pps
: Specifies the maximum number of broadcast packets that the interface can forward per
second. The value range for the
max-pps
argument (in pps) is 1 to 1.4881 × the maximum interface rate.
For example, the value range for this argument is 1 to 1488100 on a GE interface and 1 to 59524000
on a 40-GE interface.
kbps
max-kbps
: Specifies the maximum number of kilobits of broadcast traffic that the Ethernet interface
can forward per second. The value range for this argument (in kbps) is 1 to the maximum interface rate.
Usage guidelines
You can use the broadcast storm suppression function to limit the size of broadcast traffic on an interface.
When the broadcast traffic on the interface exceeds this threshold, the system drops packets until the
traffic drops below this threshold.
Both
storm-constrain
and
broadcast-suppression
can suppress broadcast storm on a port. The
storm-constrain
command uses software to suppress broadcast traffic, and it affects the device
performance to a certain extent. The
broadcast-suppression
command uses the chip to physically
suppress broadcast traffic, and it has less influence on the device performance than the
storm-constrain
command. Do not configure the
storm constrain
command and the
broadcast-suppression
command on
a port. Otherwise, the traffic suppression result is not determined.
When you configure the suppression threshold in pps or kbps, the device might convert the configured
value into a multiple of a certain step supported by the chip. As a result, the actual suppression threshold
might be different from the configured one. To determine the suppression threshold that takes effect, see
the prompts on the device.