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Re: [NV-L] Incorrect bandwidth data above 100MB

To: Tivoli NetView Discussions <nv-l@lists.ca.ibm.com>
Subject: Re: [NV-L] Incorrect bandwidth data above 100MB
From: John M Gatrell <John.Gatrell@uk.ibm.com>
Date: Thu, 9 Sep 2010 10:23:06 +0100
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Yes, I'm seeing something similar. I'm running on AIX NetView 715 Fixpack3.
The graphs did not look right for me when I started monitoring a router with a Gigabit interface and a Bandwidth 200000 (200 Mbit)
statement. The previous router, which had a bandwidth 100000 statement, was graphed correctly.

I'm using an entry in mibExpr.conf namely
BandwidthUtilOut \
"8*100* ifOutOctets / ifSpeed" \
        .1.3.6.1.2.1.2.2.1.16. \
        .1.3.6.1.2.1.2.2.1.5. / \
        800 *

I tried dividing the ifSpeed by 800 first and this gave more believable results.
Your mileage may vary. I tried using:

NewUtilOut \
"ifOutOctets/(ifSpeed/800)" \
        .1.3.6.1.2.1.2.2.1.16. \
        .1.3.6.1.2.1.2.2.1.5. \
        800 / /

John Gatrell





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