syntax of \fIflows\fR.
.TP
-\fBmonitor \fIswitch\fR [\fImiss-len\fR [\fIsend-exp]]
+\fBmonitor \fIswitch\fR [\fImiss-len\fR]
Connects to \fIswitch\fR and prints to the console all OpenFlow
messages received. Usually, \fIswitch\fR should specify a connection
named on \fBovs\-openflowd\fR(8)'s \fB-l\fR or \fB--listen\fR command line
\fBovs\-ofctl monitor\fR client connection unless a nonzero value is
specified on this argument.
-If \fIsend-exp\fR is specified as \fB1\fR, \fBovs\-ofctl\fR will also
-request to be sent flow expiration messages. If this argument is
-omitted, or \fB0\fR is specified, then \fRovs\-ofctl\fR will not request
-flow expirations.
-
This command may be useful for debugging switch or controller
implementations.