When troubleshooting issues in Cisco ACI, it is important to be familiar with the various fault codes that can be generated. Here is a list of some of the most common fault codes and their meaning:
Connection Error - This fault is generated when there is a problem with the connection between the APIC and the ACI fabric. For example, if the APIC is not able to communicate with an ACI leaf switch, this fault will be generated.
Hardware Error - This fault is generated when there is a problem with the hardware of the ACI fabric. For example, if a switch fails or a link goes down, this fault will be generated.
Security Error - This fault is generated when there is a problem with the security configuration of the ACI fabric. For example, if there is a misconfigured ACL, this fault will be generated.
System Error - This fault is generated when there is a problem with the ACI fabric itself. For example, if the system is overloaded or there is a software issue, this fault will be generated.
If you see any of these fault codes in the ACI fabric, it is important to investigate and resolve the issue as soon as possible.
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