NEWER Hydra / Orchid Servers - using mrtg + rrdtool
* one graph, 8 servers, top incoming, bottom outgoing, very useful ...

   NEW Medical Physics - now uses mrtg + rrdtool
* one graph, 7 servers, top incoming, bottom outgoing, very useful ...

NOTE : Graphs are logarithmically scaled !
* this keeps huge spikes in traffic from dominating the overall picture.