CRHA: An efficient HA revitalization to sustain binding information of home agent in MIPv6 network

Abstract

Home agents (HAs) maintain the binding information of mobile node (MN). The binding cache of HA stores the associated data of MN. It represents a single point of failure in Mobile IPv6 networks. An efficient fault-tolerant method is essential to defend these information without any loss. This paper focuses on the revitalization of HA at the time of failure. The standby HAs are formed as clusters within the redundant HA set. Every home agent synchronize its bindings to the next highest preference value home agent. In this paper, we propose clustered redundant home agent (CRHA) protocol to maintain the binding association within the cluster. The simulation results show that our approach is better than the existing recovery schemes.