Security Fundamentals Fix ~4 min
Port-security err-disabled Fa0/1: Recover it
Fa0/1 is a port-secured access port (max 1 MAC, violation shutdown). A user quietly plugged a hub with a second laptop into the jack; the violation fired and Fa0/1 went err-disabled. The rogue device has been removed. Bring Fa0/1 back into service.
SW1
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