Storm Control

Storm control stops the traffic on a Local Area Network from being disrupted by a broadcast, multicast, or unicast storm on a port. Storm control is applicable for physical interfaces and is used to restrict the unicast, broadcast and multicast ingress traffic on the Layer2 interfaces.

Fig 1: Storm Control

Storm Control Configurations

Networkeducative-Switch# configure terminal

Networkeducative-Switch(config)# interface fastethernet 0/1

Networkeducative-Switch(config-if)# switchport port-security

Networkeducative-Switch(config-if)# spanning-tree portfast

Networkeducative-Switch(config-if)# spanning-tree bpduguard enable

Networkeducative-Switch(config-if)# switchport port-security violation shutdown

Networkeducative-Switch(config-if)# storm-control broadcast level 20.00

Networkeducative-Switch(config-if)# storm-control multicast level 60.00

Networkeducative-Switch(config-if)# storm-control action shutdown

Networkeducative-Switch(config-if)# switchport port-security maC-address sticky

Networkeducative-Switch(config-if)# Switchport port-security maximum 2

Networkeducative-Switch(config-if)# storm-control unicast level 80.00

Networkeducative-Switch(config-if)# exit

How to disable storm control on interface ?

Networkeducative-Switch# configure terminal

Networkeducative-Switch(config)# interface fastethernet 0/1

Networkeducative-Switch(config-if) # no storm-control broadcast level

Networkeducative-Switch(config-if)# exit