R0106-HP MSR Router Series Interface Command Reference(V7)

38
Predefined user roles
network-admin
Parameters
ratio: Sets the multicast suppression threshold as a percentage of the maximum interface rate. The value
range for this argument (in percentage) is 0 to 100. The smaller the percentage, the less multicast traffic
is allowed to pass through.
pps max-pps: Specifies the maximum number of multicast packets that the interface can forward per
second. The value range for the max-pps argument (in pps) is 0 to 1.4881 × the maximum interface rate.
For example, the value range for this argument is 0 to 1488100 on a GE interface.
Usage guidelines
You can use the multicast storm suppression function to limit the size of multicast traffic on an interface.
When the multicast traffic on the interface exceeds this threshold, the system drops packets until the traffic
drops below this threshold.
When you configure the suppression threshold in pps, 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.
Examples
# Set the multicast storm suppression threshold to 1488100 pps on GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] multicast-suppression pps 1488100
Related commands
• broadcast-suppression
• unicast-suppression
unicast-suppression
Use unicast-suppression to enable unicast storm suppression and set the unicast storm suppression
threshold.
Use undo unicast-suppression to restore the default.
Syntax
unicast-suppression { ratio | pps max-pps }
undo unicast-suppression
Default
Ethernet interfaces do not suppress unicast traffic.
Views
Layer 2 Ethernet interface view
Predefined user roles
network-admin