Describes the process by which Cisco APIC verifies configuration entries to ensure validity and prevent configuration errors.
Configuration validation is a verification process that
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checks configuration entries in Cisco Application Policy Infrastructure Controller (APIC) to ensure validity
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reduces or eliminates configuration errors by informing users of errors at configuration time instead of raising faults asynchronously, and
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varies in the number of checks performed depending on the release, with newer releases performing more checks before accepting configuration.
Configuration validation modes and behavior
If Cisco APIC accepts the configuration, but the configuration conflicts with existing configurations, Cisco APIC or the leaf switches might raise faults.
Cisco APIC offers configuration import options with different validation modes:
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Atomic mode: Standard configuration import that requires complete validity
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Best Effort mode: Accepts configuration even if portions are not valid, pushing valid portions and ignoring inconsistent portions
For inconsistent portions in Best Effort mode, Cisco APIC issues error messages that you can view using this command:
show snapshot jobs import_job