// Module included in the following assemblies:
//
// * scalability_and_performance/ztp_far_edge/ztp-reference-cluster-configuration-for-vdu.adoc

:_mod-docs-content-type: CONCEPT
[id="ztp-sno-du-configuring-ptp_{context}"]
= PTP

[role="_abstract"]
{sno-caps} clusters use Precision Time Protocol (PTP) for network time synchronization.
The following example `PtpConfig` custom resources (CRs) illustrate configurations for ordinary clocks, boundary clocks, and Telecom Grandmaster clocks on supported Intel Ethernet hardware.
You must select the profile that matches your qualified GNR-D hardware layout and complete interface renaming prerequisites before you apply Granite Rapids-D Telecom Grandmaster YAML on Intel Granite Rapids-D servers.

.Recommended PTP ordinary clock configuration (`PtpConfigSlave.yaml`)
[source,yaml]
----
include::snippets/ztp_PtpConfigSlave.yaml[]
----


.Recommended boundary clock configuration (`PtpConfigBoundary.yaml`)
[source,yaml]
----
include::snippets/ztp_PtpConfigBoundary.yaml[]
----

.Recommended PTP Westport Channel e810 grandmaster clock configuration (`PtpConfigGmWpc.yaml`)
[source,yaml]
----
include::snippets/ztp_PtpConfigGmWpc.yaml[]
----

:FeatureName: Telecom Grandmaster clock configuration on Intel Granite Rapids-D (GNR-D) hardware
include::snippets/technology-preview.adoc[]
:!FeatureName:

.Recommended PTP Granite Rapids-D Telecom Grandmaster clock configuration (`PtpConfigGnrdTGM.yaml`)
[source,yaml]
----
include::snippets/ptp_PtpConfigGnrdTGM.yaml[]
----

The following optional `PtpOperatorConfig` CR configures PTP events reporting for the node.

.Recommended PTP events configuration (`PtpOperatorConfigForEvent.yaml`)
[source,yaml]
----
include::snippets/ztp_PtpOperatorConfigForEvent.yaml[]
----

[role="_additional-resources"]
.Additional resources

* xref:../networking/advanced_networking/ptp/configuring-ptp.adoc#configuring-linuxptp-services-as-grandmaster-clock-gnrd_configuring-ptp[Configuring linuxptp services as a Telecom Grandmaster clock on Intel Granite Rapids-D hardware]
