Design and Implementation of Fault-Tolerant LISP Mapping System

The network applications become more complex such that they need to integrate big data. An emerging problem in current networks is scalability, such as the size of BGP routing table or the multihoming problem. The Locator/Identifier Separation Protocol (LISP) is a protocol to solve such problems. The main concept underlying LISP is a separation between the identifier and the locator. However, few studies have focussed on fault management in LISP mapping system. In this study, we design a fault management system for LISP mapping system on the Software-Defined Network (SDN) controller and modifying the functionality of the tunnel router. We introduce new control messages and processes to check for the survival of LISP mapping system and create a backup of records among controllers. Furthermore, we design and implement functionalities to exchange controller information among the tunnel routers. We implement a scenario to test our fault management system.