On Network backbones.
It's very clear. excitehome.net didn't own a OC48 system. They don't have the fiber between cities.
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AT&T has Fiber though att.com
AT&T is leading the explosion of e-commerce, streaming media and fast Web connections.
Installing 16,500 new route miles of the latest-generation fiber-optic cable linking 30 major metropolitan areas.
First in the industry with an OC-192 (10 billion bits per second or 10 gigabits) Internet protocol (IP) backbone coast to coast, connecting Boston, Chicago, Los Angeles, New York City, St. Louis, and San Francisco.
Able to transmit 25 feature-length movies across the country in less than two minutes.
By placing Web content closer to end users at the edge of the IP network, Website download times are improved as much as 65%.
Fastest-performing IP backbone (as measured by Keynote Systems).
Industry leader in the deployment of Dense Wave Division Multiplexing (DWDM) technology, dividing an optical fiber into many channels, each carrying 10 gigabits of information.
In 2001, we will introduce the Terabit Network as we start deploying 160-channel DWDM systems to further increase capacity and dramatically decrease costs. On OC-192 routes, that represents 10 billion bits per second x 160 or 1.6 trillion bits per second on a single fiber strand.
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Fiber
AT&T has high-capacity fiber to more places than any other carrier.
More than 61,000 route miles of fiber-optic cable. About 45,000 miles carry long-distance traffic; 16,000 miles support local service.
OC-48 service to more than 500 points-of-presence in the continental United States.
Can provide OC-192 service to any location.
Offers local business services in 71 major markets, using 106 local switches and more than 5,100 metropolitan SONET rings. More than 6,250 office buildings and customer locations are directly connected to the AT&T Network with high-capacity fiber.
Long distance service everywhere (250 nations and territories).
Dial-up Internet access in 850 cities in 59 countries.
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Reliability
AT&T's network offers more reliability because we're applying what we learned in a century of managing voice networks to today's and tomorrow's packet networks.
Patented Real Time Network Routing (RTNR) system automatically completes domestic voice calls using 100+ possible routes.
FASTAR® and FASTAR II® systems automatically reroute circuits following a failure on the core network. FASTAR II reroutes circuits within 60 milliseconds of a failure.
Most reliable IP and data services: 99.99 percent reliability for IP service and the ATM (Asynchronous Transfer Mode) and Frame Relay packet services used by large business customers. Service Level Agreements for AT&T's Internet connectivity services for business specify no more than 60 milliseconds of latency and 0.7% packet loss per month.
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I don't see any info on Excite@home's page. I think they just leased the pipes from T.
I fail to see how anyone could think that T couldn't match @home's network as they already had one in place.
It's pure ignorance to think otherwise.
M. |
