Distributed object applications can be made fault tolerance by replicating their constituent object, and by distributing these replicas across the different computers in the network. The idea behind object replication is that the failure of one replica of an object can be masked from a client of the object because the other replicas can continue to perform any operation that the client requires.

In this paper, we propose IFTS (Intelligent Fault-Tolerant CORBA Service) in handling faults of server object replica using replication concept to support fault tolerance. And it can choose the fastest primary replica using multicast mechanism. And it also introduces passive replication for secure fault tolerance.

Furthermore, we propose the design and implementation of IFTS service to provide reliability and faster service using multicast technology by extending existing CORBA ORB.