Re: [8023-10GEPON] [FEC] Mandatory or Optional (was [FEC Superating] - kickoff preso)
Ignacio-
You are correct. I was wrong.
Percentage increase is linear not logarithmic.
Geoff
At 04:29 AM 2/11/2007 , Inacio, Pedro wrote:
>Dear Mr. Glen Kramer and Geoff Thompson,
>
>Maybe the sentences:
>
>"10GEPON has 1000% the bandwidth of 1GEPON."
>and
>"The bandwidth increase, when one goes from 1GEPON to 10GEPON, is 900%" -
>because this is the answer to the question "How much did the bandwidth
>increase?".
>
>Mr. Geoff, please notice that 100 % increase to 20 Mb/s is 40 Mb/s but,
>relatively to 10 Mb/s, it corresponds to a 300 % increase.
>
>Best Regards,
>Pedro Inácio
>
>________________________________
>
>De: Glen Kramer [mailto:glen.kramer@TEKNOVUS.COM]
>Enviada: sex 09-02-2007 21:57
>Para: STDS-802-3-10GEPON@listserv.ieee.org
>Assunto: Re: [8023-10GEPON] [FEC] Mandatory or Optional (was [FEC
>Superating] - kickoff preso)
>
>
>
>Geoff,
>
>When could we expect "Surely, You are Joking, Mr. Thompson" to be
>published? :)
>
>Meanwhile, please take a look here:
>http://www.mathsisfun.com/percentage-calculator.html
>
>
>or here:
>http://www.wtamu.edu/academic/anns/mps/math/mathlab/beg_algebra/beg_alg_
>tut16_percent.htm
>
>pay close attention to example 5.
>
>
>Cheers,
>Glen
>
>________________________________________
>From: Geoff Thompson [mailto:gthompso@NORTEL.COM]
>Sent: Friday, February 09, 2007 12:29 PM
>To: STDS-802-3-10GEPON@listserv.ieee.org
>Subject: Re: [8023-10GEPON] [FEC] Mandatory or Optional (was [FEC
>Superating] - kickoff preso)
>
>Glen-
>
>At 04:20 PM 2/8/2007 , Glen Kramer wrote:
>
>10GEPON leads to 1000% bandwidth increase compared to 1G EPON.
>
>
>I don't think so.
>A 100% increase is defined as doubling something.
>
>E.g. If you increase the price of something (the context in which
>percentage increase is usually used) by 10% it goes from $1.00 to $1.10.
>If you increase the price of something 100% it goes from $1.00 to $2.00
>
>Ergo, a 100% increase to 10 Mb/s would be 20 Mb/s
>and thus, a 200% increase to 10 Mb/s would be 40 Mb/s
>and thus, a 300% increase to 10 Mb/s would be 80 Mb/s
>and thus, a 400% increase to 10 Mb/s would be 160 Mb/s
>and thus, a 500% increase to 10 Mb/s would be 320 Mb/s
>and thus, a 600% increase to 10 Mb/s would be 640 Mb/s
>and thus, a 700% increase to 10 Mb/s would be 1.280 Gb/s
>and thus, a 800% increase to 10 Mb/s would be 2.560 Gb/s
>and thus, a 900% increase to 10 Mb/s would be 5.120 Gb/s
>and thus, a 1000% increase to 10 Mb/s would be 10.240 Gb/s
>
>10GEPON leads to (approx) 10x bandwidth improvement compared to 1G EPON
>
>Geoff