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Technology Stocks : Frank Coluccio Technology Forum - ASAP -- Ignore unavailable to you. Want to Upgrade?

To: Frank A. Coluccio who wrote (14)	9/30/1999 6:32:00 AM
From: Frank A. Coluccio	Read Replies (3) \| Respond to of 1782

Re: Massive Fiber Cut Pauses East-West Traffic zdnet.com Massive Fiber Cut Pauses East-West Traffic By Max Smetannikov, Inter@ctive Week September 29, 1999 11:42 AM PT At least four Internet service providers are experiencing severe traffic backlogs [fac edit: new technical term .grin.] because of a massive fiber-optic cable cut that put out four OC-192 lines connecting data networks on the East and West Coasts. Industry sources told Inter@ctive Week that the cut was accidentally made by an unidentified gas company in Ohio around 12:30 EST today. The news is sending shockwaves through the networking community, with many carrier operators struggling to understand why, all of a sudden, their traffic is routed through London and Denmark. At least four Internet service providers are being affected by the outage. Various online sources have named AboveNet; GTE Internetworking; and MFS Communications, a WorldCom subsidiary, as ISPs hit the worst. "Let me tell you, it really hurts right now," said Dave Rand, AboveNet's chief technology officer. "We were given a 1 hour estimate for this problem to be corrected." GTE Internetworking's public relations department had heard of an outage in Pennsylvania earlier today, but had no comment on the Ohio development. MCI WorldCom public relations didn't have an immediate answer to the query. ==== A later report from NANOG: Here is what I have recieved thus far: Updated By: psarrate at 09-29-1999 19:24 GMT The teleco reports that the cut may have been caused by gas company workers while they were doing construction work in the area. Estimated time to repair (ETR) is 4 to 6 hours. The reason for this extened time is because there is not enough slack in the cable to bring the two cut ends together. An additional section of fiber is needed to make the splice. The needed fiber is hours away and needs to be trucked in.

To: Frank A. Coluccio who wrote (14)	9/30/1999 10:36:00 AM
From: ftth	Read Replies (1) \| Respond to of 1782

Hi Frank, I'd like to get YOUR comments on it. A couple questions for you: re<< Transparent LAN service will require the evenly spread model of bandwidth distribution.>> Is this really true, or just a "taking the easy way out" view of what really is a far more complex problem than can be described by a linear/uniform distribution? In fact, the statement in the paragraph that follows the above: <<The next-generation carrier environment will demand an inter-office transmission system that is a more agile manager of bandwidth...>> seems to imply a non-linear model. re:<<About 70 percent of the SONET rings operate at OC12-or-less line rates. >> Does that seem accurate to you? <<Bandwidth scalability and the ability to overlay existing SONET rings can be accomplished through the use of DWDM >> Does this provide the fine level of granularity the author speaks of? It seems in one sense the author is saying the SONET ring topology is just "getting in the way and should be dropped rather than band-aided into oblivion," and in another sense the author says next generation carriers need to consider compatibility as a foremost concern: <<This must also work in rings for the purpose of overlaying existing SONET fiber topology and for service providers that are more acclimated to ring operation>> I'm not real sure what he's trying to say, TTTT. dh