Re: [802.3BA] XLAUI / CAUI Ad Hoc
A few quick points on this:
1. The project objective is 10^-12. Like 802.3ae, where the XAUI specification is also 10^-12. Expecting two links in a chain to be both running at the worst BER at the same time is unrealistically pessimistic.
2. The ICs for CAUI/XLAUI have to deliver 10^-12 with a connector between them, which adds significant reflections and crosstalk. For a chip-to-chip link without a connector, the BER will be much better. More investigation would be needed to determine if this transforms 10^-12 to 10^-15; it may.
3. ICs for PPI (for 40GBASE-SR4 and 100GBASE-SR10) have to generate less jitter and tolerate more jitter than CAUI/XLAUI. I believe that ICs that meet these specs will achieve 10^-15 or better in a CAUI/XLAUI application.
So, I don't see a need for anything in the draft. Quantifying the effect of the connector would be helpful, but ICs for applications 2 and 3 above will be available; use one of them for 10^-15.
Piers
-----Original Message-----
From: Ryan Latchman [mailto:Ryan.Latchman@xxxxxxxxxx]
Sent: 01 December 2008 13:55
To: STDS-802-3-HSSG@xxxxxxxxxxxxxxxxx
Subject: [802.3BA] XLAUI / CAUI Ad Hoc
Dear 802.3ba Colleagues,
I'd like to schedule the next meeting for the XLAUI / CAUI Ad Hoc as follows:
Friday December 5th 8:30am - 10:30am US PDT
Dial-in Number (Canada & USA) :1 877 234 4610
Participant Conference Access code: 4405734 # (see below for additional phone numbers)
Presentations should focus on technical details / values related to the nAUI specification. In particular, I would like to focus on the BER objective of the interface. For additional information, please see the last presentation on this topic at http://www.ieee802.org/3/ba/public/nov08/gustlin_02_1108.pdf
Anyone wishing to present, please follow the guidelines described on the Procedure for Presenters web page:
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If you are planning to participate please take a moment to read the IEEE patent policy available here: http://standards.ieee.org/board/pat/pat-slideset.ppt.
Ryan Latchman invites you to attend this online meeting.
Topic: Ryan.Latchman@xxxxxxxxxx's meeting
Date: Friday, December 5, 2008
Time: 11:30 am, Eastern Standard Time (GMT -05:00, New York )
Meeting Number: 593 512 720
Meeting Password: XLAUICAUI
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* Participant Conference Access code: 4405734 #
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Best Regards,
Ryan
Ryan Latchman
Market Manager
Analog & Mixed-Signal Products
Gennum Corporation
Phone: 905 632 2999 x 1610