[mrtg] Scaling The Graphs For More Meaningful Results

[Steve Shipway]

Firstly, you want to set scaled  mode on the target, which means

Unscaled[_]: n

(The n means 'none' -- this only works on MRTG 2.16 or later though).  If you have any Unscaled[] directives in there already then remove them.  If using Routers2, then interfaces default to Unscaled mode unless oyu do this.  The previous poster had the instructions backwards...

If you are using Routers2 as a frontend to MRTG/RRD, then the 'Rescale' button will cycle through a set of different scaling options to show you the detail.  Also, the 'Compact' display allows you to list all active interfaces on the device and sort them by traffic descending, so you can see the interfaces in order of usage.  Finally, the Incoming and Outgoing summary graphs will display all interfaces on the same graph to allow you to make comparisons.

Steve

________________________________________
From: mrtg-bounces at lists.oetiker.ch [mrtg-bounces at lists.oetiker.ch] On Behalf Of Travis Rabe [trabe at davdgrp.com]
Sent: Saturday, 9 January 2010 7:01 a.m.
To: mrtg at lists.oetiker.ch
Subject: [mrtg] Scaling The Graphs For More Meaningful Results

Hello,

I use MRTG on the three interfaces of my firewall.  I have a WAN, DMA and
LAN.  The WAN interface has a max speed of 1Mbps and while the LAN and DMA
have a max speed og 100Mbps.  When my T1 is maxed out it would be nice to
see which interface is using the bandwidth; however, when I look at the MRTG
graphs for the LAN and the DMZ, they both scale so large that 1Mbs is a
little bump so I cannot determine anything of any value.  My question is, is
there anyway to scale an interface exponentially or in some other fashion to
make these more useful when comparing interfaces with different maximum
values?

Thanks,
Travis


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