Enterprise Network Architecture Diagram with Cisco Switches and Routers #55619 (License: Personal Use)

This diagram illustrates a robust, hierarchical enterprise network with dual Cisco 3620 routers connecting to the PSTN cloud. Two Layer 3 switch backbones provide redundancy and inter-VLAN routing, feeding multiple Layer 3 distribution switches that connect to Layer 2 access switches serving IP phones and eMac workstations. The design supports high availability, segmentation, and unified communications across distributed sites.

Used in IT infrastructure documentation, network design guides, or Cisco certification study materials; targets network engineers, architects, and students seeking to understand enterprise LAN/WAN topologies and Cisco device roles.