The Spanning Tree Protocol (STP) network diagram shows how redundant network links are managed to prevent loops in a switched Ethernet environment. It illustrates a layered structure with core, distribution, and access switches interconnected using Ethernet trunks. VLAN 10, VLAN 20, and VLAN 30 are represented, each connecting PCs and servers via access ports. The red dashed lines show redundant links blocked by STP to maintain a loop-free topology. This ensures network stability and fault tolerance, allowing backup paths to activate automatically if the primary link fails, optimizing both performance and reliability in enterprise networks.
