[mrtg] Incorrect Outbound Counters

Bohnenstiehl, Joe Joe.Bohnenstiehl at wiltel.com
Mon Jul 12 16:31:32 MEST 2004


The IOS we are running causes the outbound counters to spike to extreme values on high speed interfaces.  OC192 interfaces that top out at 10 Gig  can show invalid output data in the multi Terabit range.  This causes the real traffic to appear as a flat line at the bottom of the graph.

I implemented the AbsMax variable in the configuration and it corrected the problem for the OC48 and Gigabit Ethernet interfaces but doesn't work for the OC192s.

Target[Some interface]: \Phsycalint:somestring at somerouter:::::2
MaxBytes[Some interface]: 1244000000
AbsMax[Some interface]: 1244000000

Our MRTG 2.10.13  server is running on Solaris 9  but I'm still using flat files for the collection logs.  I also upgraded perl to 5.8.

Has anyone else seen/fixed this issue.  

Thanks in advance for the help.

Joe Bohnenstiehl

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