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Posted by Timothy Daniels on December 22, 2006, 1:54 pm
The CED Magazine reference states:
"The Cox Communications “Ring-in-Ring” fiber architecture
is an integration of a “dedicated” fiber ring and a “loop-through”
fiber ring in the same fiber cable sheath [..............]"
Too bad the rings are in the same cable.
*TimDaniels*
"Geoff" wrote:
> We had a little excitement on Wednesday, but not much is being said
> other than exactly where to cut the cable to do this. My question is,
> after looking at the chart, T-W's architecture is on the lower right,
> what was cut, a ring?
>
> http://www.cedmagazine.com/contents/pdf/ced0903fiberchart.pdf
>
>
>
> Here is a myth from T-W which is not a myth, it seems:
>
> http://raleigh.twcbc.com/about/cable_vs_dsl.cfm
>
> Myth 5
> HFC cable services are less reliable than the data services of a
> telephone company.
>
> Fact: Time Warner Cable's HFC cable services run over a ring-in-ring
> redundant network. The ring architecture provides multiple paths to
> each of Time Warner Cable's HFC nodes serving 1,000 or fewer
> customers. Should even one of the fibers to that node break, user
> traffic can continue to flow uninterrupted across another redundant
> fiber path. As such, the self-healing ring-in-ring distribution offers the
> user a continuous, secure connection to the Internet.
>
>
>
> . . . now read this story from Wednesday (one truck did this):
>
>
> http://www.wral.com:80/news/local/story/1114129/
>
> Cable, Phone, Internet Service Restored to Thousands
>
> Posted: Dec. 21 11:51 a.m.
> Updated: Dec. 21 5:40 p.m.
>
> Raleigh - As many as 250,000 Time Warner Cable customers in the
> Triangle area lost their service for almost four hours Thursday after a
> dump truck knocked out a major cable, officials said.
>
> Time Warner spokesman Tom Lawrence said a fiber-optic cable on
> Glenwood Avenue was cut at about 10:45 a.m. and restored at 2:15 p.m.
>
> A dump truck drove under the cable that crossed Glenwood near
> Brownleigh Road, and the tarp-rolling mechanism designed to keep
> debris from flying out snagged a cable with 144 fiber-optic lines,
> Lawrence said. The cable wasn't severed but was pulled loose from
> a connector box, he said.
>
> Television, digital phone and Road Runner Internet service were
> affected in Raleigh, Cary, Wilson, Goldsboro, Farmville and patr of
> Pitt County, Lawrence said. Service in Durham, Chapel Hill and
> Moore County wasn't affected by the outage, he said.
>
> About 70 percent of Time Warner's Road Runner customers and about
> 60 percent of its digital phone customers were affected, he said. They
> either lost service entirely or experienced slow Internet connections or
> "degraded quality" on their phone calls, he said.
>
> Cable television service was affected on some channels in some areas,
> Lawrence said.
>
> -g
>
>
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