nanog mailing list archives
What does 95th %tile mean?
From: Alex Rubenstein <alex () corp nac net>
Date: Thu, 19 Apr 2001 10:09:09 -0400
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 data-store. 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 or out. How is everyone else doing it? Specifically, larger folks (UU, Sprint, CW, Exodus/FGC, GX, Qwest, L3) Thanks!
Current thread:
- What does 95th %tile mean? Alex Rubenstein (Apr 19)
- Re: What does 95th %tile mean? Sean Morrison (Apr 19)
- Re: What does 95th %tile mean? Andy Dills (Apr 19)
- Re: What does 95th %tile mean? Andy Dills (Apr 19)
- Re: What does 95th %tile mean? Greg A. Woods (Apr 19)
- Re: What does 95th %tile mean? Sebastien Berube (Apr 19)
- RE: What does 95th %tile mean? Michelle T (Apr 19)
- Re: What does 95th %tile mean? Andy Dills (Apr 19)
- Re: What does 95th %tile mean? Greg A. Woods (Apr 19)
- Re: What does 95th %tile mean? Martin Hannigan (Apr 19)