Tatsuo> I think ifload, which comes with scotty, and tkined uses the
Tatsuo> following formula to compute an interface load:
[ ... formula deleted ... ]
Tatsuo> Sometimes, ifload and tkined report an interface load greater than
Tatsuo> 100%, e.g. 106%. How could it be?
Good question. I think that the current ifload implementation should
really get it right. However, there is always a chance for errors. The
only way to track this down is to add a couple of "puts" to the
monitoring script to save the values returned by the SNMP responses
and to redo the calculation by hand. This will show if the calculation
performed by the scotty script is broken or if the agent returns
inconsistent values. (Note, early versions of snmp_monitor.tcl are
broken since they used the local time interval instead of the time
interval measured by the agent. Even a small unusal network delay
could lead to incorrect results. But this has been fixed a couple of
month ago.)
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)