Design and Implementation of SDN Multicast for Distributed Shared Memory

Distributed shared memory typically use conventional Ethernet as communication medium using broadcast or multicast for synchronization mechanisms. This causes uncertainty of time spent in synchronization and interruption of unrelated processes in the same multicast group. In this research, we propose a dynamic SDN multicast mechanism to improve efficiency of synchronization for distributed shared memory by using an SDN-based multicast forwarding rule and a dynamic core based tree algorithm. The experiments on the prototype system demonstrate that it could provide better performance compared to the conventional Ethernet based solution in terms of response time and process scheduling in the homogeneous testing environment.