[mrtg] Re: MRTG problem

[Dana Hudes]

btw my previous note I neglected to multiply by 1000000

40 Megabits/second raw = 5000000 octets/second.
300000000 octets/minute
4500000000 octets in 15 minutes.
0xC388D00
again, well within limit of Counter32.
I haven't looked at MIB-II in a long time. My copy of the Simple Book is the 2nd edition,
which uses the newer IP-MIB (different OID).

Hmm.
I find I have a pile of MIBs on my system from installing SNMP. I checked MIB-II.
The definition in question:
 ifInOctets OBJECT-TYPE
              SYNTAX  Counter
              ACCESS  read-only


              STATUS  mandatory
              DESCRIPTION
                      "The total number of octets received on the
                      interface, including framing characters."
              ::= { ifEntry 10 }


I'm going to dig around for the definition of Counter.
Meanwhile, I suggest that you make your interval 10 minutes and see what happens.

----- Original Message ----- 
From: "Peter Kringle" <pkringle at planetnet.org>
To: <mrtg at list.ee.ethz.ch>
Sent: Tuesday, September 25, 2001 10:42 AM
Subject: [mrtg] Re: MRTG problem


> 
> The sampling is at 15 minites.
> 
> And MAXBYTES is set to
> MaxBytes[onvoy-ds3]:5863640
> I also tried
> MaxBytes[onvoy-ds3]:58636400
> just to see if it would help, which it didn't.
> 
> Any suggestions?
> 
> On Tue, 25 Sep 2001, Dana Hudes wrote:
> 
> > counter rollover?
> > what is your sampling interval?
> > IfInOctets is not a 64 bit number, only 32.
> > Still that should suffice for a 5 minute interval.
> >
> > Full 45mbit/second inbound is 5.625 Megabytes/second.
> > 1687.5 octets in 5 minutes is clearly well within even a 16-bit counter.
> >
> > ----- Original Message -----
> > From: "Peter Kringle" <pkringle at planetnet.org>
> > To: "mrtg" <mrtg at list.ee.ethz.ch>
> > Sent: Tuesday, September 25, 2001 10:22 AM
> > Subject: [mrtg] MRTG problem
> >
> >
> > >
> > > I have noticed a very interesting problem with my DS3 connnection and
> > > MRTG.  Every night when the usage is high (above 30Mb) the graphs go from
> > > 30Mb incoming to 2Mb incoming.  Outgoing is not effective.  Now I know
> > > this is not true, so does anyone know what would cause the graphs to do
> > > this?
> > >
> > > --
> > > Peter Kringle (DarkKnight)
> > > http://www.barrenwasteland.com
> > >
> > >
> > >
> > > --
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> 
> -- 
> Peter Kringle (DarkKnight)
> http://www.barrenwasteland.com
> 
> 
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