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<div dir="ltr"><font face="Tahoma" color="#000000" size="2">If you don't have a lot of interfaces to change, just manually change your config file. It'll take you all of 5 minutes, and you won't have to rerun cfgmaker.</font></div>
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<font face="Tahoma" size="2"><b>From:</b> Matthew Petach [mpetach@yahoo.com]<br>
<b>Sent:</b> Monday, December 01, 2008 9:33 PM<br>
<b>To:</b> nv_2030@yahoo.com; mrtg@lists.oetiker.ch; Sean Cheesman<br>
<b>Subject:</b> Re: [mrtg] MRTG bandwidth error<br>
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If your link is a 64kb link, and you change the "bandwidth" statement in your router config,<br>
the next time you run cfgmaker against the device, it will generate correct MRTG configs<br>
with the right MaxBytes statement so that your percentages will be correct. But you *do*<br>
have to re-run cfgmaker for it to pick up the change, it won't magically know that you've<br>
changed the bandwidth statement on the router.<br>
<br>
Matt<br>
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<b><span style="FONT-WEIGHT: bold">From:</span></b> nangineni praneeth <nv_2030@yahoo.com><br>
<b><span style="FONT-WEIGHT: bold">To:</span></b> "mrtg@lists.oetiker.ch" <mrtg@lists.oetiker.ch>; Sean Cheesman <scheesman@caeveo.com>; Matthew Petach <mpetach@yahoo.com><br>
<b><span style="FONT-WEIGHT: bold">Sent:</span></b> Saturday, November 29, 2008 10:01:13 AM<br>
<b><span style="FONT-WEIGHT: bold">Subject:</span></b> Re: [mrtg] MRTG bandwidth error<br>
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<td style="FONT-FAMILY: inherit" valign="top">Thank you..Yes i am using a cisco router......so it means probably that in the ifspeed OID on this cisco 2811 router the speed was 193kbps.......so how do i get the percentage then<br>
<br>
I have seen in other posts that diving the OID helps for eg:<br>
<br>
OID / 64kbps(After i change the bandwidth)...will the graph change too if give this in the config file...or should i use the option[xx].dorelpercent<br>
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Regards<br>
Venkat<br>
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--- On <b>Fri, 11/28/08, Matthew Petach <i><mpetach@yahoo.com></i></b> wrote:<br>
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From: Matthew Petach <mpetach@yahoo.com><br>
Subject: Re: [mrtg] MRTG bandwidth error<br>
To: nv_2030@yahoo.com, "mrtg@lists.oetiker.ch" <mrtg@lists.oetiker.ch>, "Sean Cheesman" <scheesman@caeveo.com><br>
Date: Friday, November 28, 2008, 11:14 PM<br>
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MRTG doesn't look at the clock rate, it looks at the ifSpeed SNMP OID;<br>
to change that, on a Cisco, use the "bandwidth" statement in the interface<br>
configuration section. If it's not a Cisco, you'll need to consult your<br>
vendor documentation to figure out how to change the value reported<br>
by the ifSpeed OID.<br>
<br>
Matt<br>
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<b><span style="FONT-WEIGHT: bold">From:</span></b> nangineni praneeth <nv_2030@yahoo.com><br>
<b><span style="FONT-WEIGHT: bold">To:</span></b> "mrtg@lists.oetiker.ch" <mrtg@lists.oetiker.ch>; Sean Cheesman <scheesman@caeveo.com><br>
<b><span style="FONT-WEIGHT: bold">Sent:</span></b> Friday, November 28, 2008 7:58:33 AM<br>
<b><span style="FONT-WEIGHT: bold">Subject:</span></b> Re: [mrtg] MRTG bandwidth error<br>
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<td style="FONT-FAMILY: inherit" valign="top">Thank you very much...But why is it taking a T1 link bandwidth when i specified the clockrate to be 64kbps??......I know that i can edit the cfg file later and set the MAX bytes to to 64kbps but i thought MRTG
would calculate the interface B.W automatically when i polled the router...<br>
<br>
<br>
--- On <b>Fri, 11/28/08, Sean Cheesman <i><scheesman@caeveo.com></i></b> wrote:<br>
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From: Sean Cheesman <scheesman@caeveo.com><br>
Subject: RE: [mrtg] MRTG bandwidth error<br>
To: "nv_2030@yahoo.com" <nv_2030@yahoo.com>, "mrtg@lists.oetiker.ch" <mrtg@lists.oetiker.ch><br>
Date: Friday, November 28, 2008, 9:21 PM<br>
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<div dir="ltr"><font face="Tahoma" color="#000000" size="2"><font face="Tahoma" color="#000000" size="2">193kbytes</font> = 1536kbps (x8)</font></div>
<div dir="ltr"><font face="tahoma" size="2"><font face="tahoma" size="2">70.2kbps</font> / 1536kbps = .0045</font></div>
<div dir="ltr"><font face="tahoma" size="2">.0045 = 4.5%</font></div>
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<font face="Tahoma" size="2"><b>From:</b> mrtg-bounces@lists.oetiker.ch [mrtg-bounces@lists.oetiker.ch] On Behalf Of nangineni praneeth [nv_2030@yahoo.com]<br>
<b>Sent:</b> Friday, November 28, 2008 10:28 AM<br>
<b>To:</b> mrtg@lists.oetiker.ch<br>
<b>Subject:</b> [mrtg] MRTG bandwidth error<br>
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Hello everyone i have found MRTG reporting a small error on my bandwidth.......I configured a small campus enterprise network with collapsed core design(in a lab environment).........I used a frame relay connection to connect to my branch office..I have specified
the clock rate to be 64kbps.....But when i was collecting the interface traffic from my enterprise edge MRTG was reporting the max traffic below the graph to be 70.2 kbps....How is it possible?Because the serial link was supposed to be at 64kbps(the clock
rate which i gave)......This was the outbound traffic MRTG reported.........<br>
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<td>70.2 kb/s (4.5%) </td>
<td>37.8 kb/s (2.4%) </td>
<td>63.0 kb/s (4.1%) </td>
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The max speed MRTG gave of the interface was 193.0kbytes.Also kindly please explain what the percentage represents...I have been pulling my hair and doing all sorts of calculation to find out what the percentages exactly means and what is it exactly representing<br>
<br>
Regards<br>
Venkat<br>
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