implementing-purdue-model-network-segmentation

Implement network segmentation based on the Purdue Enterprise Reference Architecture (PERA) model, separating ICS networks into hierarchical security zones from Level 0 physical process through Level 5 enterprise and enforcing strict traffic control through IEC 62443-aligned DMZs between OT and IT domains. Use when designing ICS/SCADA network zones or segmenting OT from IT networks.