Abstract
Large scale software-defined IoT (SD-IoT) networking need to deploy multiple controllers. How to ensure load balancing among multiple controllers is important to network performance. This paper proposes a switch migration strategy (MMM) which aims to minimize the global migration cost in SD-IoT networks. MMM not only considers the migration cost when making a migration decision, but also takes both the load of the overloaded domain and other domains after migration into consideration when selecting a switch for migration. Simulation experiments prove the effectiveness of the proposed scheme.
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