[SOLVED] ptpd2 not working on a peer-to-peer master-slave connection

ptpd2 not working on a peer-to-peer master-slave connection

I have a couple of x86 machines connected through a direct 10GbE connection. Interfaces are up and working (i.e. the machines can ping each other). Both machines run CentOS Linux.

I need to setup ptpd to synchronize the machines in order to get timestamps with a microsecond timing resolution.

I have:

installed ptpd with yum
edited the /etc/ptpd2.conf file (putting one machine as masteronly and the other as slaveonly)
run the service through service ptpd2 start

The ptpd components communicate (verified either through through tcpdump and the ptp log files). Moreover, the /var/log/ptpd2_kernelclock.drift file shows the measured dritf.

However, date shows that times are not synchronized and a simple client-server test shows that timestamps are not synchronized.

Any idea what is wrong ?

Solution

The only solution we've found has been to reinstall ptpd through yum. For some (very weird) reason, re-installing ptpd with the same configuration file solved the wrong behavior.