About This Architecture

Enfidha Industrial Network integrates IT and OT domains using Cisco IE3000 industrial switches at the access layer and ENF1-NS70339 distribution switches, connected via fiber-optic 802.1Q trunk links. Traffic flows from the Internet through a core router and firewall, then splits between IT workstations and servers on the corporate LAN and industrial devices across three VLANs: VLAN 10 for PLCs and machines, VLAN 20 for SCADA and HMI systems, and VLAN 30 for management. This architecture demonstrates network segmentation and defense-in-depth for critical industrial environments, isolating control systems while maintaining centralized monitoring and management. Fork this diagram on Diagrams.so to customize VLANs, add redundancy, or adapt the topology for your facility's requirements. The SFP uplink modules enable flexible 1G/10G scaling as bandwidth demands grow.

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How do you design a secure industrial network that separates OT and IT traffic while maintaining centralized management and SCADA visibility?

This Enfidha industrial network uses Cisco IE3000 access switches and ENF1-NS70339 distribution switches connected via fiber-optic 802.1Q trunks, with three VLANs isolating PLCs/machines (VLAN 10), SCADA/HMI (VLAN 20), and management (VLAN 30) behind a firewall. This segmentation prevents lateral movement while enabling authorized cross-VLAN communication for monitoring and control.