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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I can’t explain much as I don’t
know enough about your system. MRTG will graph the figures it is given, are
you sure you are giving it constant values? You also don’t say how you
are obtaining the values for ‘tcp active connections’, so this may
be relevant. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The graph you show says that for certain
times MRTG has been given values less than 8 by the method you are using to
poll. Possibly this is returning low or zero values, or failing to poll
correctly? You are probably running MRTG with ‘unknaszero’ set in
native mode? That would cause a sag in the line if the polling failed.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Remember that perfmon polls at a far
higher frequency (20sec) to MRTG (5min) so you’ll see different usage
patterns.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>My guess is that your polling is failing
and so logging zeros for occasional samples. Check that there are no failed
poll logs coming from your MRTG process.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Steve<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
nangineni praneeth [mailto:nv_2030@yahoo.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, 16 December 2008
15:04<br>
<b><span style='font-weight:bold'>To:</span></b> 'mrtg@lists.oetiker.ch'; Steve
Shipway<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mrtg] mrtg----In
bound traffic.....</span></font><span lang=EN-US><o:p></o:p></span></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>but my other
interfaces where the traffic on serial interface is moving out the blue graph
is showing a sawtooth graph....its only with the "in" traffic i am
getting this sort of result....<br>
<br>
another thing i noticed is when i was monitoring activetcp connections..I
used perfmon and monitored tcp connections and it showed a constant line of 8
active connections.....mrtg also did show 8 but of the similar behaviour
which i explained earlier...To just show you that i am attaching the png
image........can you please explain a bit further on this behaviour<br>
<br>
<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
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