[mrtg] Re: Target[_]

[Jerry Heidtke]

You're right, you could be wrong...

Mrtg reads the lines in the config "one at a time" (in other words,
sequentially). If you have a default set with, for example "Options[_]:
growright, nopercent", and later on you have Options[_]: growright, guage",
the first set will be applied to any targets defined between the two default
Option lines, and the second set will apply to those that follow.

In other words, setting a default applies to all following targets, unless
specifically overridden.

You could have "Options[_]: growright, nopercent" at the top of your config.
In the middle, you could have "Options[someservercpu]: growright, gauge".
For the target someservercpu, "growright, gauge" will be applied. For
targets before and after this, "growright, nopercent" will be applied. 

To answer an earlier question (If you define a global variable as having
"Options[_]: growright, bits", and you later define
"Options[router.here.com]: bits", will growright still be assumed and come
into effect on target [router.here.com] or will that specific graph "grow
left"???) 

With "Options[router.here.com]: bits", only "bits" will be in effect for the
target router.here.com. Nothing is assumed.

Jerry


-----Original Message-----
From: Dominic Irrcher [mailto:dirrcher at colosseum.com]
Sent: Monday, December 09, 2002 4:13 PM
To: 'Meyer, Douglas S.'; 'Dave Morrow'; 'mrtg at list.ee.ethz.ch'
Subject: [mrtg] Re: Target[_]



from what i gather, the global will have precidence as it came before
(before the first interface) any of the interface options you put in.

i could be wrong, mrtg might be reading the lines in the config one at a
time, which would mean that whatever options you specify for an interface
will come into effect.




Dominic Irrcher
B.Sc, MCP, CCDA
Web Administrator
Colosseum Online Inc.
416.739.7873
------------------------------------------------
Nothing is ever a complete failure. It can always be used as a bad example. 




-----Original Message-----
From: Meyer, Douglas S. [mailto:doug at dougm.com]
Sent: Monday, December 09, 2002 5:02 PM
To: Dominic Irrcher; 'Dave Morrow'; mrtg at list.ee.ethz.ch
Subject: RE: [mrtg] Re: Target[_]


Which begs the question:  If you define a global variable as having
"Options[_]: growright, bits", and you later define
"Options[router.here.com]: bits", will growright still be assumed and
come into effect on target [router.here.com] or will that specific graph
"grow left"???

I read the Default Values example on the config reference...it still
doesn't make sense to me.


> -----Original Message-----
> From: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch]
On
> Behalf Of Dominic Irrcher
> Sent: Monday, December 09, 2002 3:26 PM
> To: 'Dave Morrow'; 'mrtg at list.ee.ethz.ch'
> Subject: [mrtg] Re: Target[_]
> 
> 
> its a global variable
> 
> like the options variable: Options[_]: growright, bits
> 
> just means that you won't have to enter the options line for every
> interface
> in your config (which could be very tedious if you have alot of
> interfaces)
> 
> 
> 
> 
> Dominic Irrcher
> B.Sc, MCP, CCDA
> Web Administrator
> Colosseum Online Inc.
> 416.739.7873
> ------------------------------------------------
> Nothing is ever a complete failure. It can always be used as a bad
> example.
> 
> 
> 
> 
> -----Original Message-----
> From: mrtg-bounce at list.ee.ethz.ch
[mailto:mrtg-bounce at list.ee.ethz.ch]On
> Behalf Of Dave Morrow
> Sent: Monday, December 09, 2002 3:18 PM
> To: mrtg at list.ee.ethz.ch
> Subject: [mrtg] Target[_]
> 
> 
> 
> I see people using [_] as a target name. What exactly does this do?
> 
> David Morrow
> Network Administrator
> Autodata Solutions Company
> Ph: (519) 951-6067 Fax: (519) 451-6615
> mailto: David.Morrow at autodata.net
> 
> 
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