Network Redundancy: Layer 1/2 Loops, STP, and Failover Design
Network redundancy means building more than one path for data to travel, so a single failed link or device doesn’t take down access to network resources entirely. It’s a foundational design principle behind the three-tier hierarchical model (core, distribution, access), and it comes with a real, important trade-off: physical redundancy alone can create Layer 2...
