Hard to say without some examples. However, the usual reasons for this sort of issues would be one or more of --
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. 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. 3. Incorrect MaxBytes definition (possibly pulled from incorrect OID) causing higher values to be displayed as zero. Steve Steve Shipway University of Auckland ITS UNIX Systems Design Lead [email protected]<mailto:[email protected]> Ph: +64 9 373 7599 ext 86487 ________________________________ From: mrtg [[email protected]] on behalf of Stephen D. Rasmussen [[email protected]] Sent: Wednesday, 28 January 2015 6:10 a.m. To: [email protected] Subject: [mrtg] MRTG not reporting accurate usage info for Cisco interfaces 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? Thanks in advance, [logo] Stephen Rasmussen System Network Administrator Telecommunications and Networking Stephen F. Austin State University P.O. Box 6095, SFA Station Nacogdoches, Texas 75962-6095 936-468-1246 [email protected]<mailto:[email protected]> | www.sfasu.edu<http://www.sfasu.edu/> “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.”
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