Multicast-Suppression - H3C S5120-SI Series Command Reference Manual

multicast-suppression

Syntax
multicast-suppression { ratio | pps max-pps | kbps max-bps }
undo multicast-suppression
View
Ethernet port view, port group view
Default Level
2: System level
Parameters
ratio: Maximum percentage of multicast traffic to the total transmission capability of an Ethernet port, in
the range 1 to 100. The smaller the ratio is, the less multicast traffic is allowed to pass through the
interface.
pps max-pps: Specifies the maximum number of multicast packets allowed on an Ethernet port per
second. The max-pps argument ranges from 1 to 1488100 (in pps, representing packets per second).
kbps max-bps: Specifies the maximum number of multicast kilobits that can be forwarded on an
Ethernet port per second The max-bps argument ranges from 1 to 1024000 (in kbps, representing
kilobits per second).
Description
Use the multicast-suppression command to configure multicast storm suppression ratio on an
interface.
Use the undo multicast-suppression command to restore the default multicast suppression ratio.
By default, multicast traffic is not suppressed.
If you execute this command in Ethernet port view, the configurations take effect only on the current
interface. If you execute this command in port-group view, the configurations take effect on all ports in
the port group.
Note that when multicast traffic exceeds the maximum value configured, the system will discard the
extra packets so that the multicast traffic ratio can drop below the limit to ensure that the network
functions properly.
If you set different suppression ratios in Ethernet port view or port-group view for multiple times, the
latest configuration takes effect.
Do not use the multicast-suppression command along with the storm-constrain command.
Otherwise, the multicast storm suppression ratio configured may get invalid.
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