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Re: IEEE 40GE & 100GE
On Wed, 12 Dec 2007, Robert E. Seastrom wrote:
A practical question here: does anyone know offhand if 4km reach is adequate for interbuilding access (i.e., DC 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.
I'm not in any of the Equinix facilities, but I do run a decent-sized urban campus network and a 3km-4km distance limitation would be cutting it really close for me in some cases. Some of the 10G links on my backbone today do require multiple physical cross-connects, which would eats into the link budget. Most of my backbone connections work find with 10G-LX4 optics, but there are a few places where 10G-ER is needed.
I haven't read the draft spec yet to see what's being proposed for a link budget at 3/4/10km, but that's just as important as the physical distance.
Bora Akyol <[email protected]> writes: