[mrtg] Re: [rrd-users] Re: gathering statistics from firewall/switch

[Paul C. Williamson]

RRDTool does not collect.  MRTG collects.  If you want to gather the same info, using RRDTool for your backend, you can still use MRTG to poll and collect the data.  Too bad RRDTool was a question of months.  I converted 17,000 targets in 2 hours.

If you don't use MRTG, why did you say MRTG is installed on another box?

I still don't understand why it's a question of months.  Just install MRTG and tell 
it to use RRDTool for it's backend.  And let MRTG switch the data over from the old .log format to the new .rrd format.  It happens on the fly.  No 
intervention other than telling MRTG to use a different storage medium.

The best place to find out what you can use to put data into RRDTool is:

http://people.ee.ethz.ch/~oetiker/webtools/rrdtool/

To find out about why it's better to use RRDTool for MRTG's backend, look here:

http://people.ee.ethz.ch/~oetiker/webtools/mrtg/mrtg-rrd.html

I explained it in quite a bit of detail for my own conversion here:

http://www.geocities.com/paulcwilliamson/mrtg/rateup2rrd.html 

Using RRDTool is very cool.  Using MRTG as the collector is nice, but 
there are other collectors, or "frontends", available here:

http://people.ee.ethz.ch/~oetiker/webtools/rrdtool/rrdworld/index.html


And you can write your own if you want.

Paul

>>> Nuno Emanuel Rodrigues <nuno.erodrigues at optimus.pt> 01/30/02 02:05PM >>>
Tks for your answer, but to be honest wasnt a big help.

The non-firewall stuff data is sent from hundreds of different scripts.. on
many different machines...and MRTG is not installed on the same machine as
RRDTOOL... so as you can imagine doing the migration from MRTG statistics to
RRDTOOL wasnt a question of hours.. but.. a question of months....

I dont know how MRTG works, since i only use RRDTOOL, but i know MRTG could
collect data from switchs/firewalls just reading a config file, so the
question was if RRDTOOL could do the same.

If RRDTOOL could not collect data from Firewalls/Switchs, i would expect
some directions on how to gather the data.....thats why i mentioned snmpget
command.
So if someone can point me some directions (urls maybe) i will be grateful.

Thank you.

> -----Original Message-----
> From:	Paul C. Williamson [SMTP:pwilliamson at mandtbank.com] 
> Sent:	quarta-feira, 30 de Janeiro de 2002 18:43
> To:	rrd-users at list.ee.ethz.ch; Nuno Emanuel Rodrigues
> Subject:	[rrd-users] Re: gathering statistics from firewall/switch
> 
> 
> I don't know if I want to go there, but how do you collect data now for > the non-firewall stuff?  You do realize MRTG provides 3 separate functions
> - 
> data collection, data sotrage and data display, right?  You can replace > collection with something else, storage with RRDTool, and calls to display
> via RRDTool with yet something else, right?  Or, you can keep MRTG 
> as the collector, RRDTool as the storage medium, and some other tool 
> to call the display functionality from RRDTool...
> 
> You do know that to switch from MRTG to RRDTool as the back end takes 
> a grand total (once RRDTool is installed) of maybe an hour, depending on
> how 
> many configs you have to switch, right?  
> 
> Use any collector (even MRTG) you want.  Use one you write yourself...
> RRDTool does not care, as long as it gets the data every "step" seconds...
> 
> 


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