X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=doc%2Frrdgraph.pod;h=9060bd831b97d695edbe6d1ac3392bd79174ee4d;hb=127fb65e9cdbf2343344d1e9c1af9874cae8113e;hp=59d3ac4ad65910b62e2519ae6abecacc451d0c87;hpb=4414926d4c2ab02e84ffe1d55d26b27632cb18aa;p=rrdtool.git

diff --git a/doc/rrdgraph.pod b/doc/rrdgraph.pod
index 59d3ac4..9060bd8 100644
--- a/doc/rrdgraph.pod
+++ b/doc/rrdgraph.pod
@@ -123,6 +123,14 @@ maximum y-axis from the actual minimum and maximum data values. Our example
 would display slightly less than C<260-0.001> to slightly more than
 C<260+0.001> (this feature was contributed by Sasha Mikheev).
 
+[B<-J>|B<--alt-autoscale-min>]
+
+Where C<--alt-autoscale> will modify both the absolute maximum AND minimum
+values, this option will only affect the minimum value. The maximum
+value, if not defined on the command line, will be 0. This option can
+be useful when graphing router traffic when the WAN line uses compression,
+and thus the throughput may be higher than the WAN line speed.
+
 [B<-M>|B<--alt-autoscale-max>]
 
 Where C<--alt-autoscale> will modify both the absolute maximum AND minimum