Stefan Mink wrote :
> Are there other products I missed? Are there XENPAKs
> already available which work with main stream switch
> manufacturers although they don't sell them themselves
> so far?
I know that Extreme Networks already is shipping XENPAK enabled switches.  The max for a single fiberspan according to the specs = 40Km.  ( depending on the quality of the fibers and the attenuation. )
They have blade's for the Blackdiamond 68 series and the BD10K and the Summit400 has 2 slots where you can fit them in.
 
http://www.nwfusion.com/news/2004/0202extreme.html
 
http://www.extremenetworks.com/LIBRARIES/prodpdfs/products/BD_XENPAK_DS.pdf
 
The only downside that I've seen on the Summit400 is the limited EAPS support to 1 EAPS domain.. but if you design your network correct you can get away with it. Other than that .. they look like a great ( not too expensive ) way to setup a Metro layer2 network.
Met vriendelijke groeten,

Erik Bais

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