[mrtg] Re: Alteon 180E Total Sessions

Tue Aug 27 15:57:24 MEST 2002

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You know, the more I think about the math, the more that makes sense. I 
guess that's really what you'd want to see, anyways...

Thanks for clearing that up for me. :)

  Jon Hartman
  Network Engineering
  Verizon Internet Operations
  Phone:
  Cell: 
214-513-6792
940-453-1111 

tony bourke <tony at vegan.net>
08/26/2002 04:18 PM

        To:     <jon.hartman at vol.verizon.com>
        cc:     <mrtg at list.ee.ethz.ch>
        Subject:        Re: [mrtg] Re: Alteon 180E Total Sessions

Hi Jon,

Yes, MRTG divides by the number of seconds since the last check, which is 
typically around 300 seconds. 

Have you been running MRTG for a couple of polling intervals?  I don't see
any problem with the absmax or max.  Perhaps do a snmpget of the OID raw
in 5 minute intervals and compare, to see if the OID is returning the
wrong value.

Tony

On Mon, 26 Aug 2002 jon.hartman at verizon.com wrote:

> Content-Type: text/plain; charset="us-ascii"
> 
> As I understand the gauge option, it is used only when the counter is a 
> meter and not incrementing. In this case, it's total number of sessions, 

> so if I'm reading it correctly, I don't want to specify gauge. 
Basically, 
> It's a counter32 value that constantly increments according to the 
number 
> of sessions that have been load-balanced since the stats have last been 
> cleared. The 5-minute value should equal about 6000, but I'm getting 
> results between 10 and 20, instead.
> 
> Is MRTG taking the 6000 and dividing it by 300 to get the number per 
> second?
> 
> 
> 
>   Jon Hartman
>   Network Engineering
>   Verizon Internet Operations
>   Phone:
>   Cell: 
> 214-513-6792
> 940-453-1111 
> 
> 
> 
> 
> 
> tony bourke <tony at vegan.net>
> 08/26/2002 03:59 PM
> 
> 
>         To:     <jon.hartman at vol.verizon.com>
>         cc:     <mrtg at list.ee.ethz.ch>
>         Subject:        Re: [mrtg] Alteon 180E Total Sessions
> 
> 
> Hi Jon,
> 
> Are you looking to just see the raw number of packets tranversed 
> graphed?  Or are you looking for a rate.
> 
> If you're looking for the raw number, put "growright,gauge" in the 
options 
> 
> field.  That will prevent any math from being done.
> 
> Hope that helps,
> 
> Tony
> 
> On Mon, 26 Aug 2002 
> jon.hartman at verizon.com wrote:
> 
> > Content-Type: text/plain; charset="us-ascii"
> > 
> > Greetings. I'm attempting to monitor an alteon 180E that is 
> load-balancing 
> > via UDP stateless. Since it's set to stateless, there's no current 
value 
> 
> > counter, but it can tell me how many packets it has load-balanced. 
This 
> is 
> > for RADIUS, so I'm fine with that. The string I'm monitoring is: 
> > .1.3.6.1.4.1.1872.2.1.8.2.7.1.3.1 which after 5 minutes works out to 
be 
> > about 6000, yet when monitoring, the graphs read between 10 and 20. 
I'm 
> > using the following config to monitor it.
> > 
> > Target[ctnacerad1_curly]: 
> > 
> 
1.3.6.1.4.1.1872.2.1.8.2.7.1.3.1&1.3.6.1.4.1.1872.2.1.8.2.7.1.3.1:IOCINS at dfwaceres1:
> > AbsMax[ctnacerad1_curly]: 100000
> > MaxBytes[ctnacerad1_curly]: 100000
> > Title[ctnacerad1_curly]: Active Sessions - RADIUS (Curly) <I>virt 1 - 
> > ctnacerad1</I>
> > PageTop[ctnacerad1_curly]: <H1>Active Sessions - RADIUS (Curly) 
<I>virt 
> 1 
> > - ctnacerad1</I></H1>
> > Options[ctnacerad1_curly]: growright
> > YLegend[ctnacerad1_curly]: sessions
> > ShortLegend[ctnacerad1_curly]: sessions
> > Legend1[ctnacerad1_curly]: sessions:
> > Legend2[ctnacerad1_curly]:
> > LegendI[ctnacerad1_curly]: sessions:
> > LegendO[ctnacerad1_curly]:
> > 
> > After reading the configs, it appears that it is dividing the number 
> (new 
> > total sessions - old total sessions) by some time factor. What is that 

> > factor and should I then just put a factor option in to multiply the 
> value 
> > to cancel out the division?
> > 
> > Thanks in advance,
> > 
> > 
> > 
> >   Jon Hartman
> >   Network Engineering
> >   Verizon Internet Operations
> >   Phone:
> >   Cell: 
> > 214-513-6792
> > 940-453-1111 
> > 
> > 
> > 
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> > 
> > --
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Tony Bourke tony at vegan.net

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