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Inaccessible Management Port on Cluster Switch
https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Inaccessible_Management_Port_on_Cluster_Switch
Applies to Cluster Switch BES-53248 Issue The management port on the cluster switch is down Cable has been reseated/replaced Switch reboot did not help to recover the port

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