Mechanisms for Enhancing Network Services by Live Migration in the Network

Abstract

It has become more crucial for Infrastructure as a Service (IaaS) providers to offer an operational environment with high stability and availability due to the fast expansion of the IaaS industry. Maintaining network connectivity after real-time virtual machine migration is a crucial challenge. In this study, we provide a Handover technique to keep users' TCP connections active following real-time wide-area network migration. Most Unix-based operating systems support handover. Furthermore, they include a protection mechanism against Distributed Denial of Service. We develop a reliable method of thwarting DDoS assaults with the implementation of handover and the remaining parts of the DDoS defense system. We also implement a false three-way handover to prevent the connection from being blocked by the NAT router after the changeover. Most Unix-based operating systems support handover.