Chris--
Re: the article at
americasnetwork.com
I like this: it requires more Ciena equipment, installed all over a city. excerpt is below.
Oliver
GST Telecommunications Inc. (Vancouver, Wash.) is using the MultiWave
Sentry and FireFly DWDM systems in its 13-city Virtual Integrated Transport
and Access (VITA) network. The CLEC is using the FireFly in its Las Vegas
and Phoenix metro areas. Although it's a point-to-point system, GST is using it
in a jury-rigged, ring-like mesh topology, says Steve Hensley, vice president of
engineering at GST.
"Metro systems will be more advanced and provide us with a ring for drop and
insert. That would be more desirable, but in some cases people are not looking
for that much redundancy" Hensley says. "There are many applications where a
single thread is what they've called for and want to pay for, so we
accommodate that using the FireFly."
GST is using the metro system to reclaim multiple fibers that it otherwise would
have had to run to each customer in the buildings it serves. On a 10-building
block, for example, the carrier deploys a FireFly terminal in each building and
runs one fiber to each building and puts the traffic of every customer in that
building onto its own wavelength on that fiber. When metro products with
add/drop functionality are available, GST will be able to run a single fiber down
the street and pick up traffic from each building on that same fiber by putting a
DWDM ADM box in front of each building, Hensley explains. |
