[rrd-users] Help with spikes

[Jon Rust]

mrtg+rrd occassionally spikes on me. Currently I've got 2 spike 
incidents to deal with. Using rrdtool dump and vi, I've cleaned up 
the daily chart, and thought I did for the other timeframes, but 
they're still there. I've hunted through and can't find where to 
decrease the numbers to get rid of the spikes. For example, I've got 
a spike that shows 69Mbps peak, and one that shows 490Pbps (yes, 
peta). I can only find values like those in the cdp_prep areas:

                <cf> AVERAGE </cf>
                 <pdp_per_row> 288 </pdp_per_row> <!-- 86400 seconds -->

                 <cdp_prep>
                         <ds><value> 6.4969881851e+07 </value> 
<unknown_datapoints> 0 </unknown_datapoints></ds>
                         <ds><value> 6.1489147010e+16 </value> 
<unknown_datapoints> 0 </unknown_datapoints></ds>
                 </cdp_prep>


--------and--------

                <cf> MAX </cf>
                 <pdp_per_row> 288 </pdp_per_row> <!-- 86400 seconds -->

                 <cdp_prep>
                         <ds><value> 5.6456036791e+05 </value> 
<unknown_datapoints> 0 </unknown_datapoints></ds>
                         <ds><value> 6.1079219238e+16 </value> 
<unknown_datapoints> 0 </unknown_datapoints></ds>
                 </cdp_prep>

Do I need to change these values? I think so since it's the only 
place in the whole file that e+16 is mentioned, but I'm a bit lost. 
What are these values representative of (so I can approximate what 
they should be)?

Thanks,
jon

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