Multi-Domain Multicast Routing Mutation Scheme for Resisting DDoS attacks

Network performance of multicast transmissions such as bandwidth, utilization and delay is very important to improve the quality of user experience and the above constraints have to be considered. Most of the current multicast protocol infrastructures use static routes, however, static routing policies provide potential convenience for attackers who can perform network sniffing or initiate DoS attacks. We propose a multi-constraint multicast routing mutation mechanism to enable dynamic changes in multicast routing while satisfying certain quality of service to achieve proactive multicast routing defense, which increases the attacker's attack cost and reduces the defender's defense overhead. In addition, for the high time complexity of the multicast tree generation algorithm, we propose a multi-controller multicast routing algorithm with multi-domains. We perform simulations and show that the defense performance of multicast routing is significantly improved after adopting this mechanism.