FortiOS 6 – Configuring storm control

Configuring storm control

Storm control uses the data rate (packets/sec, default 500) of the link to measure traffic activity, preventing traffic on a LAN from being disrupted by a broadcast, multicast, or unicast storm on a port.

When the data rate exceeds the configured threshold, storm control drops excess traffic. You can configure the types of traffic to drop: broadcast, unknown unicast, or multicast.

The storm control settings are global to all of the non-FortiLink ports on the managed switches. Use the following CLI commands to configure storm control:

config switch-controller storm-control set rate <rate> set unknown-unicast (enable | disable) set unknown-multicast (enable | disable) set broadcast (enable | disable)

end

You can override the global storm control settings for a FortiSwitch using the following commands:

config switch-controller managed-switch edit <switch-id> config storm-control set local-override enable

At this point, you can configure the storm control settings that apply to this specific switch.


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