[c-nsp] 10G DWDM UP/DOWN

[Gert Doering]

Hi,

On Thu, Sep 23, 2010 at 01:42:15PM +0200, Geert Nijs wrote:
> Just a small question, maybe off topic: is a 10GE DWDM circuit always
> composed of 4 x 2.5 Gbps channels, because i was thinking that classical
> dwdm consisted of 32x 2.5 Gbps channels.

You can do 10GE DWDM with 1x 10Gbps just fine :-)

Whether or not a DWDM system is N x <anything special> really depends on
the type of system - if it's just a passive MUX/DEMUX (half-transparent
mirrors with colour filters) you can do anything over it, as long as 
the sender has proper coloured optics - like "1x GE, 1x 10GE, 1x 2G FC"
or such.

On an active DWDM system that actually understands the signals it's
transmitting (and possibly re-shaping to form), you depend on whatever
the system gives you.

gert
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USENET is *not* the non-clickable part of WWW!
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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