North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: IEEE 40GE & 100GE
A practical question here: does anyone know offhand if 4km reach is adequate for interbuilding access (i.e., DC[124] to DC3) access at Equinix Ashburn, including worst-case interior wiring and cross connects? I'm thinking that's cutting it close. The enterprise people are substantially less likely to find themselves with a lot of interconnections in a GCE (Ginormous Campus Environment) than we are, and I suspect that skews the 90% number a bit. Folks who are more familiar with the layout of other facilities may wish to chime in here. ---Rob Bora Akyol <[email protected]> writes: > 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. > > Regards > > Bora > > > From: Chris Cole <[email protected]> > Subject: Re: [HSSG] Reach Ad Hoc > To: <[email protected]> > Date: Tue, 11 Dec 2007 16:21:31 -0800 > Reply-To: Chris Cole <[email protected]> > > 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 > objectives. > > Chris > > ________________________________________ > > From: Andy Moorwood [mailto:[email protected]] > Sent: Tuesday, December 11, 2007 6:03 AM > To: [email protected] > Subject: [HSSG] Reach Ad Hoc > > Colleagues, the meeting notes from our call last week are now posted on > the IEEE website > http://www.ieee802.org/3/hssg/public/reach/MeetingNotes_r1_1207.pdf > Thank you for your contributions > Andy > > ----------
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