Evaluating Traffic Redirection Mechanisms for High Availability Servers
Elias Konidis, Panagiotis C. Kokkinos, Emmanouel Varvarigos · 2016
The availability of cloud applications and their respective server high availability is affected by inefficient load balancing configurations, denial of service attacks (DoS), link failures, power outages etc. As these issues may never disappear, traffic redirection from the affected server to a backup one is an important procedure followed for restoring the provided service. In this work, we initially evaluate a reverse proxy server-based scheme for traffic redirection, using High Availability proxy server(HAproxy) and also we develop a Software Defined Network (SDN)-based solution. We compare the proxy server-based and the SDN-based schemes, exhibiting how each can be used to mitigate downtime in case of a failure, providing high availability.