-\fBovs\-controller\fR controls one or more OpenFlow switches, specified as
-one or more of the following OpenFlow connection methods:
+\fBtest\-controller\fR is a simple OpenFlow controller. It is very
+easy to set up, so it may be suitable for initial testing of
+connectivity between an OpenFlow switch and a controller. It may also
+be useful for developer testing and debugging of some Open vSwitch
+features.
+.PP
+\fBtest\-controller\fR is not a general-purpose OpenFlow controller.
+It does not make sense to deploy it routinely or in production.
+\fBtest\-controller\fR does not provide any features that are not
+built into Open vSwitch, and lacks many that are built in to Open
+vSwitch, so adding it to an Open vSwitch deployment actually reduces
+functionality and performance while increasing latency.
+.PP
+\fBtest\-controller\fR manages any number of remote switches over
+OpenFlow protocol, causing them to function as L2 MAC-learning
+switches or hub. The switches it controls are specified as one or
+more of the following OpenFlow connection methods: