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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hard to say without some examples.<br>
<br>
However, the usual reasons for this sort of issues would be one or more of --<br>
<br>
1. A GigE port being monitored using SNMPv1. You need to use SNMPv2 to get the 64bit counters if you want to see more than about 160Mbps. Have ':::::2' appended to your Target definition to force SNMPv2.<br>
2. Confusion between rates in bytes/sec and bits/sec giving values 8x or 1/8x what they should be. Us the 'bits' option to show values in bits/sec.<br>
3. Incorrect MaxBytes definition (possibly pulled from incorrect OID) causing higher values to be displayed as zero.<br>
<br>
Steve<br>
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<div style="font-family:Tahoma; font-size:13px"><strong>Steve Shipway</strong></div>
<div style="font-family:Tahoma; font-size:13px">University of Auckland ITS</div>
<div style="font-family:Tahoma; font-size:13px"><em>UNIX Systems Design Lead</em></div>
<div style="font-family:Tahoma; font-size:13px"><a href="mailto:s.shipway@auckland.ac.nz">s.shipway@auckland.ac.nz</a></div>
<div style="font-family:Tahoma; font-size:13px">Ph: +64 9 373 7599 ext 86487</div>
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<div style="direction: ltr;" id="divRpF833855"><font color="#000000" face="Tahoma" size="2"><b>From:</b> mrtg [mrtg-bounces+s.shipway=auckland.ac.nz@lists.oetiker.ch] on behalf of Stephen D. Rasmussen [srasmussen@sfasu.edu]<br>
<b>Sent:</b> Wednesday, 28 January 2015 6:10 a.m.<br>
<b>To:</b> mrtg@lists.oetiker.ch<br>
<b>Subject:</b> [mrtg] MRTG not reporting accurate usage info for Cisco interfaces<br>
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<p class="MsoNormal">I have just installed MRTG and am monitoring a number of Cisco Ethernet interfaces (physical interfaces). The data being reported on my usage of these interfaces is not even close to accurate. Does anyone know why this may be, and what
setting I may have incorrect which could cause this behavior?</p>
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<p class="MsoNormal">Thanks in advance,</p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#522398">Stephen Rasmussen</span></b><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#522398"><br>
<b>System Network Administrator<br>
</b></span><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:black">Telecommunications and Networking</span><span style="color:#1F497D"></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:black">Stephen F. Austin State University</span><span style="color:#1F497D"></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:black">P.O. Box 6095, SFA Station</span><span style="color:#1F497D"></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:black">Nacogdoches, Texas 75962-6095</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:black">936-468-1246</span><span style="color:#1F497D"></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:black"><a href="mailto:srasmussen@sfasu.edu" target="_blank"><span style="color:blue">srasmussen@sfasu.edu</span></a></span><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:#522398">
| </span><span style="font-size:10.0pt; font-family:"Arial","sans-serif"; color:black"><a href="http://www.sfasu.edu/" target="_blank"><span style="color:blue">www.sfasu.edu</span></a></span></p>
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<p class="MsoNormal" style=""><b><span style="font-size:10.0pt; font-family:"Arial-BoldMT","serif"; color:#5F497A">“The views and opinions expressed in this message are my own and do not necessarily reflect the views and opinions of Stephen F. Austin State
University, its Board of Regents, or the State of Texas.”</span></b><b><span style="font-size:12.0pt; color:#5F497A"></span></b></p>
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