G.8273.2 and G.8275.1 Standards

Dear friend!

ITU-T G.8275

ITU-T G.8275.1 is a precise time synchronization telecommunications standard defined based on the IEEE 1588v2 PTP protocol. Compared with IEEE 1588v2, ITU-T G.8275.1 features the following:

Simplifies NE models and source selection algorithms, making the standard more suitable for the telecommunications field.
Defines packets more specifically, facilitating interconnection and interworking.

ITU-T G.8273.2 
IEEE 1588v2 defines only the time synchronization protocol methods, but does not define the synchronization performance. ITU-T G.8273.2 clearly defines the time synchronization performance of each single device from the following aspects: time error, noise tolerance, noise transfer, transient phase response, and holdover.
WDM equipment complies with the ITU-T G.8275.1 and G.8273.2 standards and satisfies the carrier-level time synchronization precision requirements.
ITU-T G.8273.2 has the same application scenario as ITU-T G.8275.1.

Thanks!