ovs-ofctl: Document group selection algorithm.

Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Jarno Rajahalme <jarno@ovn.org>

diff --git a/utilities/ovs-ofctl.8.in b/utilities/ovs-ofctl.8.in
index 96232a5003e459c073b1b46e87dfbc0068cc53b6..2e6679ebe98cf68dd91571c809fa28b01c12f172 100644 (file)
--- a/utilities/ovs-ofctl.8.in
+++ b/utilities/ovs-ofctl.8.in
@@ -1960,10 +1960,12 @@ other commands. The following keywords designated the allowed types:
 .IP \fBall\fR
 Execute all buckets in the group.
 .IP \fBselect\fR
-Execute one bucket in the group.
-The switch should select the bucket in such a way that should implement
-equal load sharing is achieved.  The switch may optionally select the
-bucket based on bucket weights.
+Execute one bucket in the group, balancing across the buckets
+according to their weights.  To select a bucket, for each live bucket,
+Open vSwitch hashes flow data with the bucket ID and multiplies by the
+bucket weight to obtain a ``score,'' and then selects the bucket with
+the highest score.  Use \fBselection_method\fR to control the flow
+data used for selection.
 .IP \fBindirect\fR
 Executes the one bucket in the group.
 .IP \fBff\fR