[mrtg] MIB question >continued<

Jeroen Heijungs Jeroen.Heijungs at Het-Muziektheater.nl
Mon May 21 11:17:30 MEST 2001

Hello list,

thanks for the answers, that was precisely what I wanted to know, and
indeed it turns out that both graphs are identical for 
1:public at and
. at

But that brings me right to the next issue, what is the difference between
the Interface OID's and the Etherstat OID's, they give different numbers,
but the doc as far as I have seen is not very clear about the differences
(description from Getif program):
OID . measures "The total number of octets received
on the interface, including framing characters."
OID . measures "The total number of octets
transmitted out of the interface, including framing characters."
OID . measures "The total number of octets of data
(including those in bad packets) received on the network (excluding framing
bits but including FCS octets)."

The difference between the IF-branche and the EtherStat-branche measures is
huge: mostly they have the same "break points", but sometimes the one is
going up while the other is going down, at other moments they are both
going in the same direction; sometimes the actual numbers are roughly in
the same region, somtimes the vary by a factor 4.

This is about a network which consists only of HUBS (3Com SuperStack II),
so there are no segments, and there is only 1 interface on the HUB that I
can measure. (and off course these EtherStats branche)

Can somebody try to explain to me what the differences in measures are,
what I am actually measuring/graphing?
Or point me to the right documentation?

Jeroen Heijungs
Het Muziektheater
Amsterdam, The Netherlands

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