Node mobility protocols in the Internet

In this paper, the various protocols used to achieve node mobility on the Internet are compared and evaluated. Node mobility can be defined as hiding from the application or user changes in the connection point to the Internet of the terminal. Node mobility can be broken down into two forms of mobility: wide area mobility and local mobility. Wide area mobility can be achieved by satisfying two factors: mobile node reachability and communication continuity. Local mobility can be achieved by satisfying two factors: packet loss avoidance and control traffic suppression. In this paper, the various proposed protocols for achieving node mobility are analyzed, and the methods used to satisfy the above factors are classified. Each classified method is then analyzed and evaluated from the standpoint of communication efficiency, scalability, security, fault tolerance, and ease of implementation. In addition, specific examples are given for the representative protocols.