+Command-line Options
+--------------------
+
+The application supports the following command-line options.
+
+* ``--buf-size=N``
+
+ Set the data size of the mbufs used to N bytes, where N < 65536.
+ The default value is 2048.
+
+* ``--fwd-mode=mode``
+
+ Set the packet forwarding mode as ``file-trans``, ``txonly``,
+ ``rxonly`` or ``iofwd``.
+
+* ``--nb-desc=N``
+
+ Set number of descriptors of queue as N, namely queue size,
+ where 64 <= N <= 1024. The default value is 1024.
+
+* ``--txfreet=N``
+
+ Set the transmit free threshold of TX rings to N, where 0 <= N <=
+ the value of ``--nb-desc``. The default value is 256.
+
+* ``--burst=N``
+
+ Set the number of packets per burst to N, where 1 <= N <= 32.
+ The default value is 32.
+
+* ``--qp=N``
+
+ Set the number of queues as N, where qp > 0. The default value is 1.
+