About This Architecture

Enterprise campus network using a three-tier hierarchical design with Palo Alto PA-1 firewall protecting DMZ servers and H3C S6520 core switches providing 10GbE redundancy. Traffic flows from ISP through the firewall to either DMZ servers or the trust core, which aggregates via dual L3 switches (Agg1, Agg2) down to four L2 access switches serving PCs and wireless APs. This architecture delivers high availability, clear security zones, and scalable access layer expansion for large office environments. Fork this diagram on Diagrams.so to customize VLAN assignments, add additional access switches, or integrate OCI hybrid networking components. The dual-core design with cross-links eliminates single points of failure in the distribution layer.

People also ask

How do I design a scalable enterprise campus network with redundancy and security zones?

Use a three-tier hierarchical design: place a Palo Alto PA-1 firewall at the edge to protect DMZ servers and the trust core, deploy dual H3C S6520 core switches with 10GbE cross-links for redundancy, aggregate via dual L3 switches, and distribute to L2 access switches serving endpoints and wireless APs. This topology isolates security zones, eliminates single points of failure, and scales easily.