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Geoff
Guest
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 Posted: Fri Dec 22, 2006 1:50 pm Post subject: Time-Warner |
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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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Timothy Daniels
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| Posted: Sat Dec 23, 2006 12:54 am Post subject: Re: Time-Warner |
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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:
| Quote: | 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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