New upstream version 18.11.1

[deb_dpdk.git] / doc / guides / nics / i40e.rst

diff --git a/doc/guides/nics/i40e.rst b/doc/guides/nics/i40e.rst
index bfacbd1..40bf0f1 100644 (file)
--- a/doc/guides/nics/i40e.rst
+++ b/doc/guides/nics/i40e.rst
@@ -695,3 +695,9 @@ See :numref:`figure_intel_perf_test_setup` for the performance test setup.
    * Start creating a stream on packet generator.
 
    * Set the Ethernet II type to 0x0800.
+
+Tx bytes affected by the link status change
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+For firmware versions prior to 6.01 for X710 series and 3.33 for X722 series, the tx_bytes statistics data is affected by
+the link down event. Each time the link status changes to down, the tx_bytes decreases 110 bytes.