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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 12

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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Configuration Notes

Configuration Notes

This section describes the precautions for traffic suppression and storm control configuration and differences between them.

Features Supported by the Device

Table 12-19 lists traffic suppression and storm control features supported by the device.

Table 12-19 Features supported by the device
View Traffic Suppression and Storm Control Features Supported by the Device
Interface view
  • Traffic suppression for broadcast packets, multicast packets, and unknown unicast packets
  • Storm control for broadcast packets, multicast packets, and unknown unicast packets
  • Traffic suppression for ICMP packets
VLAN view Traffic suppression for broadcast packets, multicast packets, and unknown unicast packets

Difference between Traffic Suppression and Storm Control

Traffic suppression and storm control prevent broadcast storms caused by broadcast packets, multicast packets, and unknown unicast packets. However, they use different modes to control traffic:

  • In traffic suppression, rate thresholds are configured for three types of incoming packets on interfaces. The system discards the traffic exceeding the threshold and forwards the traffic within the threshold. In this way, the system limits the traffic rate in an acceptable range. In addition, traffic suppression supports blocking outgoing packets on interfaces.
  • In storm control, rate thresholds only for the incoming packets. When the traffic exceeds the threshold, the interface will be shut down.
NOTE:

For the incoming packets of the same type on an interface, only either of the traffic suppression or storm control can be configured.

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Updated: 2019-08-09

Document ID: EDOC1000041694

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