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<p class=MsoNormal><span style='color:#1F497D'>Hello Steve and Jan,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Thanks for your 2
answers.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I’m afraid I
was right </span><span style='font-family:Wingdings;color:#1F497D'>L</span><span
lang=EN-US style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>I could change
mrtg.cfg before each run but I would like do something more “clean”
and if possible limit as much as possible big snmpwalk on our ciscos which have
sometimes 400 or 500 virt interface.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>So to my mind it
should be a very small development to make MRTG uses “IF-MIB::ifAlias”
to reference a target like “IF-MIB::ifDescr” is already used.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>If Tobi has stopped
further development I will have a look if I can patch mrtg.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'>Patrice<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De :</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Steve Shipway
[mailto:s.shipway@auckland.ac.nz] <br>
<b>Envoyé :</b> mardi 2 février 2010 22:09<br>
<b>À :</b> Patrice Blot - FCNET<br>
<b>Cc :</b> mrtg@lists.oetiker.ch<br>
<b>Objet :</b> RE: graphing cisco virtual interface/PPPoE users<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>If the only way to uniquely identify a particular interface on your
device is via the ifAlias then MRTG cannot do this – as you say, the
Target syntax allows name, description, MAC, IP, type and number but not the
Alias. The cfgmaker utility (which can be used to build MRTG configs) can
use ifAlias for descriptions but that’s it.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>The only way to do this I can think of is to write a custom data
collection plugin for MRTG that can do this; then you can make it identify the
required username and select the correct interface counters. Of course
this will require some coding to create the plugin…<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>It would be a good new feature to request for the next version of
MRTG to have it able to use the ifAlias and Cisco description to identify an
interface, but Tobi has indicated that he has stopped further development of
MRTG (other than bug fixes)…<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Steve<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
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