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<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=032021317-21082008>Steve, thanks very much for the response. I will
pursue what you have suggested.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=032021317-21082008></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=032021317-21082008>I did search for some error logs but found none. Where
are they hiding?</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=032021317-21082008></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=032021317-21082008>Is mrtg by default going to run every 5 minutes without
my intervention, or are you saying I should change the task to run every 5
minutes instead rather than the 10 I set up?</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=032021317-21082008></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT face=Arial color=#0000ff size=2><SPAN
class=032021317-21082008>Thanks again!</SPAN></FONT></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Steve Shipway
[mailto:s.shipway@auckland.ac.nz] <BR><B>Sent:</B> Monday, August 18, 2008 6:25
PM<BR><B>To:</B> Hughes, Andy; 'mrtg@lists.oetiker.ch'<BR><B>Subject:</B> RE:
Newbie question<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">There are two problems
here.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">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 face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">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 face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">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 face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">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 face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Good
luck…<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Steve<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
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<DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN lang=EN-US
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; 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></DIV>
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; 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></DIV>
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </SPAN></FONT><FONT
face=Arial><SPAN style="FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; 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></DIV>
<DIV>
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style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </SPAN></FONT><FONT face=Arial
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