MRTG and SNMP on HP/UX 11.0

[dan dobbs]

Greetings, all. I'm trying to do some traffic monitoring of my L-Class boxes with MRTG. However, MRTG doesn't seem to dig my interface values (my ifSpeed.1 value is 100000000, and it gives me 'This Interface not configured administratively not UP has an unrealistic speed setting' errors and comments it out). As I'm brand spankin' new at SNMP, should I be mucking about in my settings, and if so, where do they live? MRTG seems to work fine for my Cisco Routers and such.

Thanks a million!

-dd

[S.K. Chan · Accepted solution]

I remembered a few years back when I used to do NNM consulting, I did come across "similar" situation. If I can recall what happened is the older version of of the 100BaseT driver displays the speed as 100000000 which actually should be 100 (100Mbit of course). As a result any attempt to retrieve the MIB value ifSpeed by any network mgt software failed because the software expect 100, not 100000000. Do not change anything, I'm very sure there is a patch to fix this representation, most probably "LAN cumulative" patch. Do a search on the keyword "ifSpeed" from HP Database depot (depending on yur OS version) and I think it should return soe patches. Check the description of those patches, more than likely you'll get your fix.

[Ron Kinner]

I assume you are running cfgmaker.

Try running it with one or both of the following options:
--global "MaxBytes[_]: 12500000" --no-down

You can always go into the mrtg.cfg file and remove the #'s and set the MaxBytes to 12500000 by hand.

If that doesn't work there may be something funny with your SNMP values. You might want to use one of the programs which queries specific MIBs to see what it is actually returning. I use getif which is a free program for window boxes but I'm sure there are many others.

Ron