DEVICE AND METHOD FOR CONTROLLING NETWORK FOR DOWNLOADING FILE AND NETWORK SYSTEM THEREFOR

摘要

Provided is a method of improving a user's service use and reducing server operating costs by guranteeing a minimum file download speed to a user. A network controlling device for downloading file includes: an access detecting unit for detecting an access of a user terminal to a P2P network in order to download a file; a speed measuring unit measuring a file download speed of the user terminal, which is detected by the access detecting unit, via the P2P network for a predetermined time after the file download starts; and a network connection controlling unit controlling the user terminal to access a network of a download server in order for the download server to directly transmit a file to the user terminal if the file download speed measured by the speed measuring unit is less than a critical speed.