[rrd-users] Confusion and seeking help with RRDtool
derek at omegabyte.com
Sun Oct 20 23:23:18 MEST 2002
Alright, so I'm running mrtg-2.9 with rrdtool 1.0.40 on a HP ProCurve
Switch. I do a snmpget on the router:
snmpget ip public interfaces.ifTable.ifEntry.ifOutOctet.1
and that returns:
interfaces.ifTable.ifEntry.ifOutOctets.1 = Counter: 2103368116
What does MRTG/RRDTool do to this number in order to enter the
information into the database? Does it just add it as is? Does it take
the difference between this number and the number prior?
Also, when I do a rrdtool fetch on the database I get a string of
numbers in scientific notation. What is this number in? When I do a
graph, I notice the values are actually 10 times less than a reasonable
amount. Am I doing something wrong here?
In order to correct the graphs I had to do a CDEF:actual=in,10,* and
that does work. But some of the data I'm trying to calculate doesn't
come out so I need to know what does MRTG store the data as: bits,
Any information will be appreciated greatly.
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