Re: Hurricane Electric AS6939

[Saku Ytti <saku () ytti fi>]

On Wed, 14 Oct 2020 at 11:11, Forrest Christian (List Account) <
lists () packetflux com> wrote:

Yes, what you would be ordering is typically a lit L2 circuit.   However,
> my experience is that certain carrier salespeople tend to call anything
> like this a 'wave'.  I have had lots of discussions over the years with
> various salespeople about the difference, and yes, it's pretty much always
> lit L2.   Centurylink (now Lumen) even sells a service they call "Encrypted
> Wavelength Service".  Not sure how one encrypts light....

To go any distance of significance you don't do pure light, pumping the
light increases signal but it increases noise too, eventually you have to
regen the signal. Most of these active services are frame aware from first
hop to last hop and encryption is on the cards without being in any
meaningful way different to your unencrypted wave.
This is done typically even in short distances, as the signal you give
them, is not the signal they want to put in their network, so they'll use a
transponder to change it to something more applicable.

Passive optical mux is not the common case. But it indeed would not give
opportunity for encryption in technology what we have today (but I do not
understand enough to say it would be fundamentally impossible).

-- 
  ++ytti