[c-nsp] [OT] Graphing more than 114Mbps with mrtg

Gabriel gabriel at dialupusa.net
Fri Oct 29 12:50:50 EDT 2004


You need to use 64 bit counters; and rather than looking for specific OIDs, 
just tell MRTG to look for them.  This is done by setting the target 

Standard target:
Target[standard]:   1:public at router

64 bit counter target:
Target[fob]:  1:public at router:::::2



Mark Taylor wrote:
> Without meaning to turn the list into an mrtg forum :)
> I don't seem to be able to graph interface transfer rates above 114Mbps 
> with mrtg. I think this is because the cisco counter 
> interfaces.ifTable.ifEntry.ifInOctets.x wraps back to the start within 
> the 5 minute collector period at rates above this. Does anybody know how 
> to solve this?
> Temporarily I'm collecting the data more often before the counters wrap. 
> Is there a different OID that I need to use? Or do I need to configure 
> something within the snmp-server on the cisco to use a bigger counter size?
> I have the same issue on Cisco IOS routers/switches and also CatOS 
> switches.
> Any suggestions greatly appreciated,
> Thanks,
> Mark.
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Gabriel Cain                                       www.dialupusa.net	
Senior Systems Administrator                   gabriel at dialupusa.net
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		Technology for the sake of business.

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