[rrd-users] How to graph full interface graphs

Joe Loiacono jloiacon at csc.com
Mon Feb 4 21:37:29 CET 2008

Thanks Simon. Good explanation.

But I was thinking that this might be a standard MRTG process, and I could 
quickly snatch the command. :-)

I'll put it together ...



rrd-users-bounces at lists.oetiker.ch wrote on 02/04/2008 01:50:50 PM:

> Joe Loiacono wrote:
> >The interface graphs I like the best I would describe as 'full'. 
> >They include percentages for usage of total available, and they 
> >include the peak 5-minute values for inbound and outbound on all 
> >graphs other than the 5-minute one itself. Thses preserved paek 
> >vaules are printed in magenta and dark green.
> >
> >Here's an example: http://ensight.eos.nasa.
> gov/FlowViewer/sample_full_MRTG.png
> >
> >I believe MRTG can produce these, but I can't get to the system that 
> >host these graphs to figure out the 'rrdtool graph' command.
> Bear in mind that the "max" can be quite misleading when traffic varies 
a lot.
> What you need to do is :
> create your rrd with RRA functions of both AVERAGE and MAX - you MUST 
> store both to be able to draw the graph.
> Then it's as simple as :
> Draw area for average
> Draw line for max
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