C H A P T E R 25 Configuring Port-Based Traffic Control; Default Storm Control Configuration; Configuring Storm Control And Threshold Levels - Cisco Catalyst 3120 Software Manual

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Configuring Port-Based Traffic Control

You use the storm-control interface configuration commands to set the threshold value for each traffic

By default, unicast, broadcast, and multicast storm control are disabled on the switch interfaces; that is,

the suppression level is 100 percent.

You configure storm control on a port and enter the threshold level that you want to be used for a

particular type of traffic.

However, because of hardware limitations and the way in which packets of different sizes are counted,

threshold percentages are approximations. Depending on the sizes of the packets making up the

incoming traffic, the actual enforced threshold might differ from the configured level by several

percentage points.

Storm control is supported on physical interfaces. You can also configure storm control on an EtherChannel.

When storm control is configured on an EtherChannel, the storm control settings propagate to the

EtherChannel physical interfaces.

Beginning in privileged EXEC mode, follow these steps to storm control and threshold levels:

configure terminal

interface interface-id

Enter global configuration mode.

Specify the interface to be configured, and enter interface

configuration mode.

Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide

Configuring Storm Control

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