When \fBdl_type\fR and \fBnw_proto\fR take other values, the values of
these settings are ignored (see \fBFlow Syntax\fR above).
.
+.IP \fBtable=\fInumber\fR
+If specified, limits the flow manipulation and flow dump commands to
+only apply to the table with the given \fInumber\fR.
+\fInumber\fR is a number between 0 and 31, inclusive.
+.
+If this field is not specified, for \fBadd-flow\fR, \fBadd-flows\fR,
+\fBmod-flows\fR and \fBdel-flows\fR commands, the switch will choose
+the table for these commands to operate on; for \fBdump-flows\fR and
+\fBdump-aggregate\fR commands, statistics are gathered about flows
+from all tables.
+.IP
+When this field is specified in \fBadd-flow\fR, \fBadd-flows\fR,
+\fBmod-flows\fR and \fBdel-flows\fR commands, it will activate a
+Nicira extension to OpenFlow, which as of this writing is only
+known to be implemented by Open vSwitch.
+.
.PP
The following shorthand notations are also available:
.
\fBout_port=\fIport\fR
If set, a matching flow must include an output action to \fIport\fR.
.
-.PP
-The \fBdump\-flows\fR and \fBdump\-aggregate\fR commands support an
-additional optional field:
-.
-.IP \fBtable=\fInumber\fR
-If specified, limits the flows about which statistics are gathered to
-those in the table with the given \fInumber\fR. Tables are numbered
-as shown by the \fBdump\-tables\fR command.
-.
-If this field is not specified, or if \fInumber\fR is given as
-\fB255\fR, statistics are gathered about flows from all tables.
.
.SS "Table Entry Output"
.