X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fnics%2Fnull.rst;h=e75abd96d230c518d5cf07328e663119dd8c6a9e;hb=34fd4373ce76efd0236e59397c495762c2ec9e64;hp=405edf07ba566b315d4cd1b75aea5b0b15b47468;hpb=62a667f386fb6df5c2e96cb1e813f9abf6683bb4;p=dpdk.git

diff --git a/doc/guides/nics/null.rst b/doc/guides/nics/null.rst
index 405edf07ba..e75abd96d2 100644
--- a/doc/guides/nics/null.rst
+++ b/doc/guides/nics/null.rst
@@ -14,7 +14,7 @@ Usage
 
 .. code-block:: console
 
-   $RTE_TARGET/app/testpmd -l 0-3 -n 4 --vdev net_null0 --vdev net_null1 -- -i
+   ./<build_dir>/app/dpdk-testpmd -l 0-3 -n 4 --vdev net_null0 --vdev net_null1 -- -i
 
 
 Runtime Config Options
@@ -26,7 +26,7 @@ Runtime Config Options
 
 .. code-block:: console
 
-   $RTE_TARGET/app/testpmd -l 0-3 -n 4 --vdev "net_null0,copy=1" -- -i
+   ./<build_dir>/app/dpdk-testpmd -l 0-3 -n 4 --vdev "net_null0,copy=1" -- -i
 
 - ``size`` [optional, default=64 bytes]
 
@@ -35,5 +35,9 @@ Runtime Config Options
 
 .. code-block:: console
 
-   $RTE_TARGET/app/testpmd -l 0-3 -n 4 --vdev "net_null0,size=256" -- -i
+   ./<build_dir>/app/dpdk-testpmd -l 0-3 -n 4 --vdev "net_null0,size=256" -- -i
 
+- ``no-rx`` [optional, default disabled]
+
+ Makes PMD more like ``/dev/null``. On Rx no packets received, on Tx all packets are freed.
+ This option can't co-exist with ``copy`` option.