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PART ONE: Crashing... 17.11.01 17:26
Publisher: dl <Dmitry Leonov>
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PART ONE: Crashing the System
On January 15, 1990, AT&T's long-distance telephone
switching system crashed.
This was a strange, dire, huge event. Sixty thousand
people lost their telephone service completely. During
the nine long hours of frantic effort that it took to restore
service, some seventy million telephone calls went
uncompleted.
Losses of service, known as "outages" in the telco
trade, are a known and accepted hazard of the telephone
business. Hurricanes hit, and phone cables get snapped
by the thousands. Earthquakes wrench through buried
fiber-optic lines. Switching stations catch fire and burn to
the ground. These things do happen. There are
contingency plans for them, and decades of experience in
dealing with them. But the Crash of January 15 was
unprecedented. It was unbelievably huge, and it occurred
for no apparent physical reason.
The crash started on a Monday afternoon in a single
switching-station in Manhattan. But,...
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