3 hands-on Storm Control scenarios you build in your own Cisco Modeling Labs instance and grade against the answer key. Focused Storm Control configuration and troubleshooting practice for CCNA and CCNP.
Harden the campus access edge by capping broadcast traffic per-port with storm control. In this lab you will apply a broadcast ceiling on the user-facing access ports only, choosing a shutdown action if exceeded, and verify that normal host connectivity remains intact. The uplink to the default gateway/DHCP server is trusted and must not be rate-limited.
Harden the Layer-2 access edge by limiting multicast and unknown-unicast floods on host-facing ports with a non-disruptive trap action. You will apply storm-control multicast and unicast thresholds to SW1 access interfaces while leaving the uplink trusted and unrestricted for gateway/DHCP. Verify the configuration with show commands and end-to-end host reachability.
CCNP Layer 2 Security Hardening, Lab 9/10. You will enable automatic errdisable recovery on a campus access switch so ports shut down by Layer-2 security (Dynamic ARP Inspection, DHCP rate-limit, or storm control) can return to service automatically after a safe interval. The switch already enforces DHCP snooping with a correct trust boundary, DAI validation, and broadcast/multicast/unicast storm-control with shutdown actions. Your job: turn on errdisable auto-recovery for arp-inspection, dhcp-rate-limit, and storm-control, and set the interval to 60 seconds. Verify with show errdisable recovery.
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