> Pakistan Telecom established a route that directed requests for YouTube videos from local Internet subscribers to a "black hole," where the data was discarded, according to Renesys. Pakistan Telecom's mistake was that it then published that route to its international data carrier, PCCW Ltd. of Hong Kong, Underwood said.
The second mistake was that PCCW accepted that route, Underwood said. It started directing requests from its customers for YouTube data to Pakistan. And since PCCW is one of the world's 20 largest data carriers, its routing table was passed along to other large carriers w…