Summary

Recommendation ITU-T G.8265.1/Y.1365.1 contains the ITU-T precision time protocol (PTP) profile for frequency distribution without timing support from the network (unicast mode). It provides the necessary details to utilize IEEE 1588 in a manner consistent with the architecture described in Recommendation ITU-T G.8265/Y.1365. This edition of the Recommendation defines the PTP profile for unicast mode only. Future editions of the Recommendation will contain a separate profile for a mixed unicast/multicast case.

Corrigendum 1 corrects the specification format of the logInterMessageInterval parameter that specified the minimum message period for the telecom profile for frequency, and corrects text to clarify that only negotiated unicast mode is used.