IEEE 40GE & 100GE

Bora Akyol bora.akyol at
Wed Dec 12 00:35:03 UTC 2007

IEEE is seeking feedback from network operators etc on the reach
requirements for 40GE & 100GE.

If you have direct feedback to give, please contact Chris Cole directly
(email address below).

This is very important as it will directly impact how much you pay for those
soon to be cherished 40 & 100 GE hardware in the future. I believe
information on how many patch panel connections you expect the links to go
through is also highly valued.



------ Forwarded Message
From: Chris Cole <chris.cole at FINISAR.COM>
Reply-To: Chris Cole <chris.cole at FINISAR.COM>
Date: Tue, 11 Dec 2007 16:21:31 -0800
Conversation: [HSSG] Reach Ad Hoc
Subject: Re: [HSSG] Reach Ad Hoc

During the November HSSG meeting, optics vendors made a presentation
proposing changing the 10km reach objective to 3km or 4km. One of my
motivations for working on the proposal was informal input from a number
of 100GE end users that >90% of their data center and short interconnect
needs would be met by a reach objective less then 4km (versus 10km.)
With such a reach distribution, a 4km or less optimized reach objective
would result in overall cost savings.

As part of the HSSG effort to review this proposal, numerous requests,
both informal as well as from the HSSG chair and Reach Ad Hoc chair,
have been made for contributions to quantify the 10km and under reach
distribution. While the optics vendors as suppliers can accurately
represent the relative costs of optics alternatives, they can not
represent end user requirements.

To date, we have seen no end user presentation or data supporting
changing the 10km reach objective to 4km or less. Unless such
contributions are forthcoming, it is likely that there will be no
motivation to make the change. This sentiment can be seen in the 12/7
Reach Ad Hoc conference call minutes.

I would encourage any HSSG participant that views their volume 100GE SMF
needs as better met by a 4km or shorter reach objective to make a
contribution containing reach distribution data in support of this
position. Otherwise we will move forward with the existing approved



From: Andy Moorwood [mailto:amoorwood at EXTREMENETWORKS.COM]
Sent: Tuesday, December 11, 2007 6:03 AM
Subject: [HSSG] Reach Ad Hoc

Colleagues, the meeting notes from our call last week are now posted on
the IEEE website
Thank you for your contributions

------ End of Forwarded Message

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