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ES3000 User Guide
3-70
3.5.51 Main Menu->QoS->Rate Limiting->Broadcast Storm Control
Configuration Menu
Use the Storm Control Configuration page to set the limitation of broadcast, multicast, and/or DLF
(Destination Look Failure) packets delivered to the CPU. Each kind of packet determines the network
load. When the load reaches a certain threshold, the CPU is busy handling packets and is unable to
respond to other requests (configuration commands or SNMP requests). Available network
bandwidth decreases. The administrator can enable storm control to limit traffic in the networks.
There are three kinds of storm control; DLF, Broadcast, and Multicast.
Storm control can either be Enabled and Disabled. When Enabled, the CPU drops packets beyond the
specified threshold. Otherwise, the CPU processes these packet types without any limitations. The
default setting is Disabled for all three packet types.
DLF: Destination Look Failure packets. DLF packets are broadcast to all ports except
the incoming port.
Broadcast: Packets are delivered to all ports except the incoming port as DLF packets.
Multicast: Packets are delivered to all ports with group membership.