John,
I
agree, I think this is the only system on our network that has half-Duplex
gig..(ifconfig shows simplex) (and it's our TSM server... go
figure)
I am
using the raw data pulled from snmpget, thus the time factor was
included.
Now,
question for you.. If you have a half-D link, and you still calculate the
utilization separately (in and out) How do you then take those figures and
say "this link is xx% utilized"... or don't you? I would assume that
perhaps you would then add the 2 - %'s together and basically come up with the
same deal.
thanks
b
I'm surprised if your gigabit is actually half duplex. Fibre
versions tend to be full duplex, one
fibre in, one fibre out. Copper versions can probably negotiate full
duplex.
I normally measure
BandwidthUtil-In and BandwidthUtil-Out separately to avoid whether it's half or full duplex.
Now bandwidth percentage = 8 * 100 *
Octets / Speed Are you looking at the
raw data, or trying to do this in mibExpr.conf?
I think that you don't need to divide ifInOctets by the
60 sec interval, if using
mibExpr.conf. The type of the field means that the sample time
division is done for you. This means that the
formula does not have to be adjusted if one sample was missed.
So I think you should be dividing by 1,000,000,000 not by
60,000,000,000
So my mibExpr.conf
looks like
BandwidthUtilIn
\ "8*100* ifInOctets / ifSpeed"
\
.1.3.6.1.2.1.2.2.1.10. \ .1.3.6.1.2.1.2.2.1.5. / \
800 *
John Gatrell, B.A. Physics, CCNA RMSC -
IBM UK's Remote Managed Services Centre Tel: 01932-81-4732 Internal
814732
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