H3C S3100 Series Command Manual page 197

Command Manual (For Soliton) – Port Basic Configuration
H3C S3100 Series Ethernet Switches
For a GigabitEthernet port, the max-bps argument is in the range 64 to 1,000,000.
Description
Use the multicast-suppression command to limit unknown multicast and unknown
unicast traffic allowed to be received on the current port.
Use the undo multicast-suppression command to restore the default unknown
multicast and unknown unicast traffic suppression setting on the current port.
After the configuration, the switch will suppress the unknown multicast and unknown
unicast traffic simultaneously.
When the sum of incoming unknown multicast traffic and unknown unicast traffic on the
port exceeds the traffic threshold you set, the system drops the packets exceeding the
threshold to reduce the unknown multicast and unknown unicast traffic ratio to the
reasonable range, so as to keep normal network service..
By default, the switch does not suppress unknown multicast and unknown unicast
traffic.
Note:
With line rate (LR) applied on one port in the inbound direction or the Traffic Policing
enabled, multicast suppression cannot be enabled on any port of the device, and vice
versa. Refer to the QoS part for information about LR and Traffic Policing.
Example
# Set the maximum number of unknown multicast and unknown unicast traffic that can
be received per second by Ethernet 1/0/2 to 128Kbps.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] interface Ethernet1/0/2
[Sysname-Ethernet1/0/2] multicast-suppression bps 128
1.1.27 port
Syntax
port interface-list
undo port interface-list
View
Port group view
Chapter 1 Port Basic Configuration
1-32
Commands