The reason that fault code F0546 raises is due to a non-configured port or port not associated with EPG/Infra once had a neighboring device plugged in but was later unplugged. The switch is looking for a neighboring device since it previously had one. You could follow one of the two options to prevent F0546 from impacting the health score.
Option 1: Squelching fault code F0546. This should work on any ACI code release.
Log into the APIC GUI
Click on Fabric
Click on Access Policies
Click on Monitoring Policies
Click on default
Select Fault Severity Assignment Policies
Click on Edit icon
Select Physical Interface Runtime State (ethpm) (ethpm.PhysIf)
Submit
Click on Monitoring Object
Select Physical Interface Runtime State (ethpm) (ethpm.PhysIf)
Click Create
Select Code as F0546 [fltEthpmIfPortDownNoInfra]
Select Initial Severity as Squelched
Select Target Severity as Inherit
Click Update
Any future (non-configured) ports that go up/down will no longer raise the fault at all. Any F0546 code that is currently raised will require further action. You need to plug a device into the faulted port to clear it out. Unplugging the port (after the fault clears) should not raise the fault again. Reboot the leaf may actually clear the current faults too.
Option 2: Allow acknowledged faults to not have any weight on health score. This may require ACI code releases 1.2(2) and later.
2a. Log in to the APIC GUI and navigate to Fabric > Fabric Policies > Monitoring Policies > Common Policy > Health Score Evaluation Policies > Health Score Evaluation Policy
2b. In the properties pane, you will see “Ignore Acknowledged Faults”. Enable this setting.
2c. Go to the fault and check the “acknowledge” box.
The fault will still raise; however acknowledging the fault (and acknowledging any fault) will prevent the fault from weighing down the health score.
