.. index:: pair: group; Use sfptpd to synchronize clocks
.. _doxid-group__ptp-sfptpd:

Use sfptpd to synchronize clocks
================================

.. toctree::
	:hidden:

Check that sfptpd can be used to synchronize clocks across network.

Scenarios: X3-PTP012.



#. Find out PTP device associated with the IUT interface, check that it can be opened to be sure that PTP is supported.

#. Compute sum of statistics from 'ethtool -S' output having 'ptp\_' prefix.

#. Disable **NTP** daemon on IUT and Tester.

#. Start **sfptpd** on IUT and Tester. On IUT it is configured to be a slave synchronizing time with master on Tester.

#. Wait until both adapter clock and system clock are reported to be in-sync by **sfptpd** on IUT.

#. Again compute sum of statistics from 'ethtool -S' output having 'ptp\_' prefix. Check that after running sfptpd this sum increased.

Yurij Plotnikov `Yurij.Plotnikov@arknetworks.am <mailto:Yurij.Plotnikov@arknetworks.am>`__



.. rubric:: Parameters:

.. list-table::
	:widths: 20 80

	*
		- env

		- 
		  Testing environment:
		  
		  * :ref:`env.peer2peer <doxid-group__env-peer2peer>`

	*
		- master_cfg

		- Configuration file for sfptpd as a PTP master

	*
		- slave_cfg

		- Configuration file for sfptpd as a PTP slave