fasp vs. FTP

fasp vs. FTP on Cross-continental Links

Aspera fasp sustains the highest possible end-to-end file transfer rates on cross-continental and intercontinental file transfers where latencies are high and packet loss is variable. An FTP file transfer from LA to New York (90 ms) will achieve 5-6 Mbps when loss is low (0.1%). As congestion on the link increases (1%), FTP dramatically reduces its rate to 1.4 Mbps. In contrast, fasp transfers data at link capacity. On a 155 Mbps link with 90 ms/1%, fasp transfers at 154 Mbps, 100 times faster than FTP. Using a more typical 45 Mbps link, the transfer is still 30 times faster than FTP.