.TP
\fB\-v\fImodule\fR[\fB:\fIfacility\fR[\fB:\fIlevel\fR]], \fB\-\-verbose=\fImodule\fR[\fB:\fIfacility\fR[\fB:\fIlevel\fR]]
.
Sets the logging level for \fImodule\fR in \fIfacility\fR to
\fIlevel\fR:
.
.RS
.IP \(bu
\fImodule\fR may be any valid module name (as displayed by the
\fB\-\-list\fR action on \fBovs\-appctl\fR(8)), or the special name
\fBANY\fR to set the logging levels for all modules.
.
.IP \(bu
\fIfacility\fR may be \fBsyslog\fR, \fBconsole\fR, or \fBfile\fR to
set the levels for logging to the system log, the console, or a file
respectively, or \fBANY\fR to set the logging levels for both
facilities.  If it is omitted, \fIfacility\fR defaults to \fBANY\fR.
.IP
Regardless of the log levels set for \fBfile\fR, logging to a file
will not take place unless \fB\-\-log\-file\fR is also specified (see
below).
.
.IP \(bu 
\fIlevel\fR must be one of \fBoff\fR, \fBemer\fR, \fBerr\fR, \fBwarn\fR,
\fBinfo\fR, or
\fBdbg\fR, designating the minimum severity of a message for it to be
logged.  If it is omitted, \fIlevel\fR defaults to \fBdbg\fR.  See
\fBovs\-appctl\fR(8) for a definition of each log level.
.RE
.
.TP
\fB\-v\fR, \fB\-\-verbose\fR
Sets the maximum logging verbosity level, equivalent to
\fB\-\-verbose=ANY:ANY:dbg\fR.
.
.TP
\fB\-vPATTERN:\fIfacility\fB:\fIpattern\fR, \fB\-\-verbose=PATTERN:\fIfacility\fB:\fIpattern\fR
Sets the log pattern for \fIfacility\fR to \fIpattern\fR.  Refer to
\fBovs\-appctl\fR(8) for a description of the valid syntax for \fIpattern\fR.
.
.TP
\fB\-\-log\-file\fR[\fB=\fIfile\fR]
Enables logging to a file.  If \fIfile\fR is specified, then it is
used as the exact name for the log file.  The default log file name
used if \fIfile\fR is omitted is \fB@LOGDIR@/\*(PN.log\fR.