[mrtg] Re: mrtg graph names are useless/switch issue?

Peter Glanville peter_glanville at cuk.canon.co.uk
Mon Jul 29 10:31:58 MEST 2002

The final part is the interface number. You obviously have a stack of
101 is Unit 1, port 01
322 would be unit 3 port 22
'port' numbers above 25 are SLIP, trunks etc.
interfaces below 100  and above 1000 are things like VLANs
If you walk the MIB with a browser (using Getif or whatever), ifDescr in
the ifTable gives you the name which can help interpret what you want.

Peter Glanville
Network Analyst - ICtS, Canon UK

                    <kcnorden at yahoo.c       To:     mrtg at list.ee.ethz.ch                                                                         
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                    Sent by:                Subject:     [mrtg] mrtg graph names are useless/switch issue?                                       
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                    26/07/02 22:24                                                                                                               

the graphs which are created by mrtg are named with
 addresses which don't help me.  I believe this is due
 to a switch and/or snmp issue, but need some help.
for instance, I have mrtg pointed at my 3com
 superstack 3300 switch.  it shows graphs for all the way to  obviously, my internal ip
address of my switch is  This naming
structure seems reminsent of NAT, but I am not sure.
 I have specified "ifref=ip" in my cfg file, but I
really need a more descriptive way to view these
results.  RIght now, I don't know what port is 101 or
441.  Any ideas?  Your help is greatly appreciated.

Casey Norden
 IS Technician

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