Frequency Correction Files

Enhanced PTP User Guide (UG1602)

Document ID
UG1602
Release Date
2022-10-18
Revision
1.0 English

Each freq-correction file contains the frequency correction values used to discipline a clock. The following table describes the values in the file:

Table 1. File: freq-correction-<UUID>
Name Description
freq-correction-<UUID> This identifier is constructed from the hardware address of the clock port.
value

This is the frequency correction value used to discipline the clock. The value is updated once per minute when the clock is in sync with its synchronization time source.

This file persists over server reboot and sfptpd restart. Following either event, the frequency correction value is used to recommence disciplining of the clock ensuring faster re-convergence.