The Cisco switch must have Storm Control configured on all host-facing switchports.
An XCCDF Rule
Description
<VulnDiscussion>A traffic storm occurs when packets flood a LAN, creating excessive traffic and degrading network performance. Traffic storm control prevents network disruption by suppressing ingress traffic when the number of packets reaches a configured threshold levels. Traffic storm control monitors ingress traffic levels on a port and drops traffic when the number of packets reaches the configured threshold level during any one-second interval.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-220687r539671_rule
- Severity
- Low
- References
- Updated
Remediation - Manual Procedure
Configure storm control for each host-facing interface as shown in the example below:
SW1(config)#int range e0/2 – 8
SW1(config-if-range)# storm-control unicast level 50
SW1(config-if-range)# storm-control broadcast level 40