Qos-aware Dynamic Replica Replacement Method with Secured Content Distribution

Replication technique, which is the major thrust research, has been much studied in peer to peer overlay networks for the past two decades. P2P network is a good elucidation for distributed computing than client-server model. The peers in P2P networks act as a client or a server or a router. Peer to peer applications are emerged as a powerful paradigm for content sharing across the world which cause more internet traffic. In order to decrease the internet traffic and search success of an enhanced query searching and data retrieval mechanism of our previous work [5], and to increase the data availability, reliability QOS aware dynamic replica replacement method with secured content distribution is proposed in this system. In this mechanism replace the old replica by new replica with the help of Least Recently Used (LRU) technique. Routing is performed hierarchically by broadcasting the query to the strong clusters. From the extensive simulations using NS2 simulator, the proposed system achieves reduced latency, reduced packet drop, and increased query efficiency.