Loss Recovery Performance Comparison of Two Reliable Multicast Protocols (SRM and TORM)

Growing demand for multicast communication in network settings has focused attention on the performance of reliable multicast protocols.This paper compares the loss recovery performance of two reliable multicast protocols: SRM/Adaptive and the proposed protocol-TORM. Under the two representative topologies, mainly by using software simulation, the paper compares recovery latency and requests numbers of these two protocols. The varying parameters are topology,node number and link loss rate. It also tests SameView, the application based on TORM protocol, developed by the authors' lab. Their findings confirm that SRM is unsuitable for large scale, real-time and interactive applications; and show that TORM is a better behaved reliable multicast protocol than SRM in the settings considered in the paper, many properties of it, including congestion control and traffic management, make it more suitable for these applications.