The 40km/10km cost ratio is between 1.6x and 2x, depending on the source. The 10km/4km cost ratio is between 1.15x and 1.3x, again depending on the source. Chris -----Original Message----- From: Mikael Abrahamsson [mailto:swmike@swm.pp.se] Sent: Wednesday, December 12, 2007 11:17 PM To: Chris Cole Cc: nanog@merit.edu Subject: RE: IEEE 40GE & 100GE On Wed, 12 Dec 2007, Chris Cole wrote:
uniform agreement that the ratio of <10km to 10km to 40km applications
is 10x or more. So given this view, it would be a very hard sell to convince the IEEE to only support a single 40km reach. In effect this would double the optics cost for most users.
Ah, single reach wasn't my intention. The point I tried to make was that if 10km and 40km is very near in price, and 3km is considerably cheaper, then it makes more sense to do 3km and 40km reaches to get two distinct prices and reaches. -- Mikael Abrahamsson email: swmike@swm.pp.se