Fast Send Protocol – Minimizing Sending Time in High-Speed Bulk Data Transfers

Over the last decades Internet traffic has grown dramati-cally. Besides the number of transfers, data sizes have risen as well. Traditional transfer protocols do not adapt to this evolution. Large-scale computational applications running on expensive parallel computers produce large amounts of data which often have to be transferred to weaker machines at the clients ’ premises. As parallel computers are fre-quently charged by the minute, it is indispensable to min-imize the transfer time after computation succeeded to keep down costs. Consequently, the economic focus lies on min-imizing the time to move away all data from the paral-lel computer whereas the actual time to arrival remains less (but still) important. This paper describes the design and implementation of a new transfer protocol, the Fast Send Protocol (FSP), which employs striping to interme-diate nodes in order to minimize sending time and to utilize the sender’s resources to a high extent. 1