.. index:: pair: group; Changing RSS hash key.
.. _doxid-group__rss-hash__key__set:

Changing RSS hash key.
======================

.. toctree::
	:hidden:

Check that RSS hash key change can result in changing of Rx queue which processes packets of a given connection.

#. Create a pair of connected sockets of type **sock_type** on IUT and Tester.

#. Send a few packets from Tester over the created connection. Check that XDP hook reports that all packets go through the Rx queue determined by the current hash key value.

#. Set RSS hash key on IUT interface to a different value such that Toeplitz hash for packets sent from Tester now points to a different RSS indirection table entry which specifies a different Rx queue.

#. Send again a few packets from Tester. Check that XDP hook reports that all the packets were processed by the new Rx queue.



.. 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:
		  
		  * ``SOCK_STREAM``
		  
		  * ``SOCK_DGRAM``