Summary

Recommendation ITU-T G.8275.1/Y.1369.1 contains the ITU-T precision time protocol (PTP) profile for phase and time distribution with full timing support from the network. It provides the necessary details to utilize IEEE 1588 in a manner consistent with the architecture described in Recommendation ITU‑T G.8275/Y.1369.

Amendment 3 provides the following updates:

–           Replace masterOnly procedures with a pointer to the procedures defined in [IEEE 1588-2019]

–           Add new per port notMaster attribute

–           Add indication of datatype for all dataset members (Annex A)

–           Add some notes to dataset tables (Annex A)

–           Enhance Appendix XIV wording related to multiple external PTP ports visible via one PTP port

–           New Appendix XV on considerations of deploying ePRTC and PRTC in the network