[nsp] another counter funny

[Gert Doering]

Hi,

On Wed, Apr 28, 2004 at 01:13:59PM +0200, Ray Davis wrote:
> > another counter funny... what do you think of this:
[..]
> >      3675647146 packets output, 241884934 bytes, 172 underruns
> >      172 output errors, 172 collisions, 2 interface resets
> >      0 babbles, 0 late collision, 0 deferred
> >
> > ... "172 collisions" on an interface that is manually configured to 
> > "full-duplex".  Cool, eh?
> 
> Also - how do you output 3675647146 packets but less bytes?
> The output packets would have to average 0.066 bytes in size.
> Or is this a counter rollover to zero thing.

That's most certainly a counter rollover thing - the "show int" counters
are 32 bit only.  The SNMP counters have 64bit available, and they
show "9770022342326 bytes" output via that interface...

Now this would give an average packet size of 2658 bytes, which suggests
that the packet counter has also 32-bit wrapped at least once... :-)

gert

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Gert Doering - Munich, Germany                             gert at greenie.muc.de
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