.. index:: pair: group; Turning on/off Rx/Tx checksum offloading.
.. _doxid-group__offload-simple__csum:

Turning on/off Rx/Tx checksum offloading.
=========================================

.. toctree::
	:hidden:

Check that data can be sent or received after changing checksum offloading settings.



#. Establish connection between a pair of sockets of type **sock_type** on IUT and Tester.

#. Make sure that the tested checksum offloading is enabled.

#. If **rx_csum** is ``TRUE``, send some data from Tester to IUT, otherwise - from IUT to Tester. Receive and check the sent data.

#. Disable the tested checksum offloading.

#. Repeat the step with sending/receiving/checking data.

#. Re-enable the tested checksum offloading.

#. Repeat the step with sending/receiving/checking data.



.. rubric:: Parameters:

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

	*
		- env

		- 
		  Testing environment.
		  
		  * :ref:`env.peer2peer <doxid-group__env-peer2peer>`
		  
		  * :ref:`env.peer2peer_ipv6 <doxid-group__env-peer2peer__ipv6>`

	*
		- sock_type

		- 
		  Socket type:
		  
		  * :ref:`sock_stream_dgram <doxid-group__sock__stream__dgram>`

	*
		- rx_csum

		- If ``TRUE``, Rx checksum offloading is checked; otherwise Tx is checked.