sentences:  This is because the current interdomain infrastructure lacks the necessary tools to efficiently handle packet loss and the security needed to create a functional business model.SMART IP Multicast is an experimental protocol that enables the interdomain transmission of Secure Reliable IP Multicast, thus overcoming the challenges of deploying wide area interdomain IP Multicast transmissions.SMART IP Multicast reduces the complexity of deploying wide area IP Multicast in the same way MFTP (Multicast File Transfer Protocol) accomplishes this goal for file transfer, namely allowing for security and reliability to have full interoperability.