+.IP "\fB\-q \fIid\fR"
+.IQ "\fB\-\-queue=\fIid\fR"
+By default, \fBovs\-controller\fR uses the default OpenFlow queue for
+sending packets and setting up flows. Use one of these options,
+supplying \fIid\fR as an OpenFlow queue ID as a decimal number, to
+instead use that specific queue.
+.IP
+This option may be useful for debugging quality of service setups.
+.