[mrtg] Zero values when using ifOperHack

Barry Young byoung at europe.chep.com
Thu Jun 22 15:45:52 MEST 2000

I am trying to monitor the number of active ISDN calls by checking
each ISDN sub-interface to see if it is up or down.

According to the MRTG documentation, ifOperHack returns 1 for up and
0 for down.  So, I am using this to combine all interfaces on a Cisco
router and show the number of active ISDN interfaces.

Syntax is as follows:-

Target[xxx]: ifOperHack.3:public at ipaddress +
             ifOperHack.4:public at ipaddress +
           ifOperHack.6:public at ipaddress +
            ifOperHack.7:public at ipaddress

What am I doing wrong?  Any assistance gratefully appreciated.

Barry Young
European Networks Manager
CHEP International

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