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Typical Configuration Examples

CloudEngine 12800, 12800E, 8800, 7800, 6800, and 5800 Series Switches

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring Traffic Suppression

Configuring Traffic Suppression

Applicable Products and Versions

This example applies to the CE12800/CE6800/CE5800 V100R001C00 or later.

This example applies to the CE7800 V100R003C00 or later.

This example applies to the CE8800 V100R006C00 or later.

This example applies to the CE12800E V200R002C50 or later.

Networking Requirements

As shown in Figure 2-62, SwitchA is located between the Layer 2 network and the Layer 3 router to prevent the storms caused by broadcast, multicast, and unknown unicast packets sent from users on the Layer 2 network.

Figure 2-62 Diagram for configuring traffic suppression

NOTE:
The traffic suppression and storm control functions cannot be configured on the same interface.
Both the two functions have the same purpose. That is, they are used to prevent storms caused by broadcast, multicast, and unknown unicast packets. However, they take different measures:
  • Traffic suppression sets threshold for each type of packets. When the packet rate exceeds a threshold, it discards the excessive packets.
  • Storm control sets threshold for each type of packets. When the packet rate exceeds a threshold, it shuts down the interface.

Procedure

  1. Enter the interface view.

    <HUAWEI> system-view
    [~HUAWEI] sysname SwitchA
    [*HUAWEI] commit
    [~SwitchA] interface 10ge 1/0/1

  2. Configure broadcast packet suppression. Set the CIR to 100 kbit/s and CBS to 18800 bytes (default value).

    [~SwitchA-10GE1/0/1] storm suppression broadcast cir 100 cbs 18800

  3. Configure multicast packet suppression. Set the upper limit of the multicast packet rate on the interface to 80% of the maximum rate of the interface.

    [*SwitchA-10GE1/0/1] storm suppression multicast 80

  4. Configure unknown unicast packet suppression. Set the CIR to 100 kbit/s and CBS to 18800 bytes (default value).

    [*SwitchA-10GE1/0/1] storm suppression unknown-unicast cir 100 cbs 18800
    [*SwitchA-10GE1/0/1] commit

Verifying the Configuration

Run the display this command on 10GE1/0/1 to check the configuration of traffic suppression.

  • V100R002C00 and earlier versions

    [~SwitchA-10GE1/0/1] display this
    #                                                                               
    interface 10GE1/0/1                                                             
     storm suppression unknown-unicast cir 100 cbs 18800                            
     storm suppression multicast 80                                                 
     storm suppression broadcast cir 100 cbs 18800                                  
    # 
  • V100R002C00SPC100 and later versions

    [~SwitchA-10GE1/0/1] display this
    #                                                                               
    interface 10GE1/0/1                                                             
     storm suppression broadcast cir 100 kbps cbs 18800 bytes                      
     storm suppression unknown-unicast cir 100 kbps cbs 18800 bytes               
     storm suppression multicast 80                                   
    # 
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Updated: 2019-04-03

Document ID: EDOC1000039339

Views: 116010

Downloads: 7526

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