FTP-M: An FTP-like Multicast File Transfer Application

Manamohan Mysore and George Varghese
September 11, 2001

Research in Reliable Multicast has focused on providing scalable, semi-reliable delivery of data. Such solutions based on schemes like SRM have proved adequate for multicast delivery of multimedia data or whiteboard applications, but are inadequate for the strict delivery semantics of file transfer. This paper describes a simple application called FTP-M that provides an efficient one-to-many multicast data transfer by simply extending the FTP protocol and user interface. FTP-M relies on a {\em strictly-reliable} Reliable Multicast protocol layer beneath to send data reliably to multiple receivers. In this paper, we describe the design and implementation of FTP-M. We suggest that FTP-M has the potential to be adopted as a standard way to achieve multicast file transfer.

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