IEEE 40GE & 100GE

Chris Cole chris.cole at
Thu Dec 13 20:52:07 UTC 2007

The 40km/10km cost ratio is between 1.6x and 2x, depending on the

The 10km/4km cost ratio is between 1.15x and 1.3x, again depending on
the source.


-----Original Message-----
From: Mikael Abrahamsson [mailto:swmike at] 
Sent: Wednesday, December 12, 2007 11:17 PM
To: Chris Cole
Cc: nanog at
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 at

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