<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Thank you very much....That certains does explain that it requires the max bytes option when its polling counters like cpu load etc to calculate the percentages. In mrtg-ping-probe its mentioned like this <br><br> "we set the max bytes to a value in ms that we consider normal for an unused link so that the percent values show how much you are off when the line is used heavily"<br><br> <br>..just want a good answer so that my prof cannot catch me on that:p........<br><br><br><pre>"More than likely, inbound latency and outbound latency, but you would<br>need to check the mrtg-ping-probe file to make certain".</pre>yes i did check the mrtg-ping-probe file.......it says any script should return four lines of output <br> <br> 1 )<span style="font-style: italic; color: rgb(0, 0,
0);"> </span><font style="font-style: italic; color: rgb(0, 0, 0);" color="#cccccc">current state of the first variable, normally 'incoming bytes count'</font><br> <br> 2) <span style="font-style: italic;"> </span><font style="color: rgb(0, 0, 0); font-style: italic;" color="#cccccc">current state of the second variable, normally 'outgoing bytes count'</font><br> <br>But since its rtt i am unable to link this bytes count to ms.....<br><br>Regards<br>Venkat<br><br>--- On <b>Mon, 12/8/08, Daniel J McDonald <i><dan.mcdonald@austinenergy.com></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;">From: Daniel J McDonald <dan.mcdonald@austinenergy.com><br>Subject: Re: [mrtg] mrtg-questions<br>To:
mrtg@lists.oetiker.ch<br>Date: Monday, December 8, 2008, 11:40 PM<br><br><pre>On Mon, 2008-12-08 at 09:51 -0800, nangineni praneeth wrote:<br><br>> Hello everyone<br>> <br>> I am working on a project titled network<br>> monitoring and would like to add few details in my documentation...I<br>> searched for these question over the web but couldnt find anything....<br>> <br>> <br>> 1) Why are we specifying max bytes when we are using MRTG to monitor<br>> rtt, packetloss,cpuload etc?.I mean rtt or other variables like<br>> packetloss have nothing to do with max bytes....<br><br>It's called MaxBytes because mrtg was originally designed to monitor<br>traffic, and non-backward compatible changes are hugely frowned upon.<br><br><br>> I know that MRTG requires that options but couldnt figure out why??<br><br>For counters, it needs to know the max so it can detect counter<br>roll-overs. For
non-counters, it needs to know the max so it can<br>determine percentage correctly.<br><br>> Would be grateful if someone could answer how max bytes option is<br>> related to these variables<br><br>It's the maximum value expected to be present.<br><br>> 2)options [:]:integer.......what does this option....The mrtg website<br>> says "Print summary lines below graph as integers without<br>> commas"....was little confused by this...can anyone clearly tell me<br>> what this option does...<br><br>I think that removes the k/m/g suffixes, but I haven't played with<br>rateup in a while, so I don't recall.<br><br><br>> 3) I can monitor rtt and packet loss with MRTG by making use of<br>> mrtg-ping-probe....<br>> I did the following from cmd<br>> <br>> c:/mrtg/bin/>perl mrtg -ping -probe 192.168.5.1 and it returned me two<br>> values <br>> 47<br>> 48 <br><br>More than likely, inbound latency and outbound latency,
but you would<br>need to check the mrtg-ping-probe file to make certain.<br><br>> what does these two values represent......are these two values<br>> representing the incoming bytes counT and external bytes count...again<br>> why am i speaking in terms of bytes count when monitoring ping and<br>> rtt...<br>> <br>> I know these are lot of questions....But since i am working on this<br>> project i must be able to answer these questions.........tried lots on<br>> the web but couldnt find answers for these<br>> Would be really thankful if someone helps me out<br>> <br>> Regards<br>> Venkat.....<br><br><br>-- <br>Dan McDonald, CCIE #2495, CISSP# 78281, CNX<br>www.austinenergy.com<br><br>_______________________________________________<br>mrtg mailing list<br>mrtg@lists.oetiker.ch<br>https://lists.oetiker.ch/cgi-bin/listinfo/mrtg<br></pre></blockquote></td></tr></table><br>