This paper proposes Split-encoding mechanism, an alternative to available encoding and compression techniques for transmitting large medical images. In the Split-protocol, a client establishes a connection with one connection server, then transfers data concurrently from the multiple data servers located on subnets, while providing client connection anywhere along the network. The separation of data transfer from connection establishment is completely transparent to the client. Split-encoding technique reduces network impact, avoids redundancy of data, and improves data transmission time; offers better reliability and Security. The Split-protocol was successfully engaged in defending against the DoS/DDoS attack. This paper describes the design and initial implementation of Split-encoding, serving as a basis for application implementation. It also reports the results of quantitative studies regarding the execution of the initial execution.