HP E4510-48G, Command Reference Manual

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multicast-suppression
Syntax
multicast-suppression { ratio | pps max-pps }
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 (in pps, representing packets per second).
z
For a Gigabit port, the value range is 1 to 1488100.
z
For a 10-Gigabit port, the value range is 1 to 14881000.
Note that:
z
When a suppression granularity larger than 1 is specified on the device, the value of the pps
keyword should be no smaller than and an integral multiple of the granularity. The multicast
suppression threshold value configured through this keyword on an Ethernet port may not be the
one that actually takes effect. To display the actual multicast suppression threshold value on an
Ethernet port, you can use the display interface command.
z
When no suppression granularity is specified or the suppression granularity is set to 1, the value
of the pps keyword should be no smaller than 1, and the multicast suppression threshold value is
the one that actually takes effect on the Ethernet port.
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, all multicast traffic is allowed to go through an Ethernet port, that is, 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.