ITU-T G.7721.1 PDF

This Recommendation specifies the synchronization information models and data models for transport network elements (NEs) to support specific interface protocols and specific management and control (MC) functions.

The specific MC functions for synchronization covered by this Recommendation are specified in [ITU-T G.8265.1], [ITU-T G.8275.1] and [ITU-T G.8275.2].

The information models are interface protocol neutral and specified using the unified modelling language (UML). The information models of this Recommendation are derived through pruning and refactoring from the [ITU-T G.7711] core information model and the [ITU-T G.7721] synchronization base information model.

The data models are interface protocol specific and are directly derived from these information models. The specific data models considered in this Recommendation include, but are not limited to, yet another next generation (YANG) data models.

The PTP telecom profile YANG module defined in this Recommendation augments the PTP YANG module defined in [IETF RFC 8575] for the management of the precision time protocol (PTP) defined in [IEEE 1588-2008].

The UML information model and YANG data model in this version of the Recommendation covers the PTP telecom profiles defined in Amendment 1 (2019) to [ITU-T G.8265.1] (Edition 2.2), [ITU-T G.8275.1] (Edition 3.0), and [ITU-T G.8275.2] Edition 2.0 (2021), which are based on [IEEE 1588-2008].