Date: Sun, 15 Jun 2008 19:42:00 +0200 From: Hartmut Brandt <hartmut.brandt@dlr.de> To: Olivier Mueller <om-lists-bsd@omx.ch> Cc: freebsd-net@FreeBSD.org, freebsd-questions@freebsd.org Subject: Re: mrtg peak on reboot / snmp-issue? Message-ID: <48555468.9090203@dlr.de> In-Reply-To: <1213546323.29846.24.camel@bigapple.omnis.ch> References: <1213546323.29846.24.camel@bigapple.omnis.ch>
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Olivier Mueller wrote: > Hello, > > Small but curious thing on my freebsd-based systems: when a > server is rebooted, it generates a peak (or "spike"?) on the > network mrtg for all interfaces (here just before 1 am): > http://8304.ch/om/stuff/mrtg_localhost_1-day.png This could happen if either the daemon fails to correctly provide ifCounterDiscontinuityTime or mrtg fails to correctly interpret sysUpTime and/or ifCounterDiscontinuityTime. > It happens with both net-snmp and ucd-snmp, with a quite standard > mrtg installation (generated by cfgmaker). > > Do you have the same "issue" on your own servers? All I can add, is > that there is not such a high traffic after a reboot, and that it > doesn't happen on similar linux-based systems. harti
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