Ignoring Acknowledged Faults

One issue that can pop up when trying to maintain an ACI Fabric is the presence of cosmetic faults that drag our health score down.

For example, let’s say we pre-configure server ports to be members of an EPG, but the servers have yet to be plugged into the fabric. In that case, the health score of the LEAF and TENANT will be affected, even though this is an intentional configuration.

Screen Shot 2017-10-03 at 3.13.45 PM
Fault F0532

As you can see, the fault is causing an impact to the Health Score of LEAF201, which is now at 78. The access port health for port e1/10 is at “0”.

Screen Shot 2017-10-03 at 3.13.20 PM
ACI Fabric Health Score – Prior to enabling “Ignore Acknowledged Faults”

In the past the only way to correct this fault would be to shutdown the interfaces on the LEAF switches (i.e., admin down the interface). However, beginning with APIC 1.2(2h) code and later, we have the ability to ignore the health score implication for faults IF they are acknowledged.

In order to configure this option, go to Fabric > Fabric Policies > Monitoring Policies > Common Policy > Health Score Evaluation Policies > Health Score Evaluation Policy

Click the “Ignore Acknowledged Faults” and submit the configuration.

While the fault will still show as raised, the process of acknowledging the fault will prevent the fault from weighing down the health score.

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Ignore Acknowledged Faults

After the configuration is applied, this has a positive affect on our Health Score for Leaf201, even though the fault is still present.

Screen Shot 2017-10-03 at 3.48.01 PM
ACI Fabric Health Score – After enabling “Ignore Acknowledged Faults”


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