Administrator Guide

Security Commands 1043
storm-control broadcast
Use the storm-control broadcast command to enable broadcast storm
recovery mode for a specific interface. Use the no form of the command to
disable storm control or to return the configuration to the default.
Syntax
storm-control broadcast [{level level | rate rate | action {shutdown | trap}]
no storm-control broadcast [level| rate | action]
• level— The configured rate as a percentage of link bandwidth (Range: 0-
100)
•
rate — The configured rate in packets per second. (Range: 0-14880000)
•
action shutdown —Places the interface in the D-disable state if the
threshold is exceeded.
•
action trap —Logs a message and issue a trap if the threshold is exceeded.
Default Configuration
By default, broadcast storm control is disabled on all physical interfaces.
If broadcast storm-control is enabled, the rate of L2 broadcast traffic received
on an interface increases beyond the configured threshold, traffic will be
dropped.
The default threshold for broadcast traffic is 5% of link bandwidth.
The default behavior is to rate limit (drop) traffic exceeding the configured
threshold.
There is no default action.
Command Mode
Interface Configuration (Ethernet) mode, Interface Range mode
User Guidelines
Broadcast storm control can only be enabled on physical interfaces. It cannot
be configured on port channels.
Setting the level, rate or action enables broadcast storm control.
2CSNXXX_SWUM204.book Page 1043 Monday, January 25, 2016 1:25 PM