.SH DESCRIPTION
Open vSwitch daemons accept certain commands at runtime to control their
behavior and query their settings. Every daemon accepts a common set of
-commands documented under \fBCOMMON COMMANDS\fR below, and
+commands documented under \fBCOMMON COMMANDS\fR below. Some daemons
+support additional commands documented in their own manpages.
\fBovs\-vswitchd\fR in particular accepts a number of additional
commands documented in \fBovs\-vswitchd\fR(8).
.PP
The number of milliseconds elapsed from the start of the application
to the time the message was logged.
.
+.IP \fB%t\fR
+The subprogram name, that is, an identifying name for the process or
+thread that emitted the log message, such as \fBmonitor\fR for the
+process used for \fB\-\-monitor\fR or \fBmain\fR for the primary
+process or thread in a program.
+.
+.IP \fB%T\fR
+The subprogram name enclosed in parentheses, e.g. \fB(monitor)\fR, or
+the empty string for the primary process or thread in a program.
+.
.IP \fB%%\fR
A literal \fB%\fR.
.RE
The default pattern for console and file output is \fB%D{%Y-%m-%dT
%H:%M:%SZ}|%05N|%c|%p|%m\fR; for syslog output, \fB%05N|%c|%p|%m\fR.
.
+.IP
+Daemons written in Python (e.g. \fBovs\-xapi\-sync\fR,
+\fBovs\-monitor\-ipsec) do not allow control over the log pattern.
+.
.IP "\fBvlog/reopen\fR"
Causes the daemon to close and reopen its log file. (This
is useful after rotating log files, to cause a new log file to be
.
.SH "SEE ALSO"
.
-\fBovs\-appctl\fR can control the following daemons:
+\fBovs\-appctl\fR can control all Open vSwitch daemons, including:
.BR ovs\-vswitchd (8),
-.BR ovs\-controller (8),
-.BR ovs\-brcompatd (8).
+and
+.BR ovsdb\-server (8).