Link-failure assessment in redundant ICS networks supported by the interconnected-asset ontology

Abstract

Ethernet-based networks for Industrial Control Systems (ICS) rely on redundant links to mitigate failures, to increase availability, but also masking failures and complicating assessment of redundancy remaining. We use the Interconnected-asset Ontology to represent topologies from automated snapshots without the need for changes infrastructure or fundamental operation of the ICS network. The presented approach and prototype provides assessments seamlessly integrated in a state-of-the-art industrial control system.