Whether S series switch can be configured traffic suppression function of broadcast packets and unknown multicast on the interface at the same time.

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S series switch can be configured traffic suppression function of broadcast packets and unknown multicast on the interface at the same time.
Under the interface, the traffic suppression function is aimed at:
- Enable interface broadcast message suppression function, only broadcast message suppression.
- Enable the unknown multicast message suppression function of the interface, only the suppression of unknown multicast packets.
- Enable the interface to be unknown unicast message suppression function, only the unknown unicast message suppression.

Other related questions:
Can broadcast and multicast packets be simultaneously suppressed after traffic suppression is enabled on an interface of an S series switch
Traffic suppression can be configured for both broadcast and multicast packets on an interface of an S series switch. Traffic suppression on an interface is implemented for one type of packets as follows: After broadcast traffic suppression is enabled on an interface, only broadcast packets are suppressed. After unknown multicast traffic suppression is enabled on an interface, only unknown multicast packets are suppressed. After unknown unicast suppression is enabled on an interface, only unknown unicast packets are suppressed.

How to configure broadcast traffic suppression on an interface of a CE series switch
Excessive broadcast packets on inbound and outbound interfaces of a switch will cause broadcast storms. To limit the rate of broadcast packets on an interface, you can configure broadcast traffic suppression on the interface.
For example, you can configure broadcast traffic suppression on 10GE1/0/1 and set the maximum rate of broadcast packets on the interface to 100 kbit/s.
<HUAWEI> system-view
[~HUAWEI] interface 10ge 1/0/1
[~HUAWEI-10GE1/0/1] storm suppression broadcast cir 100
[*HUAWEI-10GE1/0/1] commit

Functions of suppress-time on S series switches
For an S series switch, to protect an upstream Layer 3 device from attacks and reduce the loads on the Layer 3 device, a Layer 2 device can suppress repeated IGMP Report and IGMP Leave messages sent from users in a VLAN. The message suppression mechanism is as follows: - After receiving and forwarding an IGMP Report/Leave message, the Layer 2 device does not forward repeated MLD Report messages to the router port within the suppression time. - If the Layer 2 device receives an IGMP General Query message or Multicast-Address-Specific message within the suppression time, it does not suppress the first IGMP Report message sent in response to the General Query message. In addition, the Layer 2 device resets the suppression timer when receiving the first IGMP Report message. suppress-time is used to set the suppression time of Report/Leave messages. By default, the suppression time for IGMP Report/Leave messages is 10s. If the suppression time is set to 0, Report/Leave messages are not discarded. The suppression function applies only to IGMPv1 and IGMPv2 Report/Leave messages and is invalid for IGMPv3 Report/Leave messages.

How to configure unknown unicast traffic suppression on an interface of a CE series switch
Excessive unknown unicast packets on inbound and outbound interfaces of a switch will cause broadcast storms. To limit the rate of unknown unicast packets on an interface, you can configure unknown unicast traffic suppression on the interface.
For example, you can configure unknown unicast traffic suppression on 10GE1/0/1 and set the maximum rate of unknown unicast packets on 10GE1/0/1 to 100 kbit/s.
<HUAWEI> system-view
[~HUAWEI] interface 10ge 1/0/1
[~HUAWEI-10GE1/0/1] storm suppression unknown-unicast cir 100
[*HUAWEI-10GE1/0/1] commit

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