On 10 Dec 2012, at 07:46, Saku Ytti <[email protected]> wrote:

>> It's because it's enterprise gear, and from what I'm told,
>> enterprise has lovefest with multimode fiber and needs bulky optics
>> to handle LX4 to get sufficient reach on their legacy cable plants.
> Can you name optic only available in X2 casing, not XFP? I'd be surprised
> to find one.

10GBase-LX4? Since it needs to fit 4 lasers + mux inside (plus, also, the 
4-lanes thing). Of course this should have been mostly replaced by 10GBase-LRM 
now.

> When I asked years ago in San Jose EBC from BU guy about their love for X2
> the simply stated because it's most deployed/common 10GE switch optic in
> the market.
> I don't know if he was being funny or serious, considering Cisco was (still
> is?) at that time shipping most 10GE ethernet ports in the world. So even
> if their optic was techno goblins flickering glowsticks in a rave, it would
> still be factually true statement.

I'd prefer the glowsticks to an X2.

On the other hand, converting an X2 slot to SFP+ is quite cheap now and a very 
viable option.

-- 
Will
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