I've gotten myself into an argument with a provider about the definition of
'industry-standard 95th percentile method.'
To me, this means the following:
a) take the number of bytes xfered over a 5 minute period, and determine
rate for both the inbound and outbound. Store this in your favorite
b) at billing time, presumably on the first of the month or some other
monthly increment, take all the samples, sort them from greatest to least,
hacking off the top 5% of samples. Actually, this is done twice, once for
inbound, once for outbound. Then, take the higher of those two, and multiply
it by your favorite $ multiple (ie, $500 per megabit per second, or $1 per
kilobit per second, etc).
I think that most people agree with the above; the issue we are running into
is one rogue provider who is billing this at in + out, not the greater of in
How is everyone else doing it? Specifically, larger folks (UU, Sprint, CW,
Exodus/FGC, GX, Qwest, L3)