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OIF CEI-28G-VSR Response Ad Hoc Meeting: June 29, 2010 Meeting notes prepared by John D’Ambrosia Attendees: John D’Ambrosia, Force10 Networks (Chair) Tim Warland, Applied Micro Matt Brown, Applied Micro Steve Trowbridge, Alcatel-Lucent Adam Healey, LSI Rita Horner, Avago Andre Szczepanek, Inphi David Law, 3COM Tom Palkert, Luxtera / Xilinx Petar Pepeljugoski, IBM Greg McSorley, Amphenol Ali Ghiasi, Broadcom Wael Diab, Broadcom Iain Robertson, TI Sharon Lutz, US Conec Mike Fogg, Tyco Rod Smith, Tyco Jonathan King, Finisar Joe Dambach, Molex Beth Donnay, Force10 Networks Ken Ly, Cisco Farzin Firoozmand, Semtech Frank Chang, Vitesse Chris Di Minico, 3M Communications Rick Rabinovich, Alcatel-Lucent George Noh, Vitesse Lloyd Budd, Nexans Jon Anderson, Opnext Jitendra Mohan, National Semi Nathan Tracy, Tyco Galen Fromm, Molex Piers Dawe, IPTronics Oren Sala, Mellanox John Petrilla, Avago Charles Moore, Avago Mike Dudek, QLogic Vittal Balasubramanian, FCI Marco Mazzini, Cisco Dave Hess, Nexans Scott Kipp, Brocade Charlie Staley, 3M Mark Lettang, 3M Ziad Hatab, Vitesse Link for patent policy shown. Call for patents
done. No one came forward. Submitted Presentations 1.
John D’Ambrosia, Force10 Networks – Ad Hoc:
OIF CEI-28G-VSR Liaison Response, dambrosia_01_0610.pdf 2.
John D’Ambrosia, Force10 Networks – OIF
CEI-28G-VSR and the IEEE 802.3ba-2010 Architecture, dambrosia_02_0610.pdf 3.
Mike Dudek, Qlogic – Investigation of limiting
solutions for 850nm 16GFC, 09-030v0.pdf 4.
Francois Tremblay, Gennum - Module retiming and power
IEEE29thJune V6s.pdf 5.
Ali Ghiasi, Broadcom – Evolution of 100G Host to
Module, ghiasi_01_0610.pdf 6.
Greg McSorley, Amphenol – QSFP Data, AMPHENOL
QSFP data.pdf 7.
Mike Fogg, Tyco – 28Gb/s I/O Update, fogg_01_0610.pdf 8.
Galen Fromm, Molex – 25G QSFP Variant,
Fromm_01_0610.pdf Presentations may be found at http://www.ieee802.org/3/email_dialog/thrd1.html.
Ad hoc members were reminded that discussions should be directed to the 802.3 Working
Group Dialog Reflector. (To subscribe to the reflector see http://www.ieee802.org/3/dialog_reflector.html)
An additional request for presentation time was made by Takeshi
Mishimura, Yamaichi. The group heard Presentations 1 – 5 listed
above. Due to time limitations, connector presentations (6 – 8 and request
from Mishimura) will be heard at an additional meeting on Thursday July 9 from
11am to 1pm (Eastern). Details for call will be sent out. General discussions – ·
General agreement about 25Gb/s electrical
interface to support Clause 88, but recognition that future 10Gb/s PMDs will
need 25Gb/s based interfaces. (It is anticipated that this statement will
undergo further word-smithing by the ad hoc). At this time though only
Clause 88 can be pointed to for input to OIF. ·
Conversation regarding recognition of need for
retimed and partial / non-retimed interfaces. Application loss / reach was
discussed in general terms for the two types of applications with references to
previous presentation by Gary Nicholl to 802.3ba in July 2008. Also, if
retiming is added, then longer lengths should be considered. ·
Thought needs to be given to how we proceed –
or there could be an unnecessary proliferation of interfaces. John / Ali’s
presentations stressed separating the two types of interfaces in order to make
forward progress. Ali suggested looking at the development of the two
interfaces in two phases – phase 1 – retimed interfaces for
chip-to-chip and chip to module and phase 2 – partial / non-retimed
interfaces ·
Reminder to group that it is anticipated that the
Working Group chair will rule the motion to approve the liaison response as
technical, thus requiring 75% or greater approval. |