Question 190
The HPE AOS-CX switching case is: A switch learns a device MAC in the wrong VLAN while the engineer only checks interface speed. Which TWO choices together provide the targeted remedy and independent validation? (Select TWO.)
Explanation
Correct Answers
The targeted correction for A switch learns a device MAC in the wrong VLAN while the engineer only checks interface speed is: Correlate operational interface, MAC, VLAN, route and neighbor show output with configuration instead of inferring success from one line of CLI. It reduces the risk that an administratively up interface does not establish that tagging, adjacency or end-to-end forwarding works correctly.
A separate operational validation for A switch learns a device MAC in the wrong VLAN while the engineer only checks interface speed is: A validation log includes link counters, VLAN membership, neighbor state and an end-to-end traffic test for the change. It proves intended behavior instead of accepting configuration presence alone.
Incorrect Answers
This alternative concerns running versus startup configuration and controlled save; its associated risk is: A working session can vanish after a restart, while inadvertently saved emergency settings can persist outside the change window. The observed case A switch learns a device MAC in the wrong VLAN while the engineer only checks interface speed requires the more specific interface and route operational show-command discipline control. The targeted action is: Correlate operational interface, MAC, VLAN, route and neighbor show output with configuration instead of inferring success from one line of CLI.
This alternative concerns aos-cx cli configuration context and verification; its associated risk is: Commands copied from a different platform family or wrong configuration context may be rejected or alter an unintended object. The observed case A switch learns a device MAC in the wrong VLAN while the engineer only checks interface speed requires the more specific interface and route operational show-command discipline control. The targeted action is: Correlate operational interface, MAC, VLAN, route and neighbor show output with configuration instead of inferring success from one line of CLI.
This alternative concerns vsx active gateway and distributed forwarding; its associated risk is: Inconsistent virtual gateways or failed peer topology can cause duplicate-gateway confusion and asymmetric forwarding. The observed case A switch learns a device MAC in the wrong VLAN while the engineer only checks interface speed requires the more specific interface and route operational show-command discipline control. The targeted action is: Correlate operational interface, MAC, VLAN, route and neighbor show output with configuration instead of inferring success from one line of CLI.