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Reference.org
File Service Protocol
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<p>File Service Protocol (FSP) is a <a href="/facts/User_Datagram_Protocol/dxLU0D6q">UDP</a>-based replacement for the <a href="/facts/File_Transfer_Protocol/THuWgzfw">File Transfer Protocol</a>, designed for anonymous access with lower hardware and network requirements than FTP. In particular, because it uses UDP, it avoids the problems that many FTP servers have had with requiring a separate process for each client, and because it is built to use an unreliable protocol, it can more easily handle resuming a transfer after a network failure. </p>