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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'>There are two problems here.<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'>First, you are running data collection
every 10 minutes. Unless you initially set the Interval to be 10, then
this will mean you have 50% of your data unknown, since you are (by default) supposed
to poll every 5 minutes. As your have a default XFF of 0.5 this can
result in all your data becoming ‘unknown’.<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'>Secondly, your data polling may be failing
– but its hard to say as I don’t know what you’re monitoring.
Possibly one of your monitored devices is down, or unreachable, or the
community string is wrong? Check your error logs. If you are
failing to poll, or the poll is taking >5min, then you will get unknowns
stored. The Routers2 frontend will show this as a grey block to indicate ‘data
unknown’ or ‘device unpollable’, but native MRTG (and 14all)
will default to the ‘unknasprev’ option (see below)<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'>Now, if you have the ‘unknasprev’
option set in Routers2, or you are using native MRTG (which does unknasprev by
default), then ‘unknown’ data will be displayed as the last known
good value. In your case, you may have mostly unknowns, so you’d
get a single, flat, solid green area. This appears to be what’s
happening. If the time on the x-axis is changing, then you know your
graph is being re-created, but the polling is failing and the unknasprev option
is just logging the last known good value.<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'>Check your polling. Probably, the
SNMP community has changed, or the network is not working the same, or there is
another problem. Run the MRTG poll from the command line to see if there
are any obvious error messages. Make sure your polling is really
running. Schedule it every 5 mins instead of every 10 mins so the XFF
(see the RRDtool documentation) doesn’t log everything as zero.<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'>Good luck…<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'>
mrtg-bounces@lists.oetiker.ch [mailto:mrtg-bounces@lists.oetiker.ch] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Hughes, Andy<br>
</span></font><font face=Arial><span style='font-family:Arial'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I installed mrtg two weeks ago to monitor traffic to/from an
individual router. All seemed to be well; I watched the graphs move as the week
went on etc. For some reason, the graph no longer moves at all (i.e. no
peaks and valleys)--the entire thing is just solid green. </span></font><font
face=Arial><span style='font-family:Arial'><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font><font face=Arial><span style='font-family:
Arial'><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I run mrtg every 10 minutes by a scheduled task that calls a
batch file in the \bin directory (Server 2003) that has a single line: perl
mrtg mrtg.cfg I notice that when I was on the server initially when mrtg
was running properly, the command window would briefly flash when the batch
file ran. Now it stays open much, much longer before disappearing?</span></font><font
face=Arial><span style='font-family:Arial'><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font><font color=navy face=Arial><span
style='font-family:Arial;color:navy'><o:p></o:p></span></font></p>
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