Cisco Systems A9014CFD manual Verifying Storm Control, 38-4

Chapter 38 Storm Control

Configuring Storm Control

	Command			Purpose
Step 4	storm-control {action {shutdown			Configures broadcast, multicast, or unknown unicast storm control.
	trap} {broadcast multicast			• action—Specifies the action to take when a storm occurs on a
	unicast} {level {level bps
	bps-levelpps pps-level}}			port.
				• shutdown—Disables the port during a storm.
	Example:			• trap—Sends an SNMP trap.
	Router(config-if)# storm-control
				• broadcast—Configures broadcast storm control.
	broadcast level 70
				• multicast—Configures multicast storm control.
				• unicast—Configures unknown unicast storm control.
				• level—Specifies the rising threshold level for broadcast,
				multicast, or unicast traffic as a percentage of the bandwidth.
				The valid range is from 1 to 100 percent. There can also be a
				fractional part in the level ranging from 0 to 99, which is
				expressed in percentage. So a level of 49.99 on a
				GigabitEthernet interface means that once the number of
				broadcast (or configured type) packets on the interface exceeds
				499.90Mbps, all the exceeding packets are dropped.
				• level—Threshold level.
				• bps—Specifies the suppression level in bits per second.
				• bps-level—Threshold level.
				• pps—Specifies the suppression level in packets per second.
				• pps-level—Threshold level.
Step 5	end			Exits the interface configuration mode and enters the privileged
				EXEC mode.
	Example:
	Router(config-if)# end
		Note	To disable Storm Control feature, use the no storm-controlcommand.

Verifying Storm Control

To verify the Storm Control feature configuration, use the show command described in the following example.

Router# show storm-control broadcast

Interface	Type	Filter State	Level		Current
---------	------	-------------	-----------		----------
Gi0/1	Bcast	Forwarding	200	pps	0	pps
Gi0/1	Mcast	Forwarding	300	pps	0	pps

! The “current” field is not supported for storm control.

	Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
38-4	OL-23826-09