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Re: [10GBT] Question about previous analysis of codes and undetected errors.



Pat,

The 1000BASE-T signaling was essentially derived from 100BASE-T2. In
802.3ab, a group of us got together and determined that the undetected frame
error rate for 1000BASE-T was orders of magnitude lower than that for
100BASE-T2, and thus met the requirement for Ethernet.

The undetected frame error rate analysis for 100BASE-T2 was presented to
802.3y by John Creigh, then of IBM.

Regards,
Sailesh.
srao@phyten.com

>From: Pat Thaler <pat_thaler@AGILENT.COM>
>Reply-To: pat_thaler@AGILENT.COM
>To: STDS-802-3-10GBT@listserv.ieee.org
>Subject: Re: [10GBT] Question about previous analysis of codes and
>undetected errors.
>Date: Mon, 11 Oct 2004 10:36:18 -0600
>
>I believe that there was, but I didn't follow 1000BASE-T as closely so it
>would take time for me to find the relevant presentations. For 802.3ae, I
>recalled who the presenter and I knew approximately which meeting archives
>to look at which speeded the search a lot. It would be helpful if someone
>else can provide the references to the 1000BASE-T error analysis.
>
>Regards,
>Pat
>
>-----Original Message-----
>From: stds-802-3-10gbt@IEEE.ORG [mailto:stds-802-3-10gbt@IEEE.ORG]On Behalf
>Of Jose Tellado
>Sent: Thursday, 07 October, 2004 3:40 PM
>To: STDS-802-3-10GBT@listserv.ieee.org
>Subject: Re: [10GBT] Question about previous analysis of codes and
>undetected errors.
>
>
>Thanks Pat,
>
>This material is very relevant for understanding undetected error rate for
>802.3ae and will aid in our 802.3an analysis.
>Is there a similar analysis for the 1000Base-T project?
>
>Regards,
>Jose
>
>   _____
>
>From: stds-802-3-10gbt@IEEE.ORG [mailto:stds-802-3-10gbt@IEEE.ORG] On
>Behalf Of Pat Thaler
>Sent: Thursday, September 30, 2004 8:33 AM
>To: STDS-802-3-10GBT@listserv.ieee.org
>Subject: [10GBT] Question about previous analysis of codes and undetected
>errors.
>
>
>Hugh and I were asked for references showing how undetected error rate was
>analyzed in previous 802.3 projects. Here is some of the material for the
>64b/66b code in IEEE p802.3ae.
>
>For 64b/66b, one analysis of the scrambler non-effect on CRC error
>detection can be found in:
>http://ieee802.org/3/10G_study/public/jan00/walker_1_0100.pdf
>
>This presentation estimates mean time to false packet acceptance:
>http://ieee802.org/3/ae/public/mar00/walker_1_0300.pdf
>
>This presentation discusses how the sync state and BER monitor machines
>react to drop sync when BER is high:
>http://ieee802.org/3/ae/public/jul00/walker_1_0700.pdf
>
>Regards,
>Pat  <http://ieee802.org/3/ae/public/may00/walker_1_0500.pdf>
>

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