[mrtg] Re: MRTG read values units

[Alexander Fichman]

Thanks for the answer.
However, I use 'unscaled' in the .cfg file and I get extremely low values.
~2000 bytes (!) or 350KB for a backbone 100Mbps (12.5MBps) port that I know
is extremely busy! That cannot be. Now I assume (as it is being read
directly from the switch) that the numbers are correct and I have the units
wrong. I have the same problem with a 3com SuperStack II 3300 .
I'm sure there is some way to rectify this, I just don't know how.
I am running MRTG 2.8.8 and my config file is:

######################################################################
# Description: BayStack 350T HW:RevC FW:V1.01 SW:V1.03
#     Contact: Admin
# System Name: IpexSoft
#.....................................................................

Target[192.168.216.253.1]: 1:public at 192.168.216.253
MaxBytes[192.168.216.253.1]: 12500000
Title[192.168.216.253.1]: IpexSoft: BayStack 350T port 1
unscaled[192.168.216.253.1]: dy
PageTop[192.168.216.253.1]: <H1>Traffic Analysis for BayStack 350T - 1
 </H1>
 <TABLE>
   <TR><TD>System:</TD><TD>IpexSoft </TD></TR>
   <TR><TD>Maintainer:</TD><TD>Admin</TD></TR>
   <TR><TD>Interface:</TD><TD>BayStack 350T - 1 (1)</TD></TR>
   <TR><TD>IP:</TD><TD>No hostname defined for IP address
(192.168.216.253)</TD></TR>
   <TR><TD>Max Speed:</TD>
       <TD>12.5 MBytes/s (ethernetCsmacd)</TD></TR>
  </TABLE>

#---------------------------------------------------------------

Target[192.168.216.253.2]: 2:public at 192.168.216.253
.......
......
.....
..
 #---------------------------------------------------------------



-----Original Message-----
From: Aivo Kalu [mailto:Aivo.Kalu at mfa.ee]
Sent: Monday, October 18, 1929 8:28 PM
To: 'Alexander Fichman'
Subject: RE: [mrtg] MRTG read values units


> -----Original Message-----
> From: Alexander Fichman [SMTP:alexf at ipexsoft.co.il]
> Sent: 18. oktoober 1929. A. 19:17
> To:   mrtg at list.ee.ethz.ch
> Subject:      [mrtg] MRTG read values units
>
> Hi.
> I'm new to this list and to MRTG, so bear with me...
> I am setting up MRTG on NT to monitor my small LAN's main switch -
> BayStack
> 350T .
> Cfgmaker produced a working .cfg file of all 100Mb/s ports (16 of them)
> and
> draws the graphs like charm. the monitored objects are (from GetIf2.2):
> .iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifInOctets
> and
> .iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifOutOctets .
> My understanding is that each time scanned, MRTG subtracts the last value
> read from the new one. My question is, what does the number conceived
> represent? Bytes? Kbytes?
        [Aivo Kalu]  InOctets means bytes. Dependingly of your configuration
files, K means 1000 units or 1024 units, so your graphs must show 30
KBps=240 Kbps, which isn't so low speed. You can do some testing with ping
for example. Ping some host in your network with big packets (maximum 65000
bytes) and watch for the corresponding line at your graphs.

        Aivo Kalu, network administrator, Ministry of Foreign Affairs
        Rävala pst. 9, Tallinn, 15049, Estonia
        aivo at vm.ee, phone +372 6317339, fax +372 6137123

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