300-435: Automating and Programming Cisco Enterprise Solutions

For on-change subscriptions, Cisco's model-driven telemetry implementation requires the dampening-period to be explicitly set to 0, indicating that no dampening period is applied. This holds true whether the on-change publication is configured via the standards-based YANG-push (RFC 8641) mechanism or through the OpenConfig telemetry model — no other value is supported for on-change publications in either case, since dampening (which aggregates and delays updates) is not compatible with immediate on-change notification behavior.