1. FileZilla Server.
http://filezilla-project.org/download.php?type=server
2. Ns-3.
http://www.nsnam.org
3. Al-Jaroodi, J., Mohamed, N.: Ddftp: dual-direction ftp. In: Proceedings of the International Symposium on Cluster, Cloud and Grid Computing, pp. 504–513 (2011)
4. Bernstein, D.J.: Pipeling.
http://cr.yp.to/ftp/pipeling
5. Byers, J.W., Luby, M., Mitzenmacher, M.: Accessing multiple mirror sites in parallel: using tornado codes to speed up downloads. In: Proceedings of IEEE International Conference on Computer Communications, pp. 275–283, 21–25 March 1999