Cooperative reliable multicast protocol with local recovery
Young-Mi Ohk, Steven H. Low · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1998
A cooperative reliable multicast protocol (CRMP) has been developed to improve real-time data transmission on the Internet Multicast Backbone by adding a retransmit server and some repair servers to the multicast session in order to recover lost packets. This paper describes a design and implementation of CRMP with local recovery (L-CRMP), an extension to the original CRMP. In L-CRMP each repair server can work as a local server that retransmits packets to other repair servers that do not receive them from the source. Our goal in L-CRMP is to reduce the network overhead caused by retransmission packets while keeping the effective loss rate at the receivers approximately the same.