| Answers Explanation & Hints:
Error-disabled mode is a way for a switch to automatically shut down a port that is causing problems, and usually requires manual intervention from an administrator to restore the port. When port security is configured to use the shutdown violation mode, it will put the port into the error-disabled mode when the maximum number of MAC addresses is exceeded. Likewise, BPDU guard will put the port into error-disabled mode if a BPDU arrives on a PortFast enabled interface. Storm control will only put the port into the error-disabled mode when configured with the shutdown option. The trap option will simply create an SNMP log message. |