[116718] in North American Network Operators' Group
RE: TransAtlantic 40 Gig Waves
daemon@ATHENA.MIT.EDU (Deepak Jain)
Fri Aug 14 17:11:44 2009
From: Deepak Jain <deepak@ai.net>
To: "Valdis.Kletnieks@vt.edu" <Valdis.Kletnieks@vt.edu>, Rod Beck
<Rod.Beck@hiberniaatlantic.com>
Date: Fri, 14 Aug 2009 17:11:09 -0400
In-Reply-To: <28620.1250277173@turing-police.cc.vt.edu>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
>=20
> > Well, the funny thing is that when I approached bandwidth buyers at
> > some well known publicly traded carriers, they told me that 40 gig
> > waves across the Atlantic were impossible.
>=20
> Theoretically impossible, or just "impossible on the fiber that's
> already underwater"? Big difference there.
>=20
> > Indeed, when we decided to launch LAN PHY 10 GigE, the builder of our
> > cable system told us it wasn't possible.
>=20
> Again, was this "impossible on a cable the builder was about to build",
> or "impossible on the cable that the builder put under the water
> already"?
1) 40G across large bodies of water is a nice achievement, kudos to everyon=
e involved everywhere.
2) Even on cables that are already deployed where impossible things couldn'=
t happen, have. It just takes a little longer for the technology involved. =
Case in point, I point to DSL over legacy (old) copper plants. Even super o=
ld fiber in the ground can do things that were originally considered imposs=
ible.=20
For existing undersea systems (whomever owns them) inline amplifiers as wel=
l as cable issues need to be ironed out. Now that folks know the cost of ro=
lling out a new cable vs the cost of engineering specialized solutions for =
those sorts of spans, they have decisions to make... but I have (and it ha=
s been proven) faith in technology to the impossible works... it just takes=
some time. :) 25Ghz spacing wasn't possible 5 years ago either. And there =
is hfDWDM spacing in labs somewhere too.
So other than for the folks that are provisioning 40G or who are considerin=
g deploying their own systems... what's the big deal?
Deepak
