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Fast and Secure Protocol
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<p>The Fast Adaptive and Secure Protocol (FASP) is a <a href="/facts/Proprietary_software/9zcskxYL">proprietary</a> data transfer <a href="/facts/Communication_protocol/5uady7cB">protocol</a>. FASP is a network-optimized network protocol created by Michelle C. Munson and Serban Simu, productized by <a href="/facts/Aspera_(company)/GPAcLtQH">Aspera</a>, and now owned by <a href="/facts/IBM/QszA7nwd">IBM</a> subsequent to its acquisition of Aspera. The associated client/server software packages are also commonly called Aspera. The technology is <a href="/facts/Patented/LjT2bG3A">patented</a> under US Patent #8085781, <i>Bulk Data Transfer</i>, #20090063698, <i>Method and system for aggregate bandwidth control</i>. and others. </p><p>Built upon the <a href="/facts/Connectionless_communication/MfMys8t7">connectionless</a> <a href="/facts/User_Datagram_Protocol/dxLU0D6q">UDP</a> protocol, FASP does not expect any feedback on every <a href="/facts/Network_packet/xCYf8SJu">packet</a> sent, and yet provides fully reliable data transfer over best effort IP networks. Only the packets marked as really lost must be requested again by the recipient. As a result, it does not suffer as much loss of throughput as <a href="/facts/Transmission_Control_Protocol/WW4sPrt9">TCP</a> does on networks with high <a href="/facts/Latency_(engineering)/6Bjhn30H">latency</a> or high <a href="/facts/Packet_loss/6fuIcFHk">packet loss</a> and avoids the overhead of naive "UDP data blaster" protocols. The protocol innovates upon naive "data blaster" protocols through an optimal control-theoretic retransmission algorithm and implementation that achieves maximum <a href="/facts/Goodput/SfYDPR2d">goodput</a> and avoids redundant retransmission of data. Its control model is designed to fill the available bandwidth of the end-to-end path over which the transfer occurs with only "good" and needed data. </p><p>Large organizations like the <a href="/facts/European_Nucleotide_Archive/Fsjx6X24">European Nucleotide Archive</a>, the US <a href="/facts/National_Institutes_of_Health/G3Eytfcc">National Institutes of Health</a> <a href="/facts/National_Center_for_Biotechnology_Information/6Xj5wCbu">National Center for Biotechnology Information</a> and others use the protocol. The technology was recognized with many awards including an Engineering Emmy from the Academy of Film and Television. </p>