Timing and Synchronization
Overview
Use this document to configure, monitor, and troubleshoot timing and synchronization capabilities in OcNOS. It covers support for SyncE, IEEE 1588-v2 PTP (including default and specialized profiles such as G.8265.1, G.8275.1, G.8275.2, SMPTE, and IWF), clock types (boundary, grandmaster, transparent, inter-working), and practical examples to maintain network timing accuracy in service-provider deployments.
Target Users
This document targets network timing engineers, synchronization specialists, and service provider operations teams deploying time-sensitive applications. It assumes familiarity with Ethernet networking, time distribution principles, and basic OcNOS command usage.
Key Capabilities
This document walks through timing configurations and tools across key areas:
• SyncE interface and clock-source commands
• PTP clock profiles: default (OCN), Telecom (G.8275.1 or G.8275.2), Power (G.8265.1), SMPTE 2059-2, and Interworking Function (IWF)
• Clock roles: grandmaster, boundary, transparent, and inter-working (IWF mode for PTP to SyncE or vice versa conversion)
• SyncE holdover and quality level management
• PTP clock-port, transport, delay mechanisms, and TLV settings
• Diagnostic commands, troubleshooting workflows, and timing health assessment
For detailed information on timing and synchronization topics and configurations, refer to the
OcNOS Timing and Synchronization Guide.