[mrtg] MRTG draws wrong when the traffic arrive 100 ~110 Mbit...

Koelstra, J. (Jan) JKoelstra at MINSZW.NL
Thu Mar 29 11:24:47 CEST 2007


By default MRTG uses 32bit counters. When using a 5 minute poll interval this 32bit counters equal to about 114Mbits/s.
There are 2 ways to tackle this:
1. Poll more often. Polling each minute will lift the maximum to about 570Mbits/s
2. If your device supports the ifHC* counters you can use the 64bit counters. To use the 64bit counters you have to add ::::2 at the target line of your MRTG configuration. (see http://oss.oetiker.ch/mrtg/doc/mrtg-reference.en.html#item_snmpv2c for details)



	-----Original Message-----
	From: mrtg-bounces at lists.oetiker.ch [mailto:mrtg-bounces at lists.oetiker.ch] On Behalf Of Gökhan" hacibektasoglu
	Sent: Thursday, March 29, 2007 10:58 AM
	To: mrtg at lists.oetiker.ch
	Subject: [mrtg] MRTG draws wrong when the traffic arrive 100 ~110 Mbit...

	Dear All,
	I'am using MRTG for draw the telco line traffic. But I have a problem. When the traffic is high (up to 100Mbit), the graphic shown down...I try 3 different mrtg servers& mrtg versions for this problem but i can't :( I can get the true ifinoctets & ifoutoctets values when the problem is going on (I try on the same server). What can i control for resolve this problem? If you can help I will be very hapy...
	Thank you for your help...
	Awaiting reply,
	Gokhan Hacibektasoglu


	Gökhan Hacýbektaþoðlu


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