Hi All, I am facing an issue where SLAVE system time is off by around 25-30sec wrt MASTER system time.
Following is test setup, a. I have connected two DUT's back to back which supports HARDWARE timestamping. b. Changed the date and time on both the side and c. Ran ptp4l command (ptp4l -i eth0 -p /dev/ptp0 -m) on both sides. After ptp4l command, one DUT becomes SLAVE and other becomes GRANDMASTER. Both are able to exchange the ptp messages. I am able to verify that SLAVE PHC is getting synchronized to GRANDMASTER PHC. I also verified that there is no difference between MASTER PHC and MASTER system time,. d. But when I run phc2sys (phc2sys -s /dev/ptp0 -w) on SLAVE side, I could see that SLAVE system time is behind MASTER system time by 25-30sec. Is this issue due to phcsys command ? or anything related to driver. Please lets me know if any other points should be verified. Any other pointers in resolving the issue would be appreciated. Thanks and Regards, Rayagond ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
