[mrtg] Re: Interface reference

[Glenn Forbes Fleming Larratt]

I have been thankful time and time again for the "--ifref=ip" option on 
cfgmaker. I had occasion (don't ask why) to replace a Gb subnet uplink
interface with a 10Mb - changing descriptions from G9/0/0 to e8/1/3 on 
my Cisco 7513 - and MRTG didn't even blink, just got the right data from
the right place. The labelling didn't self-correct, but the monitoring
data was right where it needed to be.

I have also found that using "make" for the generation of config files and
indices, and RCS for incremental history of the resulting config files,
streamlines my workload an incredible amount. 

	-g

On Wed, 28 Feb 2001, Martinez, Samson wrote:

> This is all personal opinion, obviously, but I'd like to get an idea of what
> one would consider to be the most "fool-proof" method of identifying
> interfaces in MRTG, one that would require the least amount of config file
> changes should an interface be added/removed from a router, etc. 

> If I add an
> additional Ethernet interface to a 7206, for example, will the existing
> interface numbers be changed? I can imagine that removing one will require
> changes but how about replacing a defective interface? Unfortunately, I do
> not have spare devices I can toy around with so any and all info is
> sincerely appreciated. 
>  
> Regards,
>  
> Samson 
>  
>  
> 
> 
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				Glenn Forbes Fleming Larratt
				Rice University Network Management 
				glratt at rice.edu


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