Cisco Catalyst 4500 Series Software Configuration Manual page 1693

Chapter 65 Configuring Storm Control
Command or Action
Step 1
Switch# configure terminal
Step 2
Switch(config)# interface interface-id
Step 3
Switch(config-if)# storm-control
broadcast level {high-level | bps bps
[k | m | g] | pps pps [k | m | g]}
Step 4
Switch(config-if)# storm-control action
{shutdown | trap}
Step 5
Switch(config-if)# exit
Step 6
Switch(config)# end
Step 7
Switch# show storm-control [interface]
broadcast
Step 8
Switch# copy running-config
startup-config
This example shows how to enable storm control on an interface and verify configuration:
Switch# configure terminal
Enter configuration commands, one per line.
Switch(config)# interface gigabitethernet 2/1
Switch(config-if)# storm-control broadcast level bps 100k
Switch(config-if)# end
Switch# show storm-control gigabitethernet 2/1
Interface
---------
Filter State Broadcast Multicast Level
------------- --------- --------- -----
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Purpose
Enters global configuration mode.
Enters interface configuration mode and enters the port to configure.
Configures broadcast storm control. The keywords and arguments
are described here.
high-level—Specifies the upper threshold levels for broadcast
•
traffic as a percentage (up to two decimal places) of the
bandwidth. The port blocks traffic that exceeds this level. The
range is from 0 to 100.
For the Catalyst 4500-X Series Switch, on ports
Note
operating at 1Gigabit, thresholds less than 0.02% are not
supported.
bps bps—Specifies the threshold level for broadcast traffic in
•
bits per second (bps) (up to one decimal place). The port blocks
only the traffic that exceeds this level. The range is 0.0 to
10000000000.0.
• pps pps—Specifies the threshold level for broadcast traffic in
packets per second (pps) (up to one decimal place). The port
blocks all traffic when traffic utilization exceeds this level. The
range is 0.0 to 10000000000.0.
(Optional) [k | m | g]—Specifies the metric suffixes for large
•
number thresholds, in bps and pps settings.
Specifies the action to be taken when a storm is detected.
The default is to filter out the broadcast traffic and not to send out
traps.
The shutdown keyword sets the port to the error-disable state during
a storm. If the recover interval is not set, the port remains in
shutdown state.
Returns to configuration mode.
Returns to privileged EXEC mode.
Displays the number of packets suppressed.
(Optional) Saves your entries in the configuration file.
End with CNTL/Z.
Enabling Broadcast Storm Control
65-3