Research convergence time of dynamic routing protocols under DoS-type attacks

This article investigates the impact of DoS attacks on the convergence time of dynamic routing protocols under changing network topologies. Proactive (OLSR) and reactive (AODV) protocols are analyzed, focusing on their operational principles and route determination methods. The experiments were conducted using the NS-3 simulator, which provides high-detail network modeling capabilities. The test topology included routers and personal computers, with a DoS attack initiated at one of the nodes. The results show that OLSR has a shorter convergence time due to its proactive nature, making it preferable for networks requiring high resilience. AODV exhibited greater delays due to its reactive route discovery approach. The difference in convergence times for both protocols is minimal and is largely unaffected by the topological distance of the link failure.