The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

14.2.2 Using PTP as a Time Source for NTP

To make the PTP-adjusted system time on an NTP server available to NTP clients, include the following entries in /etc/ntp.conf on the NTP server to define the local system clock as the time reference:

server    127.127.1.0
fudge     127.127.1.0 stratum 0
Note

Do not configure any additional server lines in the file.

For more information, see Section 14.1.1, “Configuring the ntpd Service”.