Method and apparatus associated with clocking synchronization are disclosed herein. In various embodiment, a method for communication comprises: entering a clock training period, on successful performance of clock training handshake; entering a start static phase measurement (SSPM) sequence of clock training period, receiving a recovered clock; and processing the recovered clock to determine parts-per-million (PPM) differences, to be subsequently applied to compensate for the PPM differences determined during subsequent clocking synchronization. Linking training is performed after the subsequent clocking synchronization. In various embodiments, clocking synchronization comprises SSC synchronization. Other embodiments are also described and claimed.