Three-tier hierarchical smart factory network integrating 5G core infrastructure, edge computing, and industrial IoT across DMZ, core, distribution, and access layers. Traffic flows from China Mobile cloud data center through 5G UPF/AMF/SMF control plane via SD-WAN gateway, dual firewalls, and WAF into redundant core switches, then distributes to MEC edge nodes, indoor/outdoor gNBs, MES servers, PLC/DCS controllers, and IoT sensors. This architecture isolates critical manufacturing systems (MES, SCADA, PLC) in separate VLANs while enabling real-time edge processing and 5G connectivity for AGVs, cameras, and environmental sensors. Fork and customize this diagram on Diagrams.so to adapt VLAN segmentation, firewall rules, or MEC placement for your factory topology. The dual-firewall design with SOC monitoring enforces defense-in-depth for OT/IT convergence in industrial environments.