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Catalyst 3550 Multilayer Switch Software Configuration Guide
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Chapter 21 Configuring Port-Based Traffic Control
Configuring Storm Control
To disable storm control, use the no storm-control broadcast level, no storm-control multicast level,
or no storm-control unicast level interface configuration command. This example shows how to set the
multicast storm control level at 70.5 percent on Fast Ethernet interface 17 and verify the configuration:
Switch# configure terminal
Switch(config)# interface fastethernet0/17
Switch(config-if)# storm-control multicast level 70.5
Switch(config-if)# end
Switch# show storm-control fastethernet0/17 multicast
Interface Filter State Level Current
--------- ------------- ------- -------
Fa0/17 Forwarding 70.50% 0.00%
Disabling Storm Control
Beginning in privileged EXEC mode, follow these steps to disable storm control on an interface:
This example shows how to disable the multicast storm control on Fast Ethernet interface 17 and verify
the configuration:
Switch# configure terminal
Switch(config)# interface fastethernet0/17
Switch(config-if)# no storm-control multicast level
Switch(config-if)# end
Step 5
storm-control unicast level level [.level]
Specify the unicast traffic suppression level for an interface as a
percentage of total bandwidth. The level can be from 1 to 100; the
optional fraction of a level can be from 0 to 99. A threshold value
of 100 percent means that no limit is placed on broadcast traffic. A
value of 0.0 means that all unicast traffic on that port is blocked.
Step 6
end
Return to privileged EXEC mode.
Step 7
show storm-control [interface-id] [broadcast |
multicast | unicast]
Verify the storm control suppression levels set on the interface for
the specified traffic type. If you do not enter a traffic type,
broadcast storm control settings appear.
Step 8
copy running-config startup-config
(Optional) Save your entries in the configuration file.
Command
Purpose
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
interface interface-id
Specify the type and number of the physical interface to configure, for
example gigabitethernet0/1, and enter interface configuration mode.
Step 3
no storm-control broadcast level
Disable broadcast storm control on the interface.
Step 4
no storm-control multicast level
Disable multicast storm control on the interface.
Step 5
no storm-control unicast level
Disable unicast storm control on the interface.
Step 6
end
Return to privileged EXEC mode.
Step 7
show storm-control [interface-id]
[broadcast | multicast | unicast]
Verify that there are no storm control suppression levels set on the
interface for the specified traffic type. If you do not enter a traffic
type, broadcast storm control settings appear.
Step 8
copy running-config startup-config
(Optional) Save your entries in the configuration file.