Building on virtualization and programmability 5G networks aim at the concurrent support of application domains with different functional and/or QoS requirements, both across and within vertical domains. Towards these requirements, network slicing mechanisms allow the management and orchestration of the underlying pool of resources, typically within a single administrative domain. However, in several occasions, verticals are expected to have a large geographical footprint, often crossing the

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... inistrative boarders of multiple network domains, placing a subsequent functional requirement for cross-domain orchestration. In this paper we describe our approach on cross-domain slicing operations for the case of Industrial Applications with strict and differentiating QoS requirements, with a particular focus on Wind Power plants. We describe the design of our SDN-based orchestration TRL-7 prototype and further provide a detailed look on our testbed prepared for measurements in a Wind Power plant in Brande, Denmark.