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Software Configuration Guide—Release 15.0(2)SG
OL-23818-01
Chapter 50 Configuring Storm Control
Disabling Broadcast Storm Control
Enabling Multicast Suppression on All Other Supervisor Engines
Multicast suppression can be enabled on a WS-X4516, WS-X4013+10GE, WS-X4516-10GE,
WS-C4948, and WS-C4948-10GE supervisor engines for all ports that have storm control enabled.
Multicast suppression applies to all ports that have broadcast suppression configured on them. It also
applies to ports that are configured for broadcast storm-control in the future; you cannot suppress
multicast traffic only.
Separate thresholds cannot be provided for broadcast and/or multicast traffic. The threshold you
configure for broadcast suppression applies to both the incoming multicast traffic and broadcast traffic.
To enable multicast suppression on WS-X4516, WS-X4013+10GE, WS-X4516-10GE, and WS-C4948
supervisor engines, perform this task:
The following example shows how to enable multicast suppression on ports that have broadcast
suppression already enabled:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# storm-control broadcast include multicast
Switch(config)# end
Switch#
Disabling Broadcast Storm Control
To disable storm control, perform this task:
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# interface interface-id
Enters interface configuration mode and enter the port to
configure.
Step 3
Switch(config-if)# storm-control broadcast
include multicast
Enable multicast suppression.
Step 4
Switch(config-if)# exit
Returns to configuration mode.
Step 5
Switch(config)# end
Returns to privileged EXEC mode.
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# interface interface-id
Enters interface configuration mode and enter the port to
configure.
Step 3
Switch(config-if)# no storm-control
broadcast level
Disables port storm control.
Step 4
Switch(config-if)# no storm-control action
{shutdown | trap}
Disables the specified storm control action and returns to
default filter action.
Step 5
Switch(config-if)# exit
Returns to configuration mode.
Step 6
Switch(config)# end
Returns to privileged EXEC mode.
