IEEE 40GE & 100GE

Robert E. Seastrom rs at
Fri Dec 14 00:56:43 UTC 2007


Those were straw-man numbers.  The point is that eventually it all
becomes a commodity and mass-produced, and I'd like to see the stuff
that would be maximally useful to us be the commodity that benefits
most from the mass production.  Hence my preference for the 10km optics.


"Chris Cole" <chris.cole at> writes:

> Owen,
> You are an optimist. Initially, the pricing will be more then an order
> of magnitude higher. :)
> Chris
> -----Original Message-----
> From: Owen DeLong [mailto:owen at] 
> Sent: Thursday, December 13, 2007 2:51 PM
> To: Stephen Sprunk
> Cc: Chris Cole; Mikael Abrahamsson; North American Noise and Off-topic
> Gripes
> Subject: Re: IEEE 40GE & 100GE
> So, assuming this translates roughly to optics being:
> 	$1,000			 4km
> 	$1,300			10km
> 	$2,600			40km
> You'd rather have to pay $2,600 for all your campus links than
> $1,300 for all your LAN links?
> My preference would be quite different.  I'd much rather pay $1,300 for
> the LAN links than $2,600 for the Campus links.
> Owen
> On Dec 13, 2007, at 1:51 PM, Stephen Sprunk wrote:
>> Thus spake "Chris Cole" <chris.cole at>
>>> 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.
>> If those numbers translate into prices (not costs), then I'd prefer  
>> to see 40km and 4km optics, with no 10km optics.  The important  
>> point is that the 40km optics neet to be able to handle 4.1km links  
>> with no attenuators, preferably without any human tuning at all.   
>> You only pay the extra capital cost once (if there even is any, due  
>> to more volume of fewer parts), but you pay labor and sparing over  
>> and over.
>> S
>> Stephen Sprunk         "God does not play dice."  --Albert Einstein
>> CCIE #3723         "God is an inveterate gambler, and He throws the
>> K5SSS        dice at every possible opportunity." --Stephen Hawking

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