Re : Re: SSH2 Encryption
--- Matt Zimmerman <mdz@debian.org> wrote: > On Sun,
Jun 16, 2002 at 11:33:34PM +0200, Robert van
> der Meulen wrote:
>
> > Quoting Nathan E Norman (nnorman@micromuse.com):
> > > Right; when you bought it, it was "dark". Once
> you put light into it,
> > > it's no longer dark. If someone thinks "dark"
> denotes who owns the
> > > tranceivers, well, they're deluded :)
> >
> > Both meanings are 100% correct, and 100%
> acceptable terms. Maybe if you
> > compare the term 'dark fiber' to 'raw copper' (as
> in telco/DSL land)
> > you'll find it a less deluded term (unless you
> think people are trying to
> > do DSL over an interconnected network of copper
> mines).
>
> The difference is that 'raw copper' refers to pairs
> which don't pass through
> certain switching equipment. This is true
> regardless of what kind of signal
> you send over it. 'dark fiber', however, implies
> that there is no signal on
> it. So while you can order, provision and pay for
> dark fiber, you cannot
> use it, since at the instant you do, it becomes
> something else. ;-)
>
> (but yes, I know what you mean, and this is getting
> increasingly off-topic)
>
> --
> - mdz
To put this one to bed then,
dark fibre is just the fibre-optic cable without the
Optical Line Terminating Equipment that turns it into
a telecommunications system.
Fibre is fibre but if we're going to splice hairs over
the issue :0) this is used, at least for the company I
work for, to indicate that you just get the line only.
Si Darlington
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--- Begin Message ---
On Sun, Jun 16, 2002 at 11:33:34PM +0200, Robert van der Meulen wrote:
> Quoting Nathan E Norman (nnorman@micromuse.com):
> > Right; when you bought it, it was "dark". Once you put light into it,
> > it's no longer dark. If someone thinks "dark" denotes who owns the
> > tranceivers, well, they're deluded :)
>
> Both meanings are 100% correct, and 100% acceptable terms. Maybe if you
> compare the term 'dark fiber' to 'raw copper' (as in telco/DSL land)
> you'll find it a less deluded term (unless you think people are trying to
> do DSL over an interconnected network of copper mines).
The difference is that 'raw copper' refers to pairs which don't pass through
certain switching equipment. This is true regardless of what kind of signal
you send over it. 'dark fiber', however, implies that there is no signal on
it. So while you can order, provision and pay for dark fiber, you cannot
use it, since at the instant you do, it becomes something else. ;-)
(but yes, I know what you mean, and this is getting increasingly off-topic)
--
- mdz
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