Traffic Suppression

Traffic suppression limits traffic rate on a switch, to prevent broadcast storms caused by broadcast, unknown multicast, or unknown unicast packets.

Context

The device monitors rates of these packets on the interface and compares the rates with the thresholds. When the rate of incoming traffic reaches the threshold, the system discards excess traffic.

Procedure

Configure traffic suppression.

Choose Security > Storm Control > Traffic Suppression in the navigation tree to open the Storm Control page

Select an interface and click Configure to open the Traffic Suppression page

Table 1 describes the parameters on the page.

**Table 1** Traffic Suppression
Parameter		Description
Interface name		Indicates the interface where traffic suppression is configured.
Status		Indicates the type of packets for which traffic suppression is configured, including unicast, multicast, and broadcast packets.
Drop threshold		Indicates the traffic suppression mode and threshold. This parameter is valid only when traffic suppression is enabled. Traffic suppression modes include: Based on bandwidth percentage Based on packet rate Based on the number of bytes

Set the required parameters.
Click OK to complete the configuration.

Query traffic suppression information.
1. Choose Security > Storm Control > Traffic Suppression in the navigation tree to open the Traffic Suppression page.
2. In the Query area, select an interface type and enter the interface number, and click Query.