Default Storm Control Configuration; Configuring Storm Control And Threshold Levels - Cisco Catalyst 3560-X Software Configuration Manual

Chapter 1 Configuring Port-Based Traffic Control
You use the storm-control interface configuration commands to set the threshold value for each traffic
type.

Default Storm Control Configuration

By default, unicast, broadcast, and multicast storm control are disabled on the switch interfaces; that is,
the suppression level is 100 percent.

Configuring Storm Control and Threshold Levels

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.
Note
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:
Command
Step 1 configure terminal
Step 2
interface interface-id
OL-25303-03
Purpose
Enter global configuration mode.
Specify the interface to be configured, and enter interface
configuration mode.
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
Configuring Storm Control
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