Re: [8023-10GEPON] [FEC] Mandatory or Optional (was [FEC Superating] - kickoff preso)
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 anwear 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