// Module included in the following assemblies:
//
// * networking/ptp/ptp-cloud-events-consumer-dev-reference-v2.adoc
// * networking/ptp/ptp-cloud-events-consumer-dev-reference.adoc

:_mod-docs-content-type: CONCEPT
[id="cnf-about-ptp-fast-event-notifications-framework-{ptp-events-rest-api}_{context}"]
= About the PTP fast event notifications framework

Use the Precision Time Protocol (PTP) fast event REST API v2 to subscribe cluster applications to PTP events that the bare-metal cluster node generates.

[NOTE]
====
The fast events notifications framework uses a REST API for communication. The PTP events REST API v2 is based on the _O-RAN O-Cloud Notification API Specification for Event Consumers 4.0_ that is available from link:https://orandownloadsweb.azurewebsites.net/specifications[O-RAN ALLIANCE Specifications].
====
