On Tue, 13 Nov 2001, Deepak Jain wrote:
>
> If I remember correctly, Cisco uses some kind of decaying average algorithm
> to report bit rate/second on interfaces.
5 minute exponentially weighted average:
new avg = (avg - interval) e^(-t/c) + interval
where t = 5 sec c = 5 min
e^(-t/c) = e^(-5/300) = .983
avg = previous new avg
interval = value of the current sample (such as: load, reliability, or
packets per sec)
Working Equation: .98(avg - interval) + interval
scott
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