Date: Wed, 11 Jan 2012 20:56:57 +0200 From: =?ISO-8859-1?Q?Ott_K=F6stner?= <ottk@zzz.ee> To: freebsd-questions@freebsd.org Subject: Re: Network throughput Message-ID: <4F0DDB79.2010907@zzz.ee> In-Reply-To: <4F0DA344.9030504@infracaninophile.co.uk> References: <20120111112400.Horde.g4QFfgcXel9PDXFQSwJwfrA@webmail.geofront.co.uk> <4F0D7B87.9060808@zzz.ee> <4F0DA344.9030504@infracaninophile.co.uk>
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On 11.01.2012 16:57, Matthew Seaman wrote: > Yes -- mrtg is nice, but it relies on the snmp interface counters, and > in this case with Gb traffic levels a 32bit counter will wrap in a few > minutes. mrtg samples the interface counter every 5 minutes IIRC, so > would probably be confused by that wrap-around happening at around the > same frequency. Unless you switch to using 64bit interface counters, > but I don't know if mrtg can cope with integer types that wide... > Cheers, Matthew Yes, I have seen that wrapping with few hundred megabit port traffic. New snmp port has 64 bit counter option. Personally, I have already built a new snmp with 64 bit counter option, but not yet tested if it works. Maybe somebody here can comment? regards, Ot
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