[mrtg] Re: Measuring Bandwidth Usage

Jake Colman colman at ppllc.com
Fri Nov 15 15:18:19 MET 2002

    DM> I think we are trying too hard here.  Set MaxBytes1 and MaxBytes2 to
    DM> the appropriate up/download speeds and mrtg by default does the rest
    DM> of the work.  Unless I am missing something blitheringly obvious.
    DM> Now, mrtg is not magic - you do need a counter somewhere.  So, if
    DM> your cablemodem has snmp support, then you can just run cfgmaker,
    DM> tweak the config with the appropriate MaxBytes1 and MaxBytes2
    DM> settings, and away you go.  If your cablemodem doesn't have that
    DM> support, then monitor the port of the switch that you are plugged
    DM> into (You do have an snmp capable switch, right?)

Any idea how do I determine the up/download speed of my cablemodem?  Or of a
wireless access point?

MaxBytes1 and MaxBytes2 are set to up/down speeds for a device and are both
used for a single graphing entry in mrtg?  I would just need to add to that
entry the snmp command necessary to retrieve the appropriate counter from the
device, right?

I do not have an snmp-cabaple switch.  I do have a docsis-capable cablemodel
and an snmp client in my wireless access point.  The cablemodem is connected
one of the NICs in my server.  The other server NIC connects a simple hub to
which my accesspoint connects as well.

Jake Colman                     

Principia Partners LLC                  Phone: (201) 209-2467
Harborside Financial Center               Fax: (201) 946-0320
902 Plaza Two                          E-mail: colman at ppllc.com
Jersey City, NJ 07311                  www.principiapartners.com

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