[mrtg] Re: unable to poll

[Koelstra, J. (Jan)]

To graph values above 114Mbits/s you should use the ifHC counters. 

>From the reference.html shipped with mrtg:
[...snip...]
If you have a fast router you might want to try to poll the ifHC* counters. This feature gets activated by switching to SNMPv2c. Unfortunately not all devices support SNMPv2c yet. If it works, this will prevent your counters from wraping within the 5 minute polling interval, since we now use 64 bit instead of the normal 32 bit. 
Example:

 Target[ezwf]: 2:public at router1:::::2
[...snip...]

Using plain MRTG you can not reduce the time of the counters to less than 5 minutes. If you want a graph with intervals less than 5 minutes you need mrtg with rrd 

Hth,

Jan.


-----Original Message-----
From: Vishal B Patel [mailto:vishalp at fasttelco.net] 
Sent: Thursday, June 17, 2004 10:00 AM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] unable to poll 


 dear all ,

 We  have  shifted  one of our links from ethernet to  fiber on a cisco 7500 router.

The  traffic  goes above 120 Mpbs now ..and  my  mrtg  is not able to read that..., i get  blank spaces in the graph  or sometimes  it only  10 % of the real utilization.

Does MTRG has  problem reading such  high traffic , i read  on the  site below :

http://faq.mrtg.org/FAQ004.html

can anyone  comment on this.

Please  also tell me  how  to reduce the time of the counters from 5 mins to 1 min.

Thanks a lot

Vishal 

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