ACI Node state – undiscovered Vs Unknown

 

  Undiscovered:

  • You’ve manually added a node ID in APIC.
  • The switch is not yet connected or powered
    on.
  • Could be due to cabling issues or
    incorrect port configuration.

  Unknown:

  • The switch is physically connected and
    sending LLDP packets.
  • APIC detects it but doesn’t have a
    matching Node ID policy.
  • You need to assign a Node ID to complete
    discovery.