On 11/01/2012 12:07, Ott Köstner wrote: > On 11.01.2012 13:24, Mike Woods wrote: >> > >> > I'm trying to gather network throughput information on a box of ours >> > and I'm having a little problem, the throughput is to be measured on a >> > per-minute basis and i've been trying to use netstat for this (count >> > now - count before/timeperiod) however netstats byte counter resets >> > far too quickly to be usefull (this is a busy gb link), i've had a >> > look at vnstat but this only seems to operation on an hour or higher >> > and I need to get down to the minute, does anyone have any suggestions >> > of a tool better suited to this ?
> I have been using net-snmp daemon in combination with mrtg. Displays
> nice traffic graphs.
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
--
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
JID: matt...@infracaninophile.co.uk Kent, CT11 9PW
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