According to MCI WorldCom spokeswoman Linda
Laughlin, the carrier was upgrading a switch somewhere
on the frame relay network when the device began to
"experience congestion" and the initial outage began.
Laughlin was unable to say where the faulty upgrade
occurred or what the upgrade was for.
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coincidentally, that _very_ same evening, (thurday night) Bell Atlantic
asked for a 10 minute maintence window on an SMDS Ds3 that connects a
small regional popsite. When asked what the maintence was for, i was
informed it was "to do a software upgrade on the switch"
But we know talking about successful upgrades isn't nearly as interesting.