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In an industrial plant, there is usually a mix of devices with different levels of security features and computation capabilities. If a mix of devices with various degrees of security features and capabilities communicate, the overall network dynamics with respect to security and network performance will be complex. A secure communication path with high latency and low bandwidth may not satisfy the operational requirements in a plant. Therefore, there is a need to assess the relation of security and network performance for overall plant operation. In this work we focus on identifying an optimal flow path between two devices in a multi-hop heterogeneous network. We propose a model and an algorithm to estimate and generate a network path identified by flow performance indicators of a heterogeneous communication network. Through an example, we show how the flow performance metrics change with security, capacity and reachability of the devices in the network.M2M Communication

Assessing Security, Capacity and Reachability of a Heterogeneous Industrial Network during Planning Phase