storm-control level

To set the suppression level for traffic storm control, use the storm-control level command. To turn off the suppression mode or revert to the default, use the no form of this command.

storm-control { broadcast | multicast | unicast } level percentage [. fraction ]

no storm-control { broadcast | multicast | unicast } level

Syntax Description

Specifies the broadcast traffic.
Specifies the multicast traffic.
Specifies the unicast traffic.
level percentage
Specifies the percentage of the suppression level. The range is from 0 to 100 percent.
(Optional) Fraction of the suppression level. The range is from 0 to 99.

Command Default

All packets are passed.

Command Modes

Interface configuration mode

Command History

This command was introduced.

Usage Guidelines

Enter the storm-control level command to enable traffic storm control on the interface, configure the traffic storm-control level, and apply the traffic storm-control level to all traffic storm-control modes that are enabled on the interface.

The period (.) is required when you enter the fractional-suppression level.

The suppression level is a percentage of the total bandwidth. A threshold value of 100 percent means that no limit is placed on traffic. A threshold value of 0 or 0.0 (fractional) percent means that all specified traffic is blocked on a port.

Use the show interfaces counters storm-control command to display the discard count.

Use one of the following methods to turn off suppression for the specified traffic type:


This example shows how to enable suppression of broadcast traffic and set the suppression threshold level:

switch(config-if)# storm-control broadcast level 30

This example shows how to disable the suppression mode for multicast traffic:

switch(config-if)# no storm-control multicast level

Related Commands

show interface
Displays the storm-control suppression counters for an interface.
show running-config
Displays the configuration of the interface.