[rrd-users] Re: Oddly excessive bandwidth reports coming from a T1, read on for details

Matus Telgarsky mit at juilliard.edu
Tue Apr 23 11:27:18 MEST 2002

On Tue, 23 Apr 2002 10:21:10 +0200 (CEST)
Alex van den Bogaerdt <alex at slot.hollandcasino.nl> wrote:

> 1) Why is it a problem that you see 1.54 MBps on _each_ T1, what is
>    the problem with that?

the two images are

the problem is I am way _over_ 1.54 quite often.  and, I have no idea
why. as my original post states, lots of other data backs this impossible

> 2) Why do I still get the feeling that you are adding ifInOctets and
>    ifOutOctets; in other words you seem to think the aggregate should
>    be 1.54 Mbps

I use rrdtool's STACK type in the graph for ifInOctets, placing it on top
of ifOutOctets, so the upper boundary of ifInOctets is indeed a measure of 
aggregate bandwidth, and this should never exceed 1.54Mbps, which it does 
quote often.

So if you could explain to me how it is feasible that I am breaking what
I thought was a physical bandwidth limitation, please tell me.


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