Fast and Secure Protocol: Difference between revisions

Revision as of 02:20, 16 June 2023

Revision as of 02:37, 16 June 2023

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{{IPstack}}

The '''Fast Adaptive and Secure Protocol''' ('''FASP''') is a [[Proprietary software|proprietary]] data transfer [[Communication protocol|protocol]]. FASP is a network-optimized network protocol created by Ying Xu, Michelle C. Munson, and Serban Simu, productized by [[Aspera (company)|Aspera]], and now owned by [[IBM]] subsequent theto its acquisition of Aspera by IBM. The associated client/server software packages are also commonly called Aspera.<ref name="register">{{cite web|url=https://www.theregister.co.uk/2015/10/01/aspera/|title=Aspera high speed file transfer: Let the cloud protocol wars begin|website=[[The Register]]}}</ref><ref name="ena">{{cite web|url=https://www.ebi.ac.uk/ena/browse/read-download#downloading_files_aspera|title=European Nucleotide Archive: Downloading using Aspera}}</ref> The technology is [[patented]] under US Patent #20090063698, ''BulkMethod Dataand Transfer''system andfor othersaggregate bandwith control''.<ref>{{cite web|url=https://www.google.com/patents/US20090063698|title=Method and system for aggregate bandwidth control}}</ref>

Built upon the [[Connectionless communication|connectionless]] [[User Datagram Protocol|UDP]] protocol, FASP does not expect any feedback on every [[Network packet|packet]] 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 [[Transmission Control Protocol|TCP]] does on networks with high [[Latency (engineering)|latency]] or high [[packet loss]] and avoids the overhead of naive "UDP data blaster" protocols.<ref>{{cite web|url=http://downloads.asperasoft.com/en/technology/shortcomings_of_TCP_2/the_shortcomings_of_TCP_file_transfer_2|title=Aspera - High-speed file transfer software -|website=downloads.asperasoft.com}}</ref><ref>{{cite web|url=https://gcn.com/Articles/2014/05/15/FOSE-Data-transfer-protocol.aspx|title=FASP transfer protocol speeds data transmission to the cloud}}</ref> The protocol innovates upon naive "data blaster" protocols through an optimal control-theoretic retransmission algorithm and implementation that achieves maximum goodput 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.