app/testpmd: add parameter to start forwarding Tx first

[dpdk.git] / doc / guides / testpmd_app_ug / run_app.rst

diff --git a/doc/guides/testpmd_app_ug/run_app.rst b/doc/guides/testpmd_app_ug/run_app.rst
index 2a43214e2998590b373014446314d28a56707cb0..3159398a92569909214800beee8b1058812c14b8 100644 (file)
--- a/doc/guides/testpmd_app_ug/run_app.rst
+++ b/doc/guides/testpmd_app_ug/run_app.rst
@@ -188,6 +188,14 @@ The commandline options are:
 
     Start forwarding on initialization.
 
+*   ``--tx-first``
+
+    Start forwarding, after sending a burst of packets first.
+
+.. Note::
+
+   This flag should be only used in non-interactive mode.
+
 *   ``--nb-cores=N``
 
     Set the number of forwarding cores,