Re: 147% Interface load

Juergen Schoenwaelder (schoenw@cs.utwente.nl)
Tue, 4 Mar 1997 13:35:09 +0100

Jochen Wiedmann <wiedmann@Neckar-Alb.DE> said:

Jochen> recently I tried the "ifload" example from the scotty distribution.
Jochen> Nice one! However, to my surprise the output shows rates like
Jochen> 120 % and even more quite frequently.

Jochen> According to "snmpwalk" the interface speed appears to be
Jochen> correct. Any explanations?

The calculation of the interface load is explained in the Simple
Times, 1(5), November/December, 1992:

http://www.simple-times.org/pub/simple-times/

You can find the implementation in tnm/library/monitor.tcl. The only
way to track the problem down is to make the calculation by hand and
to compare the results. Check whether the interface type is recognized
correctly because there are different formulas for full-duplex and
normal links.
Juergen

-- 
Juergen Schoenwaelder schoenw@cs.utwente.nl http://www.cs.utwente.nl/~schoenw
Computer Science Department, University of Twente,   (Fax: +31-53-489-3247)
P.O. Box 217, NL-7500 AE Enschede, The Netherlands.  (Tel. +31-53-489-3678)
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