[rrd-users] 1 Minute Interval

Tom Daly tom at dyndns.org
Tue Jun 17 06:49:02 MEST 2003

I am trying to monitor a cisco catalyst 2950 with a 1 minute interval. I
need this data for a range of 4 hours, so I can see accurate samples at my

Here's a snip from my MRTG config.

WorkDir: /home/htdocs/graphs/

Options[_]: growright, bits

LogFormat: rrdtool
PathAdd: /usr/local/rrdtool-1.0.42/bin
LibAdd: /usr/local/rrdtool-1.0.42/lib/perl/

Interval: 1

Target[orh.dyndns.org_24]: 24:comm at orh.dyndns.org:
SetEnv[orh.dyndns.org_24]: MRTG_INT_IP=""
MaxBytes[orh.dyndns.org_24]: 12500000
Title[orh.dyndns.org_24]: Traffic Analysis for 24 -- switch.orh.dyndns.org
PageTop[orh.dyndns.org_24]: <H1>Traffic Analysis for 24 -- switch.orh.dyndns.org</H1>
RRDRowCount[orh.dyndns.org_24]: 240
   <TR><TD>System:</TD>     <TD>orh.dyndns.org in </TD></TR>
   <TR><TD>Maintainer:</TD> <TD></TD></TR>
   <TR><TD>Description:</TD><TD>FastEthernet0/24 Uplink to fluorine </TD></TR>
   <TR><TD>ifType:</TD>     <TD>ethernetCsmacd (6)</TD></TR>
   <TR><TD>ifName:</TD>     <TD>Fa0/24</TD></TR>
   <TR><TD>Max Speed:</TD>  <TD>12.5 MBytes/s</TD></TR>

So I have set the RRDRowCount to 240 since I want date for four hours, 1
minute interval. However, my entire data file contains entries of NaN. Can
anyone suggest how I can get this to work?


Tom Daly
tom at dyndns.org
Chief Infrastructure Officer
Dynamic DNS Network Services

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