[mrtg] Re: Few Questions

[Kruepke]

Markus,

About question (1):  Renaming the files will do the trick, if you change the name of the target (the name being the part in [] in the config file: Target[router.1]).  What I do is name the targets using a logical name, rather than the default created by cfgmaker.  So in this case, I sould have a target like this: Target[router.serial0] or Target[router.acct_lan].  This way if you move an interface, or it changes to a new OID after a reload of the router, the names stay the same.  Then you wouldn't have to worry about renaming files.

About questions (2):  I know this one came up recently and should be in the archives.  Go to http://buckaroo.xo.com/MRTG/ for Matt Petach's MRTG helpers.  One of them will zero out sections of a log file that you specify.  This will resolve the problem of the straight line in the graph.  If you want this behavior to be permanent, use the 'Options[_]: unknaszero' command in the config file.  This will make unknown points on the graphs go to zero.

Keith

----- Original Message ----- 
From: <Markus.Forrer at cs.coop.ch>
To: <mrtg at list.ee.ethz.ch>
Sent: Tuesday, April 25, 2000 3:23 AM
Subject: [mrtg] Few Questions


Hy all

Just two Questions

1. After changing the port of a interface on a router, I will get the
following message.

>>I will not update this graph for the moment. Maybe your Router has
>>changed the port to interface mapping. This can happen when new
>>Interfaces are added to the router or when it is rebooted.

Now, the problem. How can I hold the old statistic?? At the moment I simple
moved the old files matching the new
filenames. It works, but I don't think, that this is the right way.

2. Just an Example....

Over the weekend mrtg was not able to get data from a router. On Monday I
fixed the problem.
Now mrtg fill up the graphs, for the time, where it was not able to get
data, with the last value.

But I want, that on that time, the graphs show nothing. How can I make
this????

Greetings

Markus Forrer

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