AirDev Platform Network Architecture implements a three-tier DMZ design with WAN/Internet ingress through WAF and API Gateway, routing traffic via Firewall to a Core Layer containing Core Router and Load Balancer. The Distribution Layer segregates Web (VLAN 10), App (VLAN 20), and Data (VLAN 30) tiers across separate subnets within the 10.0.0.0/16 core network, with each tier connected via Distribution Switches and Load Balancer. The Access Layer provides supporting services—Auth/Identity, Monitoring, Logging, Redis Cache, Object Storage, KMS Encryption, and Message Queue—enabling secure, observable, and resilient platform operations. This architecture demonstrates defense-in-depth principles with clear trust boundaries, VLAN isolation, and centralized security controls. Fork this diagram on Diagrams.so to customize subnets, add redundancy, or adapt for your cloud provider migration. The design balances security, performance, and operational visibility for enterprise workloads.