A BGP session takeover method for high availability

Recently, as needs for real-time services like financial services are ever increasing, improvement in the service quality of data communication networks in terms of availability and reliability is emerging as a critical issue. In this context, the availability, reliability, and scalability of routers that control data flow and path between networks on the data communication network are being recognized as critical problems. Many methods for improving reliability and availability to minimize loss cost caused by the failure of a router on the data communication network are being studied. This paper investigated a BGP session takeover method that supports the high availability of BGP session, a protocol that uses TCP, among various routing protocols.