GRIDFTP is an open source and open standard high speed file transfer service, employing digital certificates and extensions to the existing File Transfer Protocol (FTP). GRIDFTP can be deployed as part of the Globus Toolkit or as a stand alone service.

The inherent TCP/IP delay problem of FTP is overcome by employing parallelisation and other techniques, to provide an efficient, secure, high speed content movement service.

This white paper documents the performance of gsiftp globus-url-copy over an emulated Wide Area Network, with latency and packet loss.

Many thanks to Belfast e-Science Centre, for instructions on GRIDFTP server installation and setup, and to Chris Chambers and Peter Brightwell for their advice on optimising TCP settings.

This document was originally published in 2010.