Performance Analysis Of Hierarchical Fault Tolerance Protocal For Mobile Agent Systems

A Mobile Agent (MA) is autonomous and identifiable software process that travel through a network of heterogeneous machine and act autonomously on behalf of user. Improving the survivability of MA in presence of various faults is the major issue concerns with implementation of MA. This paper presents a brief introduction of Hierarchical Fault Tolerance Protocol (HFTP) for Mobile Agents, which can tolerate host failure, system failure as well as link failure by grouping the hosts within a network and rear guard based migration of MA in the global network. This paper also analyzes the HFTP for its performance in presence of faults by using Colored Petri Net (CPN) based architectural model of HFTP.