Comcast Stands By Its Internet Filtering

Comcast has admitted that it intentionally slows down some traffic on its network, including music and movie downloads.

The company said in a filing with the Federal Communications Commission that slowing the transfer of music or video between subscribers sharing files is necessary to manage traffic flow over its network.

Comcast said network controls are necessary and that it uses "temporary delays" of video, music and other files shared between computers using BitTorrent. It compared its practices to a traffic-ramp control light that manages the entry of more vehicles onto a freeway during rush hour. "One would not claim that the car is 'blocked' or 'prevented from entering the freeway; rather it is briefly delayed," the company's statement said.

BitTorrent said Comcast should increase its bandwidth on its networks and upgrade its systems instead of restricting how customers use its service.