A multicasting scheme using multiple MCS for reducing end-to-end path delay in ATM networks

In this paper, we proposed two models, the full multiple MCS (Multicast Ser ver) model and the hybrid multiple MCS model to support multiple R ICS over a single large cluster in ATM (Asynchronous Transfer Mode) networks. Also, we presented two methods for R ICS assignment which are known as 2PSPMT (2 Phase Shortest Path based on Multicast tree) and hybrid-2PSPMT, and evalua ted its performance by simulation. When an ATR I host requests joining a sp ecific multicast group, the MARS (Multicast Address Resolution Server) desi gnates a proper R ICS among the multiple MCSs for the group member to minim ize the average path delay between the sender and the group members. Each m ethod for MCS assignment construct a a-phase partial multicast tree based o n the shortest path algorithm. We reduced the average path delay in tile mu lticast tree using these methods with various cluster topologies and MCS di stribution scenarios in addition to distributing the load among multiple MC Ss.