公开(公告)号：US20200220636A1

公开(公告)日：2020-07-09

申请号：US16595322

申请日：2019-10-07

Applicant: ADVA Optical Networking SE

Inventor： Michael RABINOVICH ,  Moshe TOFEF ,  Igal PINCHASOV

IPC: H04J3/06 ,  H04L7/00 ,  G06F1/14 ,  H04L12/26 ,  G06F9/54 ,  H04L29/06

Abstract: There is provided a technique of time delivery in a computing system comprising a system call interface (SCI) located in a kernel space and operatively connected to a time client located in a user space. The technique comprises: using a time agent component located in the user space to measure data indicative of delay in a system time delivery and to derive therefrom a system time delivery error TES2C; using TES2C to enable correction of system time; and sending by the SCI the corrected system time in response to a “Read Clock RT” (RCRT) call received from the time client. The method can further comprise: measuring data indicative of delays in the system time delivery for RCRT calls with different priorities; and in response to a system time request received from the time client, providing the time client with system time corrected per TES2C corresponding to the recognized priority thereof.