[mrtg] Re: Aggregating ports via mrtg

[Jeromme_Lawler at crosstimbers.com]

You are going the right direction.  The question is asked all the time.  It's in
the archives....

I agree - Perhaps the documentation could be update with this info... ( I guess
Tobi would do that)

To quote Marc, (I think)

>The Correct syntax is:
>OID:community at IP<space>+<space>OID:community at IP<space>+ .....

>Ex:
>1.3.6.1.4.1.9.9.116.1.3.6.1.2.131080:public at 10.0.0.1 +
>1.3.6.1.4.1.9.9.116.1.3.6.1.2.131081:public at 10.0.0.1 + ....

>You May need to repeat the OID and separate the 2 OID's by "&" like this

>1.3.6.1.4.1.9.9.116.1.3.6.1.2.131080&1.3.6.1.4.1.9.9.116.1.3.6.1.2.131080:pu
>blic at 10.0.0.1 +
>1.3.6.1.4.1.9.9.116.1.3.6.1.2.131081&1.3.6.1.4.1.9.9.116.1.3.6.1.2.131081:pu
>blic at 10.0.0.1 + ....









"Kevin Hammond" <kevin at matrixtek.com> on 05/30/2001 10:47:37 AM
                                                              
                                                              
                                                              
  To:          cpt2 at daimlerchrysler.com, mrtg at list.ee.ethz.ch 
                                                              
  cc:          (bcc: Jeromme Lawler/FTW/CTOC)                 
                                                              
                                                              
                                                              
  Subject      [mrtg] Re: Aggregating ports via mrtg          
  :                                                           
                                                              







Now that you mention that, I found that part of the documentation in the
reference doc.  BTW, I did read the doc quite a few times before I posted
the question.  Personally, the documentation is not the best I have seen.
It would be nice to see the Per Target syntax in use in a cfgmaker line.

I am still new to mrtg, so I could easily use the mathmatic operations to
aggregate the reports.  I assume I could use some threshold setting or
something to that effect to set a backplane value, otherwise I would have to
pull the max bytes per interface and aggregate that as well.

Am I at least going in the right direction?

Thank You,
Kevin

-----Original Message-----
From: cpt2 at daimlerchrysler.com [mailto:cpt2 at daimlerchrysler.com]
Sent: Wednesday, May 30, 2001 10:03 AM
To: mrtg at list.ee.ethz.ch
Cc: Kevin G. Hammond
Subject: Re: [mrtg] Aggregating ports via mrtg



This is straight from the documentation, perhaps it pays to read it first.


You can also use several statements in a mathematical expression. This could
be used to aggregate both B channels in an
     ISDN connection or multiple T1s that are aggregated into a single
channel for greater bandwidth. Note the whitespace
     arround the target definitions.

     Example:

      Target[ezwf]: 2:public at wellfleetA + 1:public at wellfleetA  *
4:public at ciscoF




Sent by:  mrtg-bounce at list.ee.ethz.ch


To:   <mrtg at list.ee.ethz.ch>
cc:

Subject:  [mrtg] Aggregating ports via mrtg


Is there any way to aggregate multiple ports on a switch via mrtg to get an
overall bandwidth analysis for an entire switch?  For instance, If I had a
24 p0rt 10/100 switch, could I pull all interfaces, and add them together,
then add the total bandwidth for each interface and graph that #?  Going
futher with this thought, say a device had a max speed backplane, could you
graph that # as a percentage against the backplane?

Thank You,
Kevin Hammond


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