[mrtg] Re: Cumulative graphing issue using "gauge" option - data wrap s after hitting 2^32 Bytes ...

[Luis]

Try using snmp version 2. You'll ask for 64 bit mibs instead 32 bits. 

http://people.ee.ethz.ch/~oetiker/webtools/mrtg/reference.html

You can see how to do it in "Per Target Configuration" section.


-----Mensaje original-----
De: mrtg-bounce at list.ee.ethz.ch [mailto:mrtg-bounce at list.ee.ethz.ch] En
nombre de dhazell at aap.com.au
Enviado el: martes, 07 de octubre de 2003 6:37
Para: mrtg at list.ee.ethz.ch
Asunto: [mrtg] Cumulative graphing issue using "gauge" option - data
wrap s after hitting 2^32 Bytes ...


Dear all
I am trying to graph the cumulative usage im megabytes of the ports from
our routers to our isps. So far my graphs are quite good except that the
OIDs in question that I am monitoring seem to wrap (go back to zero)
after they get to around 4000000000 bytes (2 ^ 32 bytes).

I was thinking that I could write a script to tweak the data that is
stored in the .log file to somehow recognise that the counter has
wrapped and simply process the .log data so that the data continues
incrementing instead of going back to zero. I don't think this would be
too hard to do with perl.

Does any one know the best way I should integrate this script with the
mrtg apllication software so that 
(i) mrtg gathers the raw data from the router and updates the .log file
(ii) my script modifies the .log data so that the counter values keep
incrementing instead of wrapping back to zero and then (iii) rateup uses
the processed .log data to make the graph.

Appreciate anyones's response about this

thanks
Derek
 
#######################################################
### Interface 1x >> Descr: 'Ethernet0/0' | Name: 'Et0/0' | Ip:
'ipaddress' |
Eth: 'macaddress' ###
YLegend[routername_Et0_0x]: MegaBytes
ShortLegend[routername_Et0_0x]: Bytes
Factor[routername_Et0_0x]: 1048576
WithPeak[routername_Et0_0x]: ymw
Options[routername_Et0_0x]: growright, gauge, nopercent
Target[routername_Et0_0x]:
.1.3.6.1.2.1.2.2.1.10.1&.1.3.6.1.2.1.2.2.1.16.1:public at routername: /
1048576
Directory[routername_Et0_0x]: routername
SetEnv[routername_Et0_0x]: MRTG_INT_IP="ipaddress" MRTG_INT_DESCR=""
MaxBytes[routername_Et0_0x]: 10000000000000000
Title[routername_Et0_0x]: Ethernet0/0 -- routername - cumulative
Legend1[routername_Et0_0x]: Incoming Traffic in MegaBytes
Legend2[routername_Et0_0x]: Outgoing Traffic in MegaBytes
Legend3[routername_Et0_0x]: 
Legend4[routername_Et0_0x]: 
LegendI[routername_Et0_0x]:  In:
LegendO[routername_Et0_0x]:  Out:
PageTop[routername_Et0_0x]: <H1>Ethernet0/0 -- routername -
cumulative</H1>  <TABLE>
	<TR><TD>System:</TD><TD>routername</TD></TR>
   <TR><TD>Description:</TD><TD>Ethernet0/0 Pub/Ext Int to Internet -
cumulative </TD></TR>
   <TR><TD>ifType:</TD>     <TD>ethernetCsmacd (6)</TD></TR>
   <TR><TD>ifName:</TD>     <TD></TD></TR>
   <TR><TD>Ip:</TD>         <TD>ipaddress</TD></TR>
 </TABLE>



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